Page 1 Transition from MELSEC-A/QnA (Large Type), AnS/QnAS (Small Type) Series to Q Series Handbook (Network Modules) Apr. 2018 Edition...
Page 3: Safety Precautions
SAFETY PRECAUTIONS (Read these precautions before using this product.) Before using this product, please read this handbook and the relevant manuals introduced in this handbook carefully and pay full attention to safety to handle the product correctly. In this handbook, the safety precautions are classified into two levels: " WARNING"...
Page 4 [Design Precautions] WARNING ● For the operating status of each station after a communication failure in the data link or the network, refer to the following manuals. Failure to do so may result in an accident due to an incorrect output or malfunction. •...
Page 5 CAUTION ● After changing the parameter of the CPU module or the remote I/O module, reset the CPU module. Failure to do so may cause malfunction, since the previous parameter setting remains in the module. ● Do not install the control lines or communication cables together with the main circuit lines or power cables.
Page 6 [Installation Precautions] WARNING ● Shut off the external power supply (all phases) used in the system before mounting or removing a module. Failure to do so may result in electric shock or cause the module to fail or malfunction. CAUTION ●...
Page 7 [Wiring Precautions] WARNING ● Shut off the external power supply (all phases) used in the system before wiring. Failure to do so may result in electric shock or cause the module to fail or malfunction. ● After installation and wiring, attach the included terminal cover to the module before turning it on for operation.
Page 8 [Wiring Precautions] CAUTION ● Mitsubishi Electric programmable controllers must be installed in control panels. Connect the main power supply to the power supply module in the control panel through a relay terminal block. Wiring and replacement of a power supply module must be performed by qualified maintenance personnel with knowledge of protection against electric shock.
Page 9 [Startup and Maintenance Precautions] CAUTION ● Before performing online operations (especially, program modification, forced output, and operating status change) for the running CPU module on another station from GX Developer over the MELSECNET/H network, read relevant manuals carefully and ensure the safety. Improper operation may damage machines or cause accidents.
Page 10: Conditions Of Use For The Product
CONDITIONS OF USE FOR THE PRODUCT (1) Mitsubishi programmable controller ("the PRODUCT") shall be used in conditions; i) where any problem, fault or failure occurring in the PRODUCT, if any, shall not lead to any major or serious accident; and ii) where the backup and fail-safe function are systematically or automatically provided outside of the PRODUCT for the case of any problem, fault or failure occurring in the PRODUCT.
Page 11: Revisions
This handbook confers no industrial property rights or any rights of any other kind, nor does it confer any patent licenses. Mitsubishi Electric Corporation cannot be held responsible for any problems involving industrial property rights which may occur as a result of using the contents noted in this handbook.
Page 12: Table Of Contents
CONTENTS SAFETY PRECAUTIONS ..........................A - 1 CONDITIONS OF USE FOR THE PRODUCT ....................A - 8 REVISIONS ..............................A - 9 CONTENTS ..............................A - 10 GENERIC TERMS AND ABBREVIATIONS ....................A - 14 CHAPTER 1 INTRODUCTION 1 - 1 to 1 - 20 Transition from MELSECNET (II) and /B to MELSECNET/H ............
Page 13 3.2.2 Cable performance comparisons ....................3 - 8 Functional Comparisons ........................ 3 - 10 Switch Settings Comparisons ......................3 - 11 Parameter Comparisons ........................ 3 - 12 3.5.1 Parameter comparisons ......................3 - 12 3.5.2 Parameter change example ....................3 - 13 Program Comparisons ........................
Page 14 CHAPTER 6 REPLACEMENT OF CC-LINK 6 - 1 to 6 - 27 List of CC-Link Alternative Models ....................6 - 1 Performance Specifications Comparisons ..................6 - 2 6.2.1 Module performance comparisons ................... 6 - 2 6.2.2 Cable performance comparisons ....................6 - 4 Functional Comparisons ........................
Page 15 The manuals and catalogues for our products, products manufactured by Mitsubishi Electric Engineering Co., Ltd., and Mitsubishi Electric System & Service Co., Ltd. are shown in Appendix of each handbook for transition.
Page 16: Generic Terms And Abbreviations
Unless otherwise specified, this handbook uses the following generic terms and abbreviations. Generic term/abbreviation Description Series A series Abbreviation for large types of Mitsubishi Electric MELSEC-A series programmable controllers Abbreviation for compact types of Mitsubishi Electric MELSEC-A series programmable AnS series controllers A/AnS series...
Page 17 [About symbols used in figures] MELSECNET( II ) MELSECNET/H Master station Local station Control station Normal station Remote I/O station Remote master station Remote I/O station  stands for the station No.  stands for the network No., and  stands for the station No. - 15...
Page 18: Chapter 1 Introduction
INTRODUCTION INTRODUCTION 1.1 Transition from MELSECNET (II) and /B to MELSECNET/H 1.1.1 Transition to the Q series To replace the MELSECNET (II) and /B system with the Q series system, replace it with the MELSECNET/H system. For a replacement method, refer to Section 1.1.2. The following shows the configuration of the Q series MELSECNET/H system after the transition and the system configuration precautions at transition for each of the MELSECNET (II) and /B system configurations.
Page 19 INTRODUCTION (1) Optical cable system (a) 2-tier system 1: System configuration example using local stations only MELSECNET( II ) MELSECNET/H System configuration precautions 1) Distance between stations: If this value exceed the Q series specification values when re-using the MELSECNET(II) Optical loop Optical loop system cables, optical cables, etc.
Page 20 INTRODUCTION (c) 2-tier system 3: System configuration example using local stations/remote I/O stations MELSECNET( II ) MELSECNET/H System configuration precautions 1) Distance between stations: If this value exceed the Q series specification values when re-using the MELSECNET(II) system cables, optical cables, etc. has to be changed.
Page 21 INTRODUCTION (e) 3-tier system 2: System configuration example using 2-tier local stations and 3-tier remote I/O stations MELSECNET( II ) MELSECNET/H System configuration precautions 1) Distance between stations: If this value Optical loop Optical loop exceed the Q series specification values when re-using the MELSECNET(II) system cables, optical cables, etc.
Page 22 INTRODUCTION (2) Coaxial cable system (a) 2-tier system 1: System configuration example using local stations only MELSECNET( II ) MELSECNET/H System configuration precautions 1) Distance between stations: If this value exceed the Q series specification values when re-using the MELSECNET(II) system cables, 3C-2V has to be changed to 5C-2V.
Page 23 INTRODUCTION (c) 2-tier system 3: System configuration example using local stations/remote I/O stations MELSECNET( II ) MELSECNET/H System configuration precautions 1) Distance between stations: If this value exceed the Q series specification values when re-using the MELSECNET(II) system cables, 3C-2V has to be changed to 5C-2V.
Page 24 INTRODUCTION (d) 3-tier system 1: System configuration example using local stations only MELSECNET( II ) MELSECNET/H System configuration precautions 1) Distance between stations: If this value exceed the Q series specification values when re-using the MELSECNET(II) system cables, 3C-2V has to be changed Coaxial loop to 5C-2V.
Page 25 INTRODUCTION (f) 3-tier system 3: System configuration example using local stations/remote I/O stations MELSECNET( II ) MELSECNET/H System configuration precautions 1) Distance between stations: If this value exceed the Q series specification values when re-using the MELSECNET(II) system cables, 3C-2V has to be changed to 5C-2V.
Page 26 INTRODUCTION (3) Twisted cable system (a) 2-tier system 1: System configuration example using local stations only MELSECNET/B MELSECNET/H System configuration precautions Optical loop Network 1 1N New installation: The installation has to be changed for an optical loop system or a coaxial bus system.
Page 27 INTRODUCTION (c) 2-tier system 3: System configuration example using local stations/remote I/O stations MELSECNET/B MELSECNET/H System configuration precautions Optical loop Network Network 4/2M 1) New installation: The installation has to Coaxial bus be changed for an optical loop system or a coaxial bus system. 4/2M 2) Composite system: As a mixture of a Network 1...
Page 28 INTRODUCTION (d) 3-tier system 1: System configuration example using local stations only MELSECNET/B MELSECNET/H System configuration precautions Optical loop Network 1 1N 2/2M Network 2 2N New installation: The installation has to be changed for an optical loop system or a coaxial bus system.
Page 29 INTRODUCTION (e) 3-tier system 2: System configuration example using 2-tier local stations and 3-tier remote I/O stations MELSECNET/B MELSECNET/H System configuration precautions Optical loop Network 1 1N Twisted 2/2M New installation: The installation has to be Network 2 2R3 changed for an optical loop system or a coaxial bus system.
Page 30: Transition Procedure To A Q Series Melsecnet/H System
INTRODUCTION 1.1.2 Transition procedure to a Q series MELSECNET/H system The A/QnA series MELSECNET/10 network modules were discontinued. The AnS/QnAS series MELSECNET/10 network modules and the A-A1S module conversion adapter are produced continuously. The Notice MELSECNET(II) system of the A/QnA series can be replaced with the MELSECNET/10 system simultaneously by using those products.
Page 31: Replacement Selection Points
INTRODUCTION 1.1.3 Replacement selection points To replace any one stations in the existing MELSECNET(II) with the QCPU or to add the QCPU in the system, replace the network used with the MELSECNET/10 simultaneously. (1) Replacing the existing A/AnS/QnA/QnASCPU with the QCPU This section describes the methods for replacing the network used with the MELSECNET/10 simultaneously and replacing any one stations in the existing MELSECNET(II) with the QCPU.
Page 32 INTRODUCTION (2) Adding the QCPU to the existing network system This section describes the methods for replacing the existing MELSECNET(II) network with the MELSECNET/10 simultaneously and adding the QCPU in the system. Existing network configuration Replaced network configuration MELSECNET(II) MELSECNET/10 Added QCPU Item Advantage...
Page 33: Replacement Of The Melsecnet/10 For A/Ans/Qna/Qnas Series With The Melsecnet/H For Q Series
INTRODUCTION 1.2 Replacement of the MELSECNET/10 for A/AnS/QnA/QnAS Series with the MELSECNET/H for Q Series The following shows the configuration of a MELSECNET/H network system for Q after transition and the system configuration precautions for transition for each of the system configurations for MELSECNET/ 10 network systems for A/AnS/QnA/QnAS series.
