Mitsubishi Melsec-L Series User Manual
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Mitsubishi Melsec-L Series User Manual

Mitsubishi Melsec-L Series User Manual

Cc-link/lt master module
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  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS (Read these precautions before using this product.) Before using this product, please read this manual and the relevant manuals carefully and pay full attention to safety to handle the product correctly. The precautions given in this manual are concerned with this product only. For the safety precautions of the programmable controller system, refer to the user's manual for the CPU module used.
  • Page 4 [Design Precautions] WARNING ● If a communication cable is disconnected, the network becomes unstable, causing communication failure in multiple stations. Configure an interlock circuit in the program to ensure that the entire system will always operate safely even if communications fail. Incorrect output or malfunction due to a communication failure may result in an accident.
  • Page 5 [Wiring Precautions] CAUTION ● Do not install the control lines or communication cables together with the main circuit lines or power cables. Failure to do so may result in malfunction due to noise. ● Place the cables in a duct or clamp them. If not, dangling cable may swing or inadvertently be pulled, resulting in damage to the module or cables or malfunction due to poor contact.

  • Page 6: Conditions Of Use For The Product

    PRODUCT in one or more of the Prohibited Applications, provided that the usage of the PRODUCT is limited only for the specific applications agreed to by Mitsubishi and provided further that no special quality assurance or fail-safe, redundant or other safety features which exceed the general specifications of the PRODUCTs are required.

  • Page 7: Introduction

    Before using this product, please read this manual and the relevant manuals carefully and develop familiarity with the functions and performance of the MELSEC-L series programmable controller to handle the product correctly. When applying the program examples introduced in this manual to an actual system, ensure the applicability and confirm that it will not cause system control problems.

  • Page 8: Relevant Manuals

    RELEVANT MANUALS (1) CPU module user's manual Manual name Description MELSEC-L CPU Module User's Manual Specifications of the CPU modules, power supply modules, display unit, SD (Hardware Design, Maintenance and Inspection) memory cards, and batteries, information on how to establish a system, ...
  • Page 9 Memo...

  • Page 10: Table Of Contents

    CONTENTS CONTENTS SAFETY PRECAUTIONS ............. 1 CONDITIONS OF USE FOR THE PRODUCT .
  • Page 11 CHAPTER 8 TROUBLESHOOTING Condition of Each Station in Case of Failure Station Status if an Error Occurs ... . Visual Check............. . . Troubleshooting of the Master Station .

  • Page 12: Manual Page Organization

    MANUAL PAGE ORGANIZATION In this manual, pages are organized and the symbols are used as shown below. The following illustration is for explanation purpose only, and should not be referred to as an actual documentation. "" is used for screen names and items. The chapter of the current page is shown.

  • Page 13: Terms

    This station is controlled by the master station. GX Works2 The product name of the software package for the MELSEC programmable controllers A MELSEC-L series module that has functions other than input and output, such as an A/D Intelligent function module converter module and D/A converter module Dedicated power supply Devices that supply power to a CC-Link/LT system.

  • Page 14: Packing List

    PACKING LIST The following items are included in the package of this product. Before use, check that all the items are included. LJ61CL12 LJ61CL12 Before Using the Product...

  • Page 15: Chapter 1 Characteristics Of Cc-Link/Lt System

    CHAPTER 1 CHARACTERISTICS OF CC-Link/LT SYSTEM CHAPTER 1 CHARACTERISTICS OF CC-Link/LT SYSTEM This chapter describes the features and application of a CC-Link/LT system. CC-Link/LT System A CC-Link/LT system is a wire-saving network system used inside a control panel and equipment, making complex wiring unnecessary and preventing incorrect wiring.

  • Page 16: Features

    Features This section describes features of CC-Link/LT. (1) Easy connection/disconnection of communication cable By using dedicated connectors, communication cables can be connected/disconnected with one simple motion. This allows modules to be easily extended, added, and changed. Using dedicate flat cables, VCTF cables, and flexible cables leads to reduction in wiring work and cable cost. (2) No parameter settings Network parameters for operating a CC-Link/LT system need not to be set.

  • Page 17: Chapter 2 Part Names

    CHAPTER 2 PART NAMES CHAPTER 2 PART NAMES This chapter describes part names of the master module. Name Description Module joint lever A lever to fix module connection LED indicator An indicator to check the module status Description ON: Normal module operation OFF: Hardware failure ...
  • Page 18 Name Description A switch to configure settings including the number of occupied I/O points and the Operation setting switch transmission speed of the master module (default: OFF) Number of occupied 16 pts. 32 pts. 48 pts. 64 pts. 128 pts. 256 pts.