Page 34 INTRODUCTION (c) Coaxial loop system MELSECNET/10 MELSECNET/H System configuration precautions The following item is provided in addition to common precautions (1) described on the previous page. • Overall distance: If this value exceeds Coaxial loop the Q series specification value when Coaxial bus the MELSECNET/10 system cables are re-used, measures (e.g.
Page 35 INTRODUCTION (a) Optical loop system • When the master station is replaced MELSECNET/10 MELSECNET/H System configuration precautions Optical loop Optical loop The module configuration example when the master station is replaced : QCPU + QJ71LP21-25 Network 1 1R3 Network 1 1R3 1R1 to 1R3: QJ72LP25-25 (MELSECNET/H mode) •...
Page 36 INTRODUCTION (b) Coaxial bus system • When the master station is replaced MELSECNET/10 MELSECNET/H System configuration precautions Coaxial bus Coaxial bus The module configuration example when the master station is replaced : QCPU + QJ71BR11 Network 1 Network 1 1R1 to 1R3: QJ72BR15 (MELSECNET/H mode) •...
Page 37: Replacing The Cc-Link For A/Ans/Qna/Qnas Series With The Cc-Link For Q Series
INTRODUCTION 1.3 Replacing the CC-Link for A/AnS/QnA/QnAS Series with the CC-Link for Q Series When using the A/AnS/QnA/QnAS series CC-Link system master/local module, replace it with the QJ61BT11N CC-Link system master/local module. Currently used CC-Link dedicated cables, remote I/O stations, remote device stations, and intelligent device stations can be used excluding some models.
Page 38: List Of Melsecnet (Ii) And /B Alternative Models
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 2.1 List of MELSECNET (II) and /B Alternative Models (1) Replacement of MELSECNET (II) modules with MELSECNET/H modules Network type A/AnS/A0J2(H) series Alternative models for Q series A1NCPUP21...
Page 39 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (2) Replacement of MELSECNET/B modules with MELSECNET/H modules Network type A/AnS series Alternative models for Q series AJ71AT21B QJ71NT11B (Twisted bus) Twisted pair QJ71LP21-25 (Optical loop: SI cable supported) A1SJ71AT21B QJ71BR11 (Coaxial bus) Supported by the QCPU only.
Page 40: Performance Specifications Comparisons
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 2.2 Performance Specifications Comparisons 2.2.1 Module performance comparisons (1) Comparison between MELSECNET (II) module (optical loop) and MELSECNET/H module (optical loop) (a) SI optical fiber cable, H-PCF optical fiber cable : Compatible, : Partial change required, ×...
Page 41 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (b) Modules for GI optical cable : Compatible, : Partial change required, × : Incompatible Specifications Compat- Precautions for Item MELSECNET ( II ) module MELSECNET/H module ibility replacement Optical loop Optical loop (QJ71LP21-25) (MELSECNET/10 mode), Max.
Page 42 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (2) Comparison between MELSECNET (II) module (coaxial loop) and MELSECNET/H module (coaxial bus) : Compatible, : Partial change required, × : Incompatible Specifications Compat- Precautions for Item MELSECNET ( II ) module MELSECNET/H module ibility replacement...
Page 43 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (3) Comparison between MELSECNET/B module (twisted pair) and MELSECNET/H module (optical loop/coaxial bus) : Compatible, : Partial change required, × : Incompatible Specifications MELSECNET/B module MELSECNET/H module Compat- Precautions for Item ibility replacement...
Page 44: Cable Performance Comparisons
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) Specifications MELSECNET/B module MELSECNET/H module Compat- Precautions for Item ibility replacement Optical loop Coaxial bus Twisted pair (QJ71LP21-25) (QJ71BR11) (Encoding method) NRZI coding Modulation method (Encoding (Modulation method) NRZI method Nothing to be noted though (Encoding method) method)
Page 45 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (2) Coaxial cable (a) Overall distance : Compatible, : Partial change required, × : Incompatible MELSECNET ( II ) module MELSECNET/H module Compat- Type Precautions for replacement (coaxial loop) (coaxial bus) ibility 3C-2V 10km...
Page 46 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (3) Twisted pair cable (a) Overall distance, Distance between stations : Compatible, : Partial change required, × : Incompatible Specifications MELSECNET/H module Communication MELSECNET/B module Compat- (QJ71NT11B) Precautions for replacement speed ibility Twisted pair...
Page 47: Functional Comparisons
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 2.3 Functional Comparisons : Compatible, : Partial change required, × : Incompatible Description Compat- Precautions for Item MELSECNET ( II ) module MELSECNET/H module ibility replacement MELSECNET/B module • X/Y are used to perform 1:1 •...
Page 48: Switch Settings Comparisons
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 2.4 Switch Settings Comparisons (1) Comparison between MELSECNET (II) modules and MELSECNET/H (optical loop and coaxial bus) modules : Compatible, : Partial change required, × : Incompatible Description Compat- Precautions for Switch name MELSECNET ( II ) module MELSECNET/H module...
Page 49: Parameter Comparisons
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 2.5 Parameter Comparisons 2.5.1 Parameter comparisons The network parameters of MELSECNET (II) are deleted when the programmable controller type is changed with the GX Developer. After changing the programmable controller type, set the MELSECNET/H network parameters again.
Page 50: Example Of Changing Parameters On 2-Tier System
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 2.5.2 Example of changing parameters on 2-tier system The following shows examples of how to change the LB/LW network parameters when replacing the MELSECNET (II) with MELSECNET/H. As MELSECNET (II) has three operation modes, the examples are shown for each operation mode. •...
Page 51 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (a) MELSECNET master station The following shows the network parameter settings of the MELSECNET master station (A3ACPU). 1) Network parameter setting (A3ACPU: MELSECNET master station) 2) Network range assignment (A3ACPU: MELSECNET master station) (b) MELSECNET local station As all stations perform cyclic communication according to the network range assignments of the master station (A3ACPU), there are no parameter settings for network range assignment on local...
Page 52 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (c) MELSECNET/H control station The following shows the network parameter settings after replacing with the MELSECNET/H control station (Q06UDVCPU). 1) Network parameter setting (Q06UDVCPU: MELSECNET/H control station) 2) Network range assignment (Q06UDVCPU: MELSECNET/H control station) 3) Refresh parameters (Q06UDVCPU: MELSECNET/H control station) - 15...
Page 53 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (d) MELSECNET/H normal station The following shows the network parameter settings after replacing with a MELSECNET/H normal station (Q02UCPU). The same parameter settings are required on all normal stations. 1) Network parameter setting (Q02UCPU: MELSECNET/H normal station) 2) Refresh parameters (Q02UCPU: MELSECNET/H normal station) - 16...
Page 54 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (2) MELSECNET II mode The following shows the procedure for changing the parameters in the case of a MELSECNET II mode 2-tier system configuration. MELSECNET ( II ) MELSECNET/H Optical loop Optical loop Q06UDVCPU A3ACPU...
Page 55 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) A MELSECNET/H module set as normal station requires network parameter setting. For replacement of MELSECNET (II) module mounted on the CPU module of the AnN/AnA/AnSCPU (excluding AnUS(H)CPU), newly set network parameters. The following shows parameters required on each station of MELSECNET/H.
Page 56 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (b) MELSECNET/H control station Each of the MELSECNET II first and second half settings correspond to [Setting1] and [Setting2] set according to the "Station inherent parameters" on MELSECNET/H. Points when replacing the first and second half of MELSECNET II MELSECNET sequence programs can be re-used more efficiently by using the station inherent parameters of MELSECNET/H.
Page 57 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 3) Station inherent parameter Set the first half in [Setting1] and the second half in [Setting2] as the inherent parameters. Station inherent parameter (Q06UDVCPU: MELSECNET/H control station) 4) Refresh parameters Refresh parameters (Q06UDVCPU: MELSECNET/H control station) - 20...
Page 58 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (c) MELSECNET/H normal station 1) Network parameter setting The network parameter settings of MELSECNET/H normal stations (Q02UCPU) are the same as those of MELSECNET/H normal stations when replaced with the MELSECNET mode. (Refer to the Section 2.5.2 (1) MELSECNET mode.) 2) Station inherent parameter For the station inherent parameter settings, settings of the same content as that for the control...
Page 59 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (3) MELSECNET II composite mode The following shows the procedures for changing the parameters in the case of a MELSECNET II composite mode 2-tier system configuration on an A3ACPU. MELSECNET ( II ) MELSECNET/H Optical loop Optical loop...
Page 60 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (a) MELSECNET II composite mode master station The following shows the network parameter settings of the MELSECNET II composite mode master station (A3ACPU). 1) Network parameter setting (A3ACPU: MELSECNET II composite mode master station) 2) Network range assignment (A3ACPU: MELSECNET II composite mode master station) : First half 3) Network range assignment (A3ACPU: MELSECNET II composite mode master station) : Second half - 23...
Page 61 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (b) Q06UDVCPU (control station) Each of the MELSECNET II first and second half settings correspond to [Setting1] and [Setting2] set according to the "Station inherent parameters" on MELSECNET/H. Points when replacing the first and second half of MELSECNET II MELSECNET sequence programs can be re-used more efficiently by using the station inherent parameters of MELSECNET/H.
Page 62 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 3) Station inherent parameter Set the first half in [Setting1] and the second half in [Setting2] as the inherent parameters. Station inherent parameter (Q06UDVCPU: MELSECNET/H control station) 4) Refresh parameters Refresh parameters (Q06UDVCPU: MELSECNET/H control station) - 25...
Page 63 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (c) MELSECNET/H normal station 1) network parameter setting The network parameter settings of MELSECNET/H normal stations (Q02UCPU) are the same as those of MELSECNET/H normal stations when replaced with the MELSECNET mode. (Refer to the MELSECNET mode.) 2) Station inherent parameter For the station inherent parameter settings, settings of the same content as that for the control...
Page 64: Example Of Changing Parameters On 3-Tier System (When Only The First Half Of Link Parameter Is Set)
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 2.5.3 Example of changing parameters on 3-tier system (When only the first half of link parameter is set) The following shows how to change a system on which first half of LB/LW link parameters is set, when replacing the MELSECNET (II) 3-tier system with MELSECNET/H.
Page 65 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) The following shows the flow of MELSECNET/H link data after being replaced from MELSECNET (II). Flow of LB/LW link data B/W 0 2Mp3 2Ns1 2Ns2 Network1 1Mp3 1Ns2 1Ns1 Link refresh MELSECNET/H LB/LW 0 Network 1...
Page 66 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) Network parameter setting is required for control and normal stations on MELSECNET/H. The following shows parameters required on each station of MELSECNET/H. Station Common parameter inherent Refresh parameter Inter-link data transfer (Network range assignment) parameter 1Mp3...
Page 67 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (a) MELSECNET (II) 2-tier master station M The following describes the network parameter setting of MELSECNET (II) 2-tier master station M (A3UCPU). 1) Network parameter setting (A3UCPU: MELSECNET (II) 2-tier master station M) 2) Network range assignment (A3UCPU: MELSECNET (II) 2-tier master station M) 3) Refresh parameter (A3UCPU: MELSECNET (II) 2-tier master station M) - 30...
Page 68 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (b) MELSECNET (II) 2-tier local station L2 As the cyclic communication is performed according to the network range assignments of the 2-tier master station (A3UCPU), there is no parameter setting for network range assignment on 2-tier local stations.
Page 69 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (e) MELSECNET/H network 1 control station 1Mp3 For MELSECNET/H network 1 control station 1Mp3, change the settings of MELSECNET (II) 2-tier master station by: • Assigning LB/LW to each station by the setting of " Network range assignment (Common parameters) "...
Page 70 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) The following describes the network parameter setting of MELSECNET/H network 1 control station 1Mp3 (Q06UDVCPU). 1) Network parameter setting (Q06UDVCPU: MELSECNET/H network 1 control station 1Mp3) 2) Network range assignment (Q06UDVCPU: MELSECNET/H network 1 control station 1Mp3) 3) Refresh parameter (Q06UDVCPU: MELSECNET/H network 1 control station 1Mp3) - 33...
Page 71 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (f) MELSECNET/H network 1 normal station 1Ns2 For MELSECNET/H network 1 normal station 1Ns2 that is not gateway station, change the settings • Performing B/W refreshment by the setting of " Refresh parameters " MELSECNET/H network 1 Normal station 1Ns2 Common parameters...
Page 72 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) The following describes the network parameter setting of MELSECNET/H network 1 normal station 1Ns2 (Q02UCPU). 1) Network parameter setting (Q02UCPU: MELSECNET/H network 1 normal station) 2) Refresh parameter (Q02UCPU: MELSECNET/H network 1 normal station 1Ns2) - 35...
Page 73 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (g) MELSECNET/H network 1 normal station 1Ns1/Network 2 control station 2Mp3 (Network range assignment of gateway stations, refresh parameters) For MELSECNET/H network 1 normal station 1Ns1 that is gateway station, change the settings by: •...
Page 74 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) The following describes the network parameter setting of MELSECNET/H network 1 normal station 1Ns1/network 2 control station 2Mp3 (Q06UDVCPU). 1) Network parameter setting (Q06UDVCPU: MELSECNET/H network 1 normal station 1Ns1/network 2 control station 2Mp3) 2) Refresh parameter (Q06UDVCPU: MELSECNET/H network 1 normal station 1Ns1) 3) Network range assignment (Q06UDVCPU: MELSECNET/H network 2 control station 2Mp3)
Page 75 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 4) Refresh parameter (Q06UDVCPU: MELSECNET/H network 2 control station 2Mp3) - 38...
Page 76 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (h) MELSECNET/H network 1 normal station 1Ns1/network 2 control station 2Mp3 (Inter-link data transfer of gateway station) For data transfer between MELSECNET/H networks 1 and 2, change the setting of MELSECNET (II) 2 and 3-tier by: •...
Page 77 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) The following describes the inter-link data transfer setting of MELSECNET/H network 1 normal station 1Ns1/network 2 control station 2Mp3 (Q06UDVCPU). 1) Inter-link data transfer parameter (Q06UDVCPU: MELSECNET/H network 1 normal station 1Ns1/network 2 control station 2Mp3) - 40...
Page 78 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (i) MELSECNET/H network 2 normal station 2Ns1, 2Ns2 For MELSECNET/H network 2 normal stations 2Ns1 and 2Ns2, change the settings by: • Performing B/W refreshment by the setting of " Refresh parameters " MELSECNET/H network 2 Normal station 2Ns1, 2Ns2 Common parameters...
Page 79 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) The following describes the network parameter setting of MELSECNET/H network 2 normal stations 2Ns1, 2Ns2 (Q02UCPU). 1) Network parameter setting (Q02UCPU: MELSECNET/H network 2 normal stations 2Ns1, 2Ns2) 2) Refresh parameter (Q02UCPU: MELSECNET/H network 2 normal stations 2Ns1, 2Ns2) - 42...
Page 80: Example Of Changing Parameters On 3-Tier System (When The First Half/Second Half Of Link Parameter Is Set)
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 2.5.4 Example of changing parameters on 3-tier system (When the first half/second half of link parameter is set) The following shows how to change network parameter on LB/LW, when replacing the MELSECNET II 3-tier system with MELSECNET/H.
Page 81 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) Concept of MELSECNET II 3-tier system replacement Step 1: Control station (1Mp3) setting Set the link parameter setting on MELSECNET II 2-tier master station as MELSECNET/H network 1 control station 1Mp3. •...
Page 82 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) Data flow between each station of MELSECNET/H is shown at next page. Flow of LB/LW link data 1FFF Network1 Empty 1Mp3 2Mp3 2Ns1 2Ns2 1Ns2 1Mp3 2Mp3 2Ns1 2Ns2 1Ns2 Link refresh Station inherent parameter LB/LW...
Page 83 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) Network parameter setting is required for control and normal stations on MELSECNET/H. The following shows parameters required on each station of MELSECNET/H. Common parameter (Network range Station inherent parameter Refresh parameter Inter-link data transfer assignment) 1Mp3...
Page 84 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (a) MELSECNET II 2-tier master station M The following describes the network parameter setting of MELSECNET II 2-tier master station M (A3UCPU). 1) Network parameter setting (A3UCPU: MELSECNET II 2-tier master station M) 2) Network range assignment (A3UCPU: MELSECNET II 2-tier master station M) 3) Refresh parameter (A3UCPU: MELSECNET II 2-tier master station M) (b) MELSECNET II 2-tier local station L2...
Page 85 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (c) MELSECNET II 2-tier local station L1/3-tier master station m (gateway station) The following describes the network parameter settings of MELSECNET II 2-tier local station L1/3- tier master station m (A3UCPU). 1) Network parameter setting (A3UCPU: MELSECNET II 2-tier local station L1/3-tier master station m) 2) Network range assignment (A3UCPU: MELSECNET II 3-tier master station m) 3) Refresh parameter (A3UCPU: MELSECNET II 3-tier master station m)
Page 86 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (e) MELSECNET/H network 1 control station 1Mp3 For MELSECNET/H network 1 control station 1Mp3, change the settings of MELSECNET II 2-tier first half/second half setting by: • Assigning LB/LW (first half + second half size) to each station by the setting of "Network range assignment (Common parameters)"...
Page 87 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) The following describes the network parameter setting of MELSECNET/H network 1 control station 1Mp3 (Q06UDVCPU). 1) Network parameter setting (Q06UDVCPU: MELSECNET/H network 1 control station 1Mp3) 2) Network range assignment (Q06UDVCPU: MELSECNET/H network 1 control station 1Mp3) - 50...
Page 88 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 3) Station inherent parameter (Q06UDVCPU: MELSECNET/H network 1 control station 1Mp3) 4) Refresh parameter (Q06UDVCPU: MELSECNET/H network 1 control station 1Mp3) - 51...
Page 89 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (f) MELSECNET/H network 1 normal station 1Ns2 For MELSECNET/H network 1 normal station 1Ns2 that is not gateway station, change the settings of MELSECNET II 2-tier first half/second half setting by: •...
Page 90 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) The following describes the network parameter setting of MELSECNET/H network 1 normal station 1Ns2 (Q02UCPU). 1) Network parameter setting (Q02UCPU: MELSECNET/H network 1 normal station 1Ns2) 2) Station inherent parameter (Q02UCPU: MELSECNET/H network 1 normal station 1Ns2) - 53...
Page 91 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 3) Refresh parameter (Q02UCPU: MELSECNET/H network 1 normal station 1Ns2) - 54...
Page 92 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (g) MELSECNET/H network 1 normal station 1Ns1/network 2 control station 2Mp3 (gateway station) For data transfer between MELSECNET/H networks 1 and 2, change the setting of MELSECNET II 2 and 3-tier by: •...
Page 93 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) For MELSECNET/H normal station 1Ns1 that is gateway station, change the settings of MELSECNET II 2-tier first half/second half settings by: • Dividing the data into the first half and second half and refreshing them by the setting of " Refresh parameters "...
Page 94 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) The following describes the network parameter setting of MELSECNET/H network 1 normal station 1Ns1/network 2 control station 2Mp3 (Q06UDVCPU). 1) Network parameter setting (Q06UDVCPU: MELSECNET/H network 1 normal station 1Ns1/network 2 control station 2Mp3) 2) Network range assignment (Q06UDVCPU: MELSECNET/H network 2 control station 2Mp3) - 57...
Page 95 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 3) Refresh parameter (Q06UDVCPU: MELSECNET/H network 1 normal station 1Ns1) 4) Refresh parameter (Q06UDVCPU: MELSECNET/H network 2 control station 2Mp3) - 58...
Page 96 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 5) Inter-link data transfer parameter (Q06UDVCPU: MELSECNET/H network 1 normal station 1Ns1/network 2 control station 2Mp3) - 59...
Page 97 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (h) MELSECNET/H network 2 normal station 2Ns1, 2Ns2 For MELSECNET/H network 2 normal station 2Ns1, 2Ns2 that is not gateway station, change the settings of MELSECNET II 2-tier first half/second half setting by: •...