  • Page 19: Chapter 3 Specifications

    CHAPTER 3 SPECIFICATIONS CHAPTER 3 SPECIFICATIONS This chapter describes specifications of the master module. General Specifications For the general specifications of the master module, refer to the following. Safety Guidelines provided with the CPU module or head module...

  • Page 20: Performance Specifications

    Performance Specifications (1) Module specifications The following table lists the performance specifications of the master module. Item Specifications Point mode 4-point mode 8-point mode 16-point mode Maximum link points 256 points 512 points 1024 points (the same I/O address used) (512 points) (1024 points) (2048 points)
  • Page 21 CHAPTER 3 SPECIFICATIONS (2) Network wiring specifications The following table lists the network wiring specifications of CC-Link/LT. Item Specifications Remarks ⎯ Transmission speed 2.5Mbps 625kbps 156kbps ⎯ Station-to-station distance No limit Maximum number of modules on a ⎯ branch line The cable length between terminating Maximum length of the trunk line 100m...

  • Page 22: I/O Signal List

    I/O Signal List This section describes I/O signals of the master module for the CPU module. Input signals (X) are assigned to the remote input area, and output signals (Y) are assigned to the remote output area. No special I/O signal is required to operate the master module. I/O assignments vary depending on the point mode setting.
  • Page 23 CHAPTER 3 SPECIFICATIONS (2) In 8-point mode The following tables list I/O signals in 8-point mode. Remote input (X) Input number XnF to Xn0 Station No.2 Station No.1 X(n+1F)F to X(n+1F)0 Station No.64 Station No.63 Remote output (Y) Output number YnF to Yn0 Station No.2 Station No.1...

  • Page 24: Buffer Memory List

    Buffer Memory List The following table lists the buffer memory areas of the master module. For details, refer to Page 68, Appendix 1. Address Item Availability to 3 0 to 3 Remote station connection information Read-only to 7 4 to 7 Faulty station information Read-only to B...

  • Page 25: Chapter 4 Procedure Before Operation

    CHAPTER 4 PROCEDURE BEFORE OPERATION CHAPTER 4 PROCEDURE BEFORE OPERATION This chapter describes a procedure from module installation to a data link start. Start Module connection Checkbox Page 25, Section 5.1 Connect the master module. Remote module installation User's manual for the remote Install a remote module into a control panel or equipment.
  • Page 26 From the previous page Checkbox System power-on After checking the following items, power on the system. Modules are correctly installed. A voltage input to the dedicated power supply or power supply adapter is 24VDC. The CPU module is in the STOP status. The remote station numbers are not duplicated.

  • Page 27: Chapter 5 System Configuration

    CHAPTER 5 SYSTEM CONFIGURATION CHAPTER 5 SYSTEM CONFIGURATION This chapter describes a CC-Link/LT system configuration. Overall Configuration To one master station, up to 64 remote stations can be connected when the conditions on network wiring specifications are met. ( Page 19, Section 3.2 (2)) (1) System configuration using the master module (a) When connected to a CPU module Display unit...
  • Page 28 (2) CC-Link/LT system configuration Master module Terminating resistor Power supply adapter General power supply 24VDC Terminating resistor Partner Remote modules product ● Remote stations need not to be connected in station number order. ● Remote station numbers are not necessarily consecutive. (Leaving any station number out does not cause a data link error.)

  • Page 29: Applicable System

    CHAPTER 5 SYSTEM CONFIGURATION Applicable System This section describes a MELSEC-L series system using a master module. (1) Number of connectable modules For the number of connectable modules, refer to the following. MELSEC-L CPU Module User's Manual (Hardware Design, Maintenance and Inspection)
  • Page 30 (2) Number of branch line levels Up to two branch line levels can be configured in a CC-Link/LT system. Three or more branch line levels cannot be configured. Remote station Remote station The third branch line level cannot be configured. Trunk line Remote Branch line...
  • Page 31 CHAPTER 5 SYSTEM CONFIGURATION (b) At momentary power failure of remote I/O modules If momentary power failure occurs in the power supplied to remote I/O modules (24VDC), incorrect input may occur. • Cause The hardware of the remote I/O module converts the supplied power of 24V DC into 5V DC inside the module and uses it for its own operation.
  • Page 32 • Measures against incorrect input From the same power source, supply power to the power supply module, the stabilized power supply and the external supply power for input detection. Use the same power supply for a power supply module, stabilized power supply, and input external power supply (AC input).
  • Page 33 CHAPTER 5 SYSTEM CONFIGURATION • A remote station may occupy multiple station numbers depending on the point mode setting and the number of I/O points of the remote station. When using a remote station having the number of I/O points of eight or more, check that the station number of the remote station is not duplicated with that of the next station.