Page 98 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) The following describes the network parameter setting of MELSECNET/H network 1 normal stations 2Ns1, 2Ns2 (Q02UCPU). 1) Network parameter setting (Q02UCPU: MELSECNET/H network 2 normal stations 2Ns1, 2Ns2) 2) Station inherent parameter (Q02UCPU: MELSECNET/H network 2 normal stations 2Ns1, 2Ns2) - 61...
Page 99 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 3) Refresh parameter (Q02UCPU: MELSECNET/H network 2 normal stations 2Ns1, 2Ns2) - 62...
Page 100: Program Comparisons
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 2.6 Program Comparisons 2.6.1 Comparison of special relays M (SB) and special registers D (SW) (1) Master station special relays Special relays enabled when host station is the master station. : Compatible, : Partial change required, ×...
Page 101 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) : Compatible, : Partial change required, × : Incompatible Special relay in the case of MELSECNET (II) Corresponding MELSECNET/H special relay master station Compat- Precautions for Number Name Description Number Name Description ibility...
Page 102: Transient Instructions
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (2) Local station special relay Special relays enabled when host station is the local station. : Compatible, : Partial change required, × : Incompatible Special relay in the case of MELSECNET (II) local MELSECNET/H special relay station Compat-...
Page 103 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) : Compatible, : Partial change required, × : Incompatible Special relay in the case of MELSECNET (II) local MELSECNET/H special relay station Compat- Precautions for Number Name Description Number Name Description ibility replacement...
Page 104 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (3) Master station special register Special register enabled when host station is the master station. : Compatible, : Partial change required, × : Incompatible Special register in the case of MELSECNET (II) MELSECNET/H special register master station Compat-...
Page 105 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) : Compatible, : Partial change required, × : Incompatible Special register in the case of MELSECNET (II) MELSECNET/H special register master station Compat- Precautions for Number Name Description Number Name Description ibility replacement...
Page 106 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (4) Local station special register Special registers enabled when host station is a local station : Compatible, : Partial change required, × : Incompatible Special register in the case of MELSECNET (II) MELSECNET/H special register master station Compat-...
Page 107 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 2.6.2 Transient instructions (1) MELSECNET II dedicated instruction Dedicated instructions that were used on MELSECNET II need to be replaced with the following dedicated instructions on MELSECNET/H. The table below shows a comparison between dedicated instructions on MELSECNET II and dedicated instructions on MELSECNET/H.
Page 108 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) : Can be used, × : Cannot be used Execution Target station station Instruction Name Description QnA/ AnU/ QCPU QCPU QnA- AnUS(H) SCPU [A-compatible instruction] Reads CPU device data on target stations of target network No. Network module Network module Channel 1...
Page 109: Replacement Precautions
REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 2.7 Replacement Precautions The following shows the replacement precautions when replacing MELSECNET (II) with MELSECNET/ (1) Cables For details on precautions for optical cables and coaxial cables, refer to Section 2.2.2 Cable performance comparisons.
Page 110 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (3) Sequence program (a) Data separation prevention When two words (32 bits) or more of cyclic data are handled, the old data sometimes is mixed with the new data. To read/write cyclic data of two words or more in a single operation, set data separation prevention by the following method.
Page 111 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) 2) Per-station block guarantee function When the "interlock program using BW" in 1) cannot be made, use the per-station block guarantee function for MELSECNET/H cyclic data. By enabling the per-station block guarantee function, handshaking is performed between CPU modules and network modules to refresh the network, and enables data separation prevention of cyclic data per station.
Page 112 REPLACEMENT OF MELSECNET (II) AND /B (PLC TO PLC NETWORK) (4) Precautions for system where AnN/AnS/AnACPU are mixed. Pay attention to the following when replacing the MELSECNET II system where AnN/AnA/AnSCPU (excluding AnUS(H)CPU) are mixed, with the MELSECNET/10 system. Refer to "Chapter 11 COMPOSITE SYSTEMS" in "Type MELSECNET/10 Network system (PLC to PLC network) Reference Manual", for details.
Page 113: List Of Melsecnet (Ii) And /B Alternative Models
REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) 3.1 List of MELSECNET (II) and /B Alternative Models (1) Replacement of MELSECNET (II) modules with MELSECNET/H modules Network type A/AnS/A0J2(H) series Alternative models for Q series A1NCPUP21 A2NCPUP21...
Page 114 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) (2) Replacement of MELSECNET/B modules with MELSECNET/H modules Network type A/AnS series Alternative models for Q series AJ71AT21B QJ71LP21-25 (Optical loop) Twisted pair A1SJ71AT21B QJ71BR11 (Coaxial bus) AJ72T25B QJ72LP25-25 (Optical loop) Twisted pair A1SJ72T25B QJ72BR15 (Coaxial bus)
Page 115: Performance Specifications Comparisons
REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) 3.2 Performance Specifications Comparisons 3.2.1 Module performance Compatibility comparisons (1) Comparison between MELSECNET (II) module (optical loop) and MELSECNET/H module (optical loop) (a) SI optical cable, H-PCF optical cable : Compatible, : Partial change required, ×: Incompatible Specifications MELSECNET (II) module...
Page 116 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) (b) Modules for GI optical cable : Compatible, : Partial change required, × : Incompatible Specifications Compat- Item MELSECNET (II) module MELSECNET/H module Precautions for replacement ibility Optical loop Optical loop(QJ71LP21G, QJ72LP25G) Max.
Page 117 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) (2) Comparison between MELSECNET (II) module (coaxial loop) and MELSECNET/H module (coaxial bus) : Compatible, : Partial change required, × : Incompatible Specifications Compat- Item MELSECNET (II) module MELSECNET/H module Precautions for replacement ibility Coaxial loop Coaxial bus (QJ71BR11, QJ72BR15)
Page 118 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) (3) Comparison between MELSECNET/B module (twisted pair) and MELSECNET/H module (optical loop/coaxial bus) : Compatible, : Partial change required, × : Incompatible Specifications MELSECNET/B module MELSECNET/H module Compat- Item Precautions for replacement ibility Optical loop Coaxial bus...
Page 119 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) : Compatible, : Partial change required, × : Incompatible Specifications MELSECNET/B module MELSECNET/H module Compat- Item Precautions for replacement ibility Optical loop Coaxial bus Twisted pair (QJ71LP21-25) (QJ71BR11) Communication Nothing to be noted though the Half duplex bit serial method Token ring method method...
Page 120: Cable Performance Comparisons
REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) 3.2.2 Cable performance comparisons (1) Optical fiber cable (a) Overall distance The overall distance (30km) does not differ according to the optical fiber cable. (b) Distance between stations 1) SI optical fiber cable : Compatible, : Partial change required, ×...
Page 121 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) (2) Coaxial cable (a) Overall distance : Compatible, : Partial change required, × : Incompatible MELSECNET (II) module MELSECNET/H module Compat- Type Precautions for replacement (Coaxial loop) (Coaxial bus) ibility 3C-2V 10km 300m Refer to...
Page 122: Functional Comparisons
REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) 3.3 Functional Comparisons : Compatible, : Partial change required, × : Incompatible Description Compat- Precautions for Item MELSECNET (II) module MELSECNET/H module ibility replacement MELSECNET/B module X/Y are used to perform 1:1 X/Y are used to perform 1:1 communications between the communications between the...
Page 123: Switch Settings Comparisons
REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) 3.4 Switch Settings Comparisons (1) Comparison between MELSECNET (II) modules and MELSECNET/H modules : Compatible, : Partial change required, × : Incompatible Description Compat- Precautions for Switch name MELSECNET (II) module MELSECNET/H module ibility replacement...
Page 124: Parameter Comparisons
REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) 3.5 Parameter Comparisons 3.5.1 Parameter comparisons The network parameters of MELSECNET (II) are deleted when the programmable controller type is changed with the GX Developer. After changing the programmable controller type, set the MELSECNET/H network parameters again.
Page 125: Parameter Change Example
REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) 3.5.2 Parameter change example The following shows an example of how to change the LB/LW, LX/LY network parameters when replacing the MELSECNET remote system with MELSECNET/H. The MELSECNET remote system can be used in the following operation modes. •...
Page 126 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) (a) Setting ranges of MELSECNET link parameters I/O area used by the host station Area for M/R Area for M/L I/O area used by the host station Area for M/R Area for M/L Area for M/L 310 320 341 360...
Page 127 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) (b) Setting ranges of MELSECNET/H link parameters 1) Setting ranges of network 1 link parameters I/O area used by the host station Area for M/L I/O area used by the host station Area for M/L Area for M/L...
Page 128 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) A MELSECNET/H module set as normal station requires network parameter setting. For replacement of MELSECNET (II) module mounted on the CPU module of the AnN/AnA/AnSCPU (excluding AnUS(H)CPU), newly set network parameters. The following shows parameters required on each station of MELSECNET/H.
Page 129 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) (c) MELSECNET master station The following shows the network parameter settings of the MELSECNET master station (A3ACPU). 1) Network parameter setting (A3ACPU: MELSECNET master station) 2) Network range assignment (A3ACPU: MELSECNET master station) 3) Network range assignment (A3ACPU: MELSECNET master station) - 17...
Page 130 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) (d) MELSECNET local station, remote I/O station As all stations perform cyclic communication according to the network range assignments of the master station (A3ACPU), the network range assignment parameters of local stations and remote I/O stations need not be set.
Page 131 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) 4) Refresh parameters (Q06UDVCPU: MELSECNET/H control station) - 19...
Page 132 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) (f) MELSECNET/H remote master station (network 2) The following shows the network parameter settings for when a station is replaced with a MELSECNET/H remote master station (network 2). 1) Network range assignment (Q06UDVCPU: MELSECNET/H remote master station) 2) Network range assignment (Q06UDVCPU: MELSECNET/H remote master station) 3) Refresh parameters (Q06UDVCPU: MELSECNET/H remote master station) - 20...
Page 133 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) An overall picture of CPU-side device assignments on the Q06UDVCPU to which the PLC to PLC network (control station) and remote I/O network (remote master station) is mounted can be checked at [Assignment image diagram] in the GX Works2 or GX Developer network parameters. After setting the parameters, make sure that assignments are correctly set.
Page 134 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) (g) MELSECNET/H normal station (network 1) The following shows the network parameter settings for when a station is replaced with a MELSECNET/H control station (network 1). The same parameter settings are required on all normal stations. 1) Network parameter setting (1 Ns 2: MELSECNET/H normal station) 2) Refresh parameters (1 Ns 2: MELSECNET/H normal station) - 22...
Page 135: Program Comparisons
REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) 3.6 Program Comparisons 3.6.1 Comparison of special relays M (SB) and special registers D (SW) (1) Master station special relays Special relays enabled when host station is the master station : Compatible, : Partial change required, ×...
Page 136 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) : Compatible, : Partial change required, × : Incompatible Special relay in the case of MELSECNET (II) Corresponding MELSECNET/H special relay master station Compat- Precautions for Number Name Description Number Name Description ibility replacement...
Page 137 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) (2) Master station special register Special register enabled when host station is the master station : Compatible, : Partial change required, × : Incompatible Special register in the case of MELSECNET (II) MELSECNET/H special register master station Compat-...
Page 138 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) : Compatible, : Partial change required, × : Incompatible Special register in the case of MELSECNET (II) MELSECNET/H special register master station Compat- Precautions for Number Name Description Number Name Description ibility replacement Accumulates and...
Page 139: Transient Instructions
REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) 3.6.2 Transient instructions (1) MELSECNET dedicated instruction Dedicated instructions that were used on MELSECNET must be replaced with the following dedicated instructions on MELSECNET/H. The following table shows a comparison between dedicated instructions on MELSECNET and dedicated instructions on MELSECNET/H.
Page 140: Replacement Precautions
REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) 3.7 Replacement Precautions The following shows the replacement precautions when replacing MELSECNET (II) with MELSECNET/H. (1) Cables For details on precautions for optical cables and coaxial cables, refer to Section 2.2.2 Cable performance comparisons.
Page 141 REPLACEMENT OF MELSECNET (II) AND /B (REMOTE I/O NETWORK) (3) Sequence program (a) Data separation prevention When two words (32 bits) or more of cyclic data (e.g. current value of the positioning module) are handled, the old data sometimes is mixed with the new data. To read/write cyclic data of two words or more in a single operation, set data separation prevention by the per-station block guarantee function.
Page 142: Chapter 4 Replacement Of The Melsecnet/10 (Plc To Plc Network)
REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) The Q series network modules support the MELSECNET/10 mode (functional and performance compatibility mode) and MELSECNET/H extended mode (high functionality and high-speed mode). This chapter describes the replacement using MELSECNET/10 mode that has the compatibility to the existing network and is used the A, AnS, QnA, and QnAS series CPU modules in combination.
Page 143: Performance Specifications Comparisons
REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) 4.2 Performance Specifications Comparisons 4.2.1 Module performance comparisons incompatible (1) Performance comparison of AJ71LP21/A1SJ71LP21/AJ71QLP21/A1SJ71QLP21 and QJ71LP21-25 (MELSECNET/10 mode) : Compatible, : Partial change required, ×: Incompatible Specifications Item Compatibility Precautions for replacement AJ71LP21 AJ71QLP21 QJ71LP21-25...
Page 144 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) (2) Performance comparison of AJ71QLP21S/A1SJ71QLP21S and QJ71LP21S-25 (MELSECNET/10 mode) : Compatible, : Partial change required, ×: Incompatible Specifications Item Compatibility Precautions for replacement QJ71LP21-25 AJ71LP21/A1SJ71LP21 (MELSECNET/10 mode) 8192 points Maximum number of link points per 8192 points network 8192 points...
Page 145 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) (3) Performance comparison of AJ71LP21G/AJ71QLP21G and QJ71LP21G (MELSECNET/10 mode) : Compatible, : Partial change required, ×: Incompatible Specifications Item Compatibility Precautions for replacement QJ71LP21G AJ71LP21G AJ71QLP21G (MELSECNET/10 mode) Maximum LX/LY 8192 points number of link 8192 points points per...
Page 146 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) (4) Performance comparison of AJ71LR21/A1SJ71LR21/AJ71QLR21/A1SJ71QLR21 and QJ71BR11 (MELSECNET/10 mode) : Compatible, : Partial change required, ×: Incompatible Specifications Item Compatibility Precautions for replacement AJ71LR21 AJ71QLR21 QJ71BR11 A1SJ71LR21 A1SJ71QLR21 (MELSECNET/10 mode) Maximum LX/LY 8192 points number of link 8192 points...
Page 147 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) Specifications Item Compatibility Precautions for replacement AJ71LR21 AJ71QLR21 QJ71BR11 A1SJ71LR21 A1SJ71QLR21 (MELSECNET/10 mode) • Diagnostic function for checking local link • Loop-back function due to error lines detection or broken cable • Prevention of system •...
Page 148 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) (5) Performance comparison of AJ71BR11/A1SJ71BR11/ AJ71QBR11/A1SJ71QBR11 and QJ71BR11 (MELSECNET/10 mode) : Compatible, : Partial change required, ×: Incompatible Specifications Item Compatibility Precautions for replacement AJ71BR11 AJ71QBR11 QJ72LP21G A1SJ71BR11 A1SJ71QBR11 (MELSECNET/10 mode) Maximum LX/LY 8192 points number of link...
Page 149: Cable Performance Comparisons
REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) 4.2.2 Cable performance comparisons (1) Optical fiber cable Overall distance and distance between stations do not differ depending on the optical fiber cable. For overall distance and distance between stations, refer to Section 4.2.1. (2) Coaxial cable (a) Overall distance : Compatible,...
Page 150 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) Remarks The following shows the extension method when a repeater unit for the A6BR10/A6BR10-DC type MELSECNET/10 coaxial bus system is used. For details, refer to the Repeater Unit for the MELSECNET/10 Coaxial Bus System type A6BR10/ A6BR10-DC User's Manual (IB-66499).
Page 151: Functional Comparisons
REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) 4.3 Functional Comparisons (1) A/AnS series : Compatible, : Partial change required, ×: Incompatible Description Compat- A/AnS series Q series Item Precautions for replacement ibility MELSECNET/10 module MELSECNET/H module Communication using B/W Performs communications with all stations using link (1:N relay and link register.
Page 152 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) Description Compat- A/AnS series Q series Item Precautions for replacement ibility MELSECNET/10 module MELSECNET/H module Treats the stations, which are to be connected in the Reserved station future, as reserved stations. function By specifying the stations, which are not connected, as reserved stations, communication error does not occur.
Page 153 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) (2) QnA/QnAS series : Compatible, : Partial change required, ×: Incompatible Description Compat- QnA/QnAS series Q series Item Precautions for replacement ibility MELSECNET/10 module MELSECNET/H module Communication Performs communications with all stations using link using B/W relay and link register.
Page 154 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) : Compatible, : Partial change required, ×: Incompatible Description Compat- QnA/QnAS series Q series Item Precautions for replacement ibility MELSECNET/10 module MELSECNET/H module For Universal model QCPU, the Switches link data refresh target to the standby network Simple dual-structured simple dual-structured system to continue data link when break causes error in regular...
Page 155: Switch Settings Comparisons
REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) 4.4 Switch Settings Comparisons : Compatible, : Partial change required, ×: Incompatible Description Q series Compat- Switch name Precautions for replacement A/AnS/QnA/QnAS series MELSECNET/H module ibility MELSECNET/10 module (MELSECNET/10 mode) • Set in GX Works2 or GX Developer network parameters.
Page 156: Parameter Comparisons
REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) 4.5 Parameter Comparisons (1) Parameter of control station : Compatible, : Partial change required, ×: Incompatible Description Parameter Q series Compat- A/AnS/QnA/QnAS series Precautions for replacement name MELSECNET/H module ibility MELSECNET/10 module (MELSECNET/10 mode) Network type Network type...
Page 157 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) (2) Parameter of normal station : Compatible, : Partial change required, ×: Incompatible Description Parameter Q series Compat- A/AnS/QnA/QnAS series Precautions for replacement name MELSECNET/H module ibility MELSECNET/10 module (MELSECNET/10 mode) Network type Network type Starting I/O No.
Page 158 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) (3) Parameter of standby station : Compatible, : Partial change required, ×: Incompatible Description Parameter Q series Compat- QnA/QnAS series Precautions for replacement name MELSECNET/H module ibility MELSECNET/10 module (MELSECNET/10 mode) Network type Network type Starting I/O No.
Page 159: Program Comparisons
REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) 4.6 Program Comparisons 4.6.1 Comparison of link special relay (SB)/link special register (SW) The table below shows only link special relay (SB) and link special register (SW) to be used in interlock program.
Page 160 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) : Compatible, : Partial change required, ×: Incompatible AnN/AnA/AnSCPU QCPU Compat- MELSECNET/10 module MELSECNET/H module Precautions for replacement ibility Number Name Description Number Name Description OFF : Not being executed ON : Forward loop Offline testing OFF : No response M9252...
Page 161 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) (2) AnU/AnUS(H)/QnA/QnASCPU The following device name and device No. are described in link device of internal MELSECNET/10 or MELSECNET/H module. Changing sequence program should be performed after checking the refreshed device of link device in refresh parameters.
Page 162: Comparison Of Dedicated Instructions
REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) 4.6.2 Comparison of dedicated instructions (1) A/AnSCPU : Compatible, : Partial change required, ×: Incompatible Description QCPU Compat- Precautions for Instruction name A/AnSCPU MELSECNET/H module ibility replacement MELSECNET/10 module (MELSECNET/10 mode) Instruction format differs. ZNRD instruction Reads the device data of other station.
Page 163 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) (3) Q series dedicated link instruction list The table below shows the dedicated link instructions usable in Q series. For instruction format of dedicated link instruction and precautions, refer to the following manual. •...
Page 164 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) : Can be used by both the control and normal stations, × : Cannot be used Execution Target station station Instruction Name Description QnA/ AnU/ QCPU QCPU QnAS AnUS(H) Receives the channel data sent with SEND by the interrupt program and immediately reads it to the CPU device.
Page 165 REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) : Can be used by both the control and normal stations, × : Cannot be used Execution Target station station Instruction Name Description QnA/ AnU/ QCPU QCPU QnAS AnUS(H) "Remote STOP" performed for other stations' CPU modules Network module Network module Channel 1...
Page 166: Other Precautions
REPLACEMENT OF THE MELSECNET/10 (PLC TO PLC NETWORK) 4.7 Other Precautions (1) Processing time The link scan time and link refresh time differ between the A/AnS/QnA/QnAS series and the Q series. For details on processing times, refer to the manual for the respective module. (2) A/AnS series replacement precautions Normal station of MELSECNET/H module requires network parameter setting.
Page 167: Chapter 5 Replacement Of The Melsecnet/10 (Remote I/O Network)
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.1 Replacing MELSECNET/10 with MELSECNET/H All stations of the existing A series are replaced with those of the Q series by changing MELSECNET/10 into MELSECNET/H. 5.1.1 List of MELSECNET/10 alternative models (1) Replacement of the A/AnS series Network type Station type...
Page 168 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) (2) Replacement of the QnA/QnAS series Network type Station type QnA/QnAS series Q series AJ71QLP21 QJ71LP21-25 A1SJ71QLP21 Remote master station AJ71QLP21S QJ71LP21S-25 A1SJ71QLP21S Optical loop AJ71QLP21G QJ71LP21G AJ72QLP25 QJ72LP25-25 Remote I/O station A1SJ72QLP25 AJ72QLP25G QJ72LP25G AJ71QLR21...
Page 169: Performance Specifications Comparisons
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.1.2 Performance specifications comparisons (1) Module performance comparisons (a) Performance comparison of remote master station 1) Performance comparison of AJ71LP21/A1SJ71LP21/AJ71QLP21/A1SJ71QLP21 and QJ71LP21-25 : Compatible, : Partial change required, × : Incompatible Specifications Item Compatibility Precautions for replacement AJ71LP21 AJ71QLP21...
Page 170 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) Specifications Item Compatibility Precautions for replacement AJ71LP21 AJ71QLP21 QJ71LP21-25 A1SJ71LP21 A1SJ71QLP21 32 points per slot (I/O Number of occupied I/O 32 points per slot (I/O assignment: special 32 points) assignment: intelli. 32 points points) Remote master station ...
Page 171 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 2) Performance comparison of AJ71QLP21S/A1SJ71QLP21S and QJ71LP21S-25 : Compatible, : Partial change required, × : Incompatible Specifications Compati- Item Precautions for replacement AJ71QLP21S bility QJ71LP21S-25 A1SJ71QLP21S LX/LY 8192 points Maximum number of 8192 points 16384 points link points per network 8192 points...
Page 172 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) Specifications Compati- Item Precautions for replacement AJ71QLP21S bility QJ71LP21S-25 A1SJ71QLP21S AJ71QLP21S: 32 points per slot (I/O assignment: 48 points 2 slots When the AJ71QLP21S is replaced, special 32 points) (I/O assignment: first half set the [Empty 16 points] of first half to A1SJ71QLP21S: Number of occupied I/O points...
Page 173 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 3) Performance comparison of AJ71LP21G/AJ71QLP21G and QJ71LP21G : Compatible, : Partial change required, × : Incompatible Specifications Item Compatibility Precautions for replacement AJ71LP21G AJ71QLP21G QJ71LP21G LX/LY 8192 points Maximum number 8192 points of link points per 16384 points network 8192 points...
Page 174 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 4) Performance comparison of AJ71LR21/A1SJ71LR21/AJ71QLR21/A1SJ71QLR21 and QJ71BR11 : Compatible, : Partial change required, × : Incompatible Specifications Item Compatibility Precautions for replacement AJ71LR21 AJ71QLR21 QJ71BR11 A1SJ71LR21 A1SJ71QLR21 LX/LY 8192 points Maximum number of link points per 8192 points 16384 points network...
Page 175 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) Remote master station  remote sub-master station, remote I/O station: 8192 points Remote sub-master station, remote I/O station  remote master station: 8192 points The remote master station includes the multiplexed remote master station and multiplexed remote sub-master station. For the multiplexed remote I/O network, one station in 32 stations of the remote I/O station is used for the multiplexed remote sub-master station.
Page 176 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5) Performance comparison of AJ71BR11/A1SJ71BR11/AJ71QBR11/A1SJ71QBR11 and QJ71BR11 : Compatible, : Partial change required, × : Incompatible Specifications Item Compatibility Precautions for replacement AJ71BR11 AJ71QBR11 QJ71BR11 A1SJ71BR11 A1SJ71QBR11 LX/LY 8192 points Maximum number of link points per 8192 points 16384 points network...
Page 177 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) (b) Performance comparison of remote I/O stations 1) Comparison between AJ72LP25/AJ72QLP25/A1SJ72QLP25 and QJ72LP25-25 : Compatible, : Partial change required, × : Incompatible Specifications Item Compatibility Precautions for replacement AJ72QLP25 AJ72LP25 QJ72LP25-25 A1SJ72QLP25 LX/LY 8192 points Maximum number of link points per...
Page 178 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) Remote master station  remote sub-master station, remote I/O station: 8192 points Remote sub-master station, remote I/O station  remote master station: 8192 points The remote master station includes the multiplexed remote master station and multiplexed remote sub-master station. When the X/Y numbers are duplicate, one side only is taken into consideration.
Page 179 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 2) Performance comparison of AJ72LP25G/AJ72QLP25G and QJ72LP25G : Compatible, : Partial change required, × : Incompatible Specifications Item Compatibility Precautions for replacement AJ72LP25 AJ72QLP25G QJ72LP25G LX/LY 8192 points Maximum number 8192 points of link points per 16384 points network 8192 points...
Page 180 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 3) Performance comparison of AJ72LR25/AJ72QLR25/A1SJ72QLR25 and QJ72BR15 : Compatible, : Partial change required, × : Incompatible Specifications Item AJ72QLR25 Compatibility Precautions for replacement AJ72LR25 QJ72BR15 A1SJ72QLR25 LX/LY 8192 points Maximum number of link points per 8192 points 16384 points network...
Page 181 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 4) Performance comparison of AJ72BR15/AJ72QBR15/A1SJ72QBR15 and QJ72BR15 : Compatible, : Partial change required, × : Incompatible Specifications Item AJ72QBR15 Compatibility Precautions for replacement AJ72BR15 QJ72BR15 A1SJ72QBR15 LX/LY 8192 points Maximum number of link points per 8192 points 16384 points network...
Page 182 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) (2) Cable performance comparisons (a) Optical fiber cable 1) Overall distance The overall distance (30km) does not differ according to the optical fiber cable. 2) Distance between stations • SI optical fiber cable : Compatible, : Partial change required, ×...
Page 183 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) Remarks The following shows the extension method when a repeater unit for the A6BR10/A6BR10-DC type MELSECNET/10 coaxial bus system is used. For details, refer to the Repeater Unit for the MELSECNET/10 Coaxial Bus System type A6BR10/ A6BR10-DC User's Manual (IB-66499).
Page 184: Functional Comparisons
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.1.3 Functional Comparisons (1) A/AnS series : Compatible, : Partial change required, × : Incompatible Description Compat- A/AnS series Q series Item Precautions for replacement ibility MELSECNET/10 module MELSECNET/H module Communicating with Performs communications with the I/O module of the I/O module remote I/O station using X/Y (LX/LY).
Page 185 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) : Compatible, : Partial change required, × : Incompatible Description Compat- Item A/AnS series Q series Precautions for replacement ibility MELSECNET/10 module MELSECNET/H module Returns the station disconnected from data link to the Automatic return system when it goes to normal status and restarts data function...
Page 186 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) : Compatible, : Partial change required, × : Incompatible Description Compat- QnA/QnAS series Q series Item Precautions for replacement ibility MELSECNET/10 module MELSECNET/H module Communicates only when communication requests are Transient issued between each stations. transmission function (Communication using dedicated link instruction and GX Works2/GX Developer.)
Page 187 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) Description Compat- QnA/QnAS series Q series Item Precautions for replacement ibility MELSECNET/10 module MELSECNET/H module Returns the station disconnected from data link to the Automatic return system when it goes to normal status and restarts data function link.
Page 188: Switch Setting Comparisons
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.1.4 Switch setting comparisons (1) Switch settings comparisons of remote master station : Compatible, : Partial change required, × : Incompatible Description Compat- Switch name A/AnS/QnA/QnAS series Q series Precautions for replacement ibility MELSECNET/10 module MELSECNET/H module •...
Page 189 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) (2) Remote I/O station switch settings comparisons : Compatible, : Partial change required, × : Incompatible Description Compat- Switch name A/AnS/QnA/QnAS series Q series Precautions for replacement ibility MELSECNET/10 module MELSECNET/H module [Using QJ72LP25-25] Sets the mode.
Page 190: Parameter Comparisons
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.1.5 Parameter comparisons (1) Parameter of remote master station : Compatible, : Partial change required, × : Incompatible Description Parameter Compat- A/AnS/QnA/QnAS series Q series Precautions for replacement name ibility MELSECNET/10 module MELSECNET/H module Network type Network type Starting I/O No.
Page 191 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) (2) Parameter of multiplexed remote master station : Compatible, : Partial change required, × : Incompatible Description Parameter Compat- QnA/QnAS series Q series Precautions for replacement name ibility MELSECNET/10 module MELSECNET/H module Network type Network type Starting I/O No.
Page 192 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) (3) Parameter of multiplexed remote sub-master station : Compatible, : Partial change required, × : Incompatible Description Parameter Compat- QnA/QnAS series Q series Precautions for replacement name ibility MELSECNET/10 module MELSECNET/H module Network type Network type Starting I/O No.
Page 193 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) (4) Parameter of parallel remote master station : Compatible, : Partial change required, × : Incompatible Description Parameter Compat- QnA/QnAS series Q series Precautions for replacement name ibility MELSECNET/10 module MELSECNET/H module Network type Starting I/O No.
Page 194 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) (5) Parameter of parallel remote sub-master station : Compatible, : Partial change required, × : Incompatible Description Parameter Compat- QnA/QnAS series Q series Precautions for replacement name ibility MELSECNET/10 module MELSECNET/H module Network type Starting I/O No.
Page 195: Program Comparisons
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.1.6 Program comparisons (1) Comparison of link special relay (SB)/link special register (SW) The table below shows only link special relay (SB) and link special register (SW) to be used in interlock program. The following device name and device No.
Page 196: Comparison Of Dedicated Instruction
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.1.7 Comparison of dedicated instruction (1) A/AnS series : Compatible, : Partial change required, × : Incompatible Description Compat- Precautions for Instruction name A/AnS series Q series ibility replacement MELSECNET/10 module MELSECNET/H module Reads data from the buffer Reads data from the buffer ZNFR instruction cannot...
Page 197 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) (3) Q series dedicated link instruction list The table below shows the dedicated link instructions usable in Q series. For instruction format of dedicated link instruction and precautions, refer to the following manual. •...
Page 198 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) (b) For multiplexed remote master station and multiplexed remote sub-master station : Can be used, × : Cannot be used Execution Target station station Multiplexed Multiplexed Instruction Name Description QnPH QnPRH remote remote master sub-master station...
Page 199 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) : Can be used, × : Cannot be used Execution Target station station Multiplexed Multiplexed Instruction Name Description QnPH QnPRH remote remote master sub-master station station Receives the channel data, which was sent by SEND, within an interrupt program and reads that data to the CPU device immediately.
Page 200 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) : Can be used, × : Cannot be used Execution Target station station Multiplexed Multiplexed Instruction Name Description QnPH QnPRH remote remote master sub-master station station Performs "remote STOP" to the CPU module of the other station. Network module Network module Channel 1 Channel 2...
Page 201: Other Precautions
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.1.8 Other precautions (1) Remote I/O network replacement precautions Replace all remote I/O stations with Q series MELSECNET/H modules when the CPU module on the remote master station is replaced with a Q series CPU module On the MELSECNET/H remote I/O network, the A/AnS/QnA/QnAS series MELSECNET/10 module and the Q series MELSECNET/H module cannot be used in combination.
Page 202: Gradually Replacing A Series Remote I/O Stations With Q Series Remote I/O Stations
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.2 Gradually replacing A series remote I/O stations with Q series remote I/O stations Use the existing A/AnS/QnA/QnAS series master stations without any change, and gradually replace the existing remote I/O stations with Q series stations by each station. For network, MELSECNET/10 can be continuously used by utilizing Q series MELSECNET/H modules in MELSECNET/10 mode, and thus Q series remote I/O stations can be used together with remaining A/ AnS/QnA/QnAS remote I/O stations.
Page 203 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) (2) Replacement of the QnA/QnAS series Network type Station type QnA/QnAS series Q series (alternative module) AJ71QLP21 A1SJ71QLP21 Remote master AJ71QLP21S Replacement not required station A1SJ71QLP21S AJ71QLP21G Optical loop AJ72QLP25 QJ72LP25-25 (MELSECNET/10 A1SJ72QLP25 mode) Remote I/O station QJ72LP25G (MELSECNET/10...
Page 204: Module Performance Specifications Comparisons
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.2.2 Module performance specifications comparisons AJ72LP25/AJ72QLP25/A1SJ72QLP25 and QJ72LP25-25 (MELSECNET/10 Comparison of mode) : Compatible, : Partial change required, ×: Incompatible Specifications Item Compatibility Precautions for replacement AJ72QLP25 QJ72LP25-25 AJ72LP25 A1SJ72QLP25 (MELSECNET/10 mode) LX/LY 8192 points Maximum number of link points per...
Page 205 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) (2) Comparison of AJ72LP25G/AJ72QLP25G and QJ72LP25G (MELSECNET/10 mode) : Compatible, : Partial change required, × : Incompatible Specifications Item Compatibility Precautions for replacement QJ72LP25G AJ72LP25G AJ72QLP25G (MELSECNET/10 mode) LX/LY 8192 points Maximum number of link points per 8192 points network...
Page 206 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) (3) Comparison of AJ72BR15/AJ72QBR15/A1SJ72QBR15 and QJ72BR15 (MELSECNET/10 mode) : Compatible, : Partial change required, × : Incompatible Specifications Item Compatibility Precautions for replacement AJ72QBR15 QJ72BR15 AJ72BR15 A1SJ72QBR15 (MELSECNET/10 mode) LX/LY 8192 points Maximum number of link points per 8192 points network...
Page 207: Functional Comparisons
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.2.3 Functional comparisons To use a MELSECNET/H remote I/O module (MELSECNET/10 mode), the CPU module on the master station must be an AnU/AnUS/QnA/QnAS series module. For details on functions of a remote I/O module, refer to a manual for the CPU module used on the master station because the functions differ depending on which CPU module is used on the master station.
Page 208: Switch Setting Comparisons
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.2.4 Switch setting comparisons (1) Switch setting comparisons of remote master stations The switch setting change is not required because the remote master station is not replaced. (2) Switch setting comparisons of remote I/O stations Description Switch name Compatibility...
Page 209: Parameter Comparisons
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.2.5 Parameter comparisons (1) Parameters of remote master station Basically, the parameter change is not required because A/AnS/QnA/QnAS series modules are continuously used for the remote master station. However, for a Q series MELSECNET/H remote I/O module (MELSECNET/10 mode), some parameters must be set at the remote I/O station instead of at the master station, and therefore the setting change of an existing module at the master station is required.
Page 210: Program Comparisons
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.2.6 Program comparisons This section describes how to modify the existing programs when replacing MELSECNET/10 remote I/O stations with MELSECNET/H (MELSECNET/10 mode) remote I/O stations. (1) Link special relay (SB)/link special register Program modifications related to link special relay (SB) and link special register (SW) are not required because the link special relay (SB) and link special register (SW) of the CPU module on the master station are used.
Page 211 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) I/O assignments of the remote I/O station (set in the network parameter at the remote I/O station after the replacement) The address change is not required when the number of occupied points and start XY address are set on the remote I/O station side.
Page 212 REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) (3) Utilizing existing programs If the system configurations before and after the replacement are the same, program modifications are not required. When an intelligent function module is mounted on the remote I/O station, the buffer memory read or write functions using the dedicated link instruction of the CPU module on the master station.
Page 213: Last Stage Of The Replacement
REPLACEMENT OF THE MELSECNET/10 (REMOTE I/O NETWORK) 5.2.7 Last stage of the replacement This section describes the last stage of the step-by-step replacement of the MELSECNET/10 remote I/O stations with the MELSECNET/H remote I/O stations. The replacement is conducted by using the MELSECNET/10 mode of MELSECNET/H remote I/O modules.
Page 214 REPLACEMENT OF CC-LINK REPLACEMENT OF CC-LINK 6.1 List of CC-Link Alternative Models (1) Replacement of the A/AnS series A/AnS series Alternative models AJ61BT11 QJ61BT11N A1SJ61BT11 (2) Replacement of the QnA/QnAS series QnA/QnAS series Alternative models AJ61QBT11 QJ61BT11N A1SJ61QBT11 The number of mountable CC-Link modules depending on Q series CPU module type is as follows: Universal model QCPU: 64 Up to eight modules can be set using parameters of GX Works2 or GX Developer.
Page 215 REPLACEMENT OF CC-LINK 6.2 Performance Specifications Comparisons 6.2.1 Module performance comparisons (1) A/AnS series : Compatible, : Partial change required, × : Incompatible Specifications Compat- Precautions for Item AJ61BT11/A1SJ61BT11 QJ61BT11N ibility replacement Can be selected from 156kbps/625kbps/2.5Mbps/5Mbps/ Transmission speed 10Mbps. Max.
Page 216 REPLACEMENT OF CC-LINK (2) QnA/QnAS series : Compatible, : Partial change required, × : Incompatible Specifications Compat- Precautions for Item AJ61QBT11/A1SJ61QBT11 QJ61BT11N ibility replacement Can be selected Transmission speed from 156kbps/625kbps/2.5Mbps/5Mbps/10Mbps. Max. cable overall distance Differs depending on the transmission speed. (Max.
Page 217 REPLACEMENT OF CC-LINK 6.2.2 Cable performance comparisons CC-Link dedicated cable used on the A/AnS/QnA/QnAS series can be also used on the Q series. For specifications of CC-Link dedicated cable, refer to CC-Link Partner Association home page: www.cc-link.org...
Page 218 REPLACEMENT OF CC-LINK 6.3 Functional Comparisons (1) A/AnS series : Compatible, : Partial change required, × : Incompatible Specifications Compat- Precautions for Item AJ61BT11/A1SJ61BT11 QJ61BT11N ibility replacement Communication The communication of ON/OFF information with remote I/O between master station station is performed. and remote I/O station Communication The communication of ON/OFF information and numerical data...
Page 219 REPLACEMENT OF CC-LINK : Compatible, : Partial change required, × : Incompatible Specifications Compat- Precautions for Item AJ61BT11/A1SJ61BT11 QJ61BT11N ibility replacement The following tests can be The specification method performed. The following tests can be of hardware test/line test • Hardware test: performed.
Page 220 REPLACEMENT OF CC-LINK (2) QnA/QnAS series : Compatible, : Partial change required, × : Incompatible Specifications Compat- Precautions for Item AJ61QBT11/A1SJ61QBT11 QJ61BT11N ibility replacement Communication The communication of ON/OFF information with remote I/O between master station station is performed. and remote I/O station Communication The communication of ON/OFF information and numerical data between master and...
Page 221 REPLACEMENT OF CC-LINK : Compatible, : Partial change required, × : Incompatible Specifications Compat- Precautions for Item ibility replacement AJ61QBT11/A1SJ61QBT11 QJ61BT11N The following tests can be The specification method performed. The following tests can be of hardware test/line test • Hardware test: performed.
Page 222 REPLACEMENT OF CC-LINK 6.4 Switch Settings Comparisons (1) A/AnS series : Compatible, : Partial change required, × : Incompatible Specifications Compat- Precautions for Switch name AJ61BT11/A1SJ61BT11 QJ61BT11N ibility replacement Sets the station No. of the module. • For remote net mode Sets the station No.
Page 223 REPLACEMENT OF CC-LINK (2) QnA/QnAS series : Compatible, : Partial change required, × : Incompatible Specifications Compat- Precautions for Switch name AJ61QBT11/A1SJ61QBT11 QJ61BT11N ibility replacement Sets the station No. of the module. • For remote net mode Sets the station No. of the Master station: 0 module.
Page 224 REPLACEMENT OF CC-LINK 6.5 Parameter Comparisons (1) A/AnS series : Compatible, : Partial change required, × : Incompatible Specifications Compat- Precautions for Parameter name AJ61BT11/A1SJ61BT11 QJ61BT11N ibility replacement Newly set the parameter with GX Works2/GX Developer or the dedicated Set this parameter with the Set this parameter with GX instruction (RLPASET sequence program (TO...
Page 225: Comparison Of I/O Signals
REPLACEMENT OF CC-LINK 6.6 Program Comparisons 6.6.1 Comparison of I/O signals (1) A/AnS series (a) Input signal : Compatible, : Partial change required, × : Incompatible Signal name Compat- Input signal Precautions for replacement ibility AJ61BT11/A1SJ61BT11 QJ61BT11N Module error Module error Data link status at host station Data link status at host station Delete the sequence program of the section...
Page 226 REPLACEMENT OF CC-LINK (b) Output signal : Compatible, : Partial change required, × : Incompatible Signal name Compat- Output signal Precautions for replacement AJ61BT11/A1SJ61BT11 QJ61BT11N ibility Refreshed automatically. Delete the sequence Refresh specification Prohibited to use program of the section corresponding to the function.
Page 227 REPLACEMENT OF CC-LINK (2) QnA/QnAS series (a) Input signal : Compatible, : Partial change required, × : Incompatible Signal name Compat- Input signal Precautions for replacement ibility AJ61QBT11/A1SJ61QBT11 QJ61BT11N Module error Module error Data link status at host Data link status at host station station Delete the sequence program of the section Parameter setting status...
Page 228 REPLACEMENT OF CC-LINK (b) Output signal : Compatible, : Partial change required, × : Incompatible Signal name Compat- Output signal Precautions for replacement AJ61QBT11/A1SJ61QBT11 QJ61BT11N ibility Refreshed automatically. Delete the sequence Refresh specification Prohibited to use program of the section corresponding to the function.
Page 229: Buffer Memory Comparisons
REPLACEMENT OF CC-LINK 6.6.2 Buffer memory comparisons (1) A/AnS series Buffer memory is divided into bank0 to bank2 on the A/AnS series, but it is one area on the Q series. Bank is switched with ON/OFF of Y (n+1)C, Y(n+1)D. Buffer memory address of the Q series is shown in parenthesis, as buffer memory addresses of communication buffer and automatic updating buffer are different.
Page 230 REPLACEMENT OF CC-LINK (2) QnA/QnAS series : Compatible, : Partial change required, × : Incompatible Buffer memory address Buffer memory name Compat- Precautions for replacement AJ61QBT11/ ibility Hex. Dec. QJ61BT11N A1SJ61QBT11 Parameter information Parameter information to 5F 0 to 95 area area to 7F...
Page 231: Comparison Of Link Special Relay (Sb)/Link Special Register (Sw)
REPLACEMENT OF CC-LINK 6.6.3 Comparison of link special relay (SB)/link special register (SW) (1) A/AnS series The following table shows SB/SW which have different application on the A series and the Q series. (a) Link special relay (SB) : Compatible, : Partial change required, ×...
Page 232 REPLACEMENT OF CC-LINK : Compatible, : Partial change required, × : Incompatible Name Compat- Number Precautions for replacement AJ61BT11/A1SJ61BT11 QJ61BT11N ibility The mode is set on the Q series using the network parameters. SB0069 Module mode (The setting can be checked in SW0060.) Setting status of block Added on the Q series and...
Page 233 REPLACEMENT OF CC-LINK (b) Link special register (SW) : Compatible, : Partial change required, × : Incompatible Name Compat- Number Precautions for replacement AJ61BT11/A1SJ61BT11 QJ61BT11N ibility Dedicated instruction retry SW000B count setting Added on the Q series and Specification of remote device replacement is not applied.
Page 234 REPLACEMENT OF CC-LINK (2) QnA/QnAS series The following table shows SB/SW that have different applications on the QnA/QnAS series and the Q series. (a) Link special relay (SB) : Compatible, : Partial change required, × : Incompatible Name Compat- Number Precautions for replacement AJ61QBT11/A1SJ61QBT11 QJ61BT11N...
Page 235 REPLACEMENT OF CC-LINK : Compatible, : Partial change required, × : Incompatible Name Compat- Number Precautions for replacement AJ61QBT11/A1SJ61QBT11 QJ61BT11N ibility The mode is set on the Q series using the network parameters. SB0069 Module mode (The setting can be checked in SW0060.) Setting status of block SB006F...
Page 236 REPLACEMENT OF CC-LINK (b) Link special register (SW) : Compatible, : Partial change required, × : Incompatible Name Compat- Number Precautions for replacement AJ61QBT11/A1SJ61QBT11 QJ61BT11N ibility Dedicated instruction retry SW000B count setting Specification of remote device SW0014 to SW0017 station to be initialized. Automatic CC-Link startup SW0052 execution result...
Page 237: Other Precautions
REPLACEMENT OF CC-LINK 6.7 Other Precautions This section describes other precautions. (1) Peripheral device connection module When AJ65BT-G4 type peripheral connection module is used on the A/AnS/QnA/QnAS series, replace it with AJ65BT-G4-S3 type peripheral connection module. AJ65BT-G4 type peripheral connection module cannot be used on the Q series. (2) Processing time The link scan time and link refresh time differ between the A/AnS/QnA/QnAS series and the Q series.
Page 238: Parameter Setting Example
REPLACEMENT OF CC-LINK 6.8 Parameter Setting Example The following describes an example how to replace the system in which parameters were set using sequence program (TO instruction) on the A/AnS series with the system in which parameters are set using GX Works2 or GX Developer on the Q series. This section explains the above using the following system configuration example.
Page 239 REPLACEMENT OF CC-LINK Station No.1 setting Station No.2 setting Station No.4 setting Station No.8 setting Station No.9 setting Station No.1 setting 1 scan ON Refresh after RUN specification Module Module error ready Data link startup Startup Data link normal startup completion Startup Error...
Page 240: Parameter Setting Example On The Q Series
REPLACEMENT OF CC-LINK 6.8.2 Parameter setting example on the Q series The following shows an example of parameter setting using GX Works2. - 27...
Page 241: Appendices
APPENDICES Appendix 1 External Dimensions For external dimensions of modules shown in this handbook, refer to the user's manual for each module. Appendix 2 Spare parts storage (1) The general specifications of programmable controllers are as follows. Please do not store spare parts under a high temperature or high humidity condition, even within the range guaranteed by the specifications.
Page 242 [Countermeasures for preventing aluminum electrolytic capacitor characteristics deterioration] Apply the rated voltage to the aluminum electrolytic capacitor for several hours to activate it. Or, rotate products at the periodic inspection (in every 1 to 2 years). [Reference] The life of an aluminum electrolytic capacitor, even if not used, under a normal temperature decreases approximately at 1/4 speed of the case when it is energized.
Page 243: Appendix 3 Related Manuals
Appendix 3 Related Manuals Appendix 3.1 Replacement handbooks (1) Transition guide Manual name Manual number Model code MELSEC-A/QnA Series Transition Guide L08077E MELSEC-AnS/QnAS Series Transition Guide L08236E (2) Transition from MELSEC-A/QnA (large type) to Q series handbook Manual name Manual number Model code Transition from MELSEC-A/QnA (Large Type) Series to Q L08043ENG...
Page 244: Appendix 3.2 A/Ans Series
Appendix 3.2 A/AnS series Manual name Manual number Model code Type MELSECNET, MELSECNET/B Data Link System IB-66350 13JF70 Reference Manual Type MELSECNET/10 Network System Reference Manual IB-66440 1JE33 (PLC to PLC network) Type MELSECNET/10 Network System (Remote I/O network) SH-3509 13JE72 Reference Manual CC-Link System Master/Local Module Type AJ61BT11/...
Page 245 WARRANTY Please confirm the following product warranty details before using this product. 1. Gratis Warranty Term and Gratis Warranty Range If any faults or defects (hereinafter "Failure") found to be the responsibility of Mitsubishi occurs during use of the product within the gratis warranty term, the product shall be repaired at no cost via the sales representative or Mitsubishi Service Company.
Page 246 Ethernet is a registered trademark of Fuji Xerox Co., Ltd. in Japan. Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. Unicode is either a registered trademark or a trademark of Unicode, Inc. in the United States and other countries. The company names, system names and product names mentioned in this manual are either registered trademarks or trademarks of their respective companies.
Page 248 Programmable Controller New publication, effective Apr. 2018. L(NA)08048ENG-G(1804)MEE Specifications are subject to change without notice.

This manual is also suitable for:

Melsec-qna series Melsec-ans series Melsec-qnas series Melsec-q series

Mitsubishi Electric MELSEC-A Series Manual

Chapter 1 Introduction

Chapter 2 Replacement of Melsecnet (II) and /B (Plc to Plc Network)

Chapter 6 Replacement of CC-Link

Chapter 3 Replacement of Melsecnet (II) and /B (Remote I/O Network)

Chapter 4 Replacement of the Melsecnet/10 (Plc to Plc Network)

Chapter 5 Replacement of the Melsecnet/10 (Remote I/O Network)

Appendices

Appendix 1 External Dimensions

Appendix 2 Spare Parts Storage

Appendix 3 Related Manuals

Appendix 3.1 Replacement Handbooks

Appendix 3.2 A/Ans Series

Appendix 3.3 Qna/Qnas Series

Appendix 3.4 Q Series

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Summary of Contents for Mitsubishi Electric MELSEC-A Series

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