  • Page 34: Chapter 6 Installation And Wiring

    CHAPTER 6 INSTALLATION AND WIRING This chapter describes installation and wiring of the master module. Installation Environment and Installation Position of the Module For precautions for installation environment and installation position of the module, refer to the following. MELSEC-L CPU Module User's Manual (Hardware Design, Maintenance and Inspection) MELSEC-L CC-Link IE Field Network Head Module User's Manual...

  • Page 35: Point Mode Setting And The Number Of Occupied I/O Points Setting

    CHAPTER 6 INSTALLATION AND WIRING Point Mode Setting and the Number of Occupied I/O Points Setting This section describes concepts of the point mode setting and the number of occupied I/O points setting required for system configuration. The number of points that the master station can control per remote station occupying one station is set for the point mode setting.
  • Page 36 • Even if the same remote module is used, the number of occupied stations varies depending on the point mode setting. When 4-point mode is set for a 16-point module, for example, four stations are occupied. In the same way, two stations are occupied in 8-point mode and one station is occupied in 16-point mode.
  • Page 37 CHAPTER 6 INSTALLATION AND WIRING I/O number assignment is described using the I/O assignment table for 8-point mode in Page 75, Appendix 5. The following table lists the I/O number assignment when 8-point mode is set and 64 points is set for the number of occupied I/O points in the system shown in the example on the previous page.

  • Page 38: Connecting Modules With Cables Connecting Modules Using Connection Cables

    Connecting Modules with Cables Connecting Modules Using Connection Cables This section describes how to connect modules using connection cables in a CC-Link/LT system. • The cables can be wired regardless of station number order. • Install the master module on either end of the trunk line. Connect a terminating resistor on the master module side within 20cm from the master module.

  • Page 39: Connecting A Dedicated Flat Cable Connector

    CHAPTER 6 INSTALLATION AND WIRING 6.3.1 Connecting a dedicated flat cable connector This section describes how to connect a dedicated flat cable connector. (1) Components The components are shown below. Component 1: Cover Component 2: Body Component 3: Dedicated flat cable Orange...
  • Page 40 (2) Procedures The procedures are as illustrated below. (a) Processing cable end 1) Correctly place the end of the 2) Close the cover so that the flat cable 3) Assemble the cover with the body and dedicated flat cable in the cover. may be held between both sides of press them using pliers.
  • Page 41 CHAPTER 6 INSTALLATION AND WIRING (c) Building T-branch connection 8) Connect dedicated flat cable connectors from where T-branch connection is to be built as illustrated below. Dedicated flat cable connector Dedicated flat cable connector Branch line Trunk line...

  • Page 42: Connecting A Vctf Cable Connector/Flexible Cable Connector

    6.3.2 Connecting a VCTF cable connector/flexible cable connector This section describes how to connect a VCTF cable connector/flexible cable connector. (1) Components The components are shown below. Component 1: Cover Component 2: Body (light blue) Component 3: VCTF cable/flexible cable For VCTF cable connection: Green For flexible cable connection: Yellowish green...
  • Page 43 CHAPTER 6 INSTALLATION AND WIRING (2) Procedures The procedures are as illustrated below. (a) Processing cable end 1) Place each wire end of the VCTF 2) Close the cover so that the VCTF 3) Assemble the cover with the body cable/flexible cable on the guide having cable/flexible cable may be held and press them using pliers.
  • Page 44 5)-2 When using a connector for T-branch connection After removing the sheath by 7cm or more, branch the cable using a connector in the same way as the T-branch connection method for a dedicated flat cable. VCTF cable/flexible cable (trunk line) VCTF cable/flexible cable (branch line) VCTF cable/flexible cable...

  • Page 45: Using Cables Of Different Types Together

    CHAPTER 6 INSTALLATION AND WIRING 6.3.3 Using cables of different types together This section describes use of cables of different types. (1) Trunk line Cables of different types cannot be used together. (2) Branch line Cable types can be different only if the cables are used on different branches. When a module with cable (e.g.
  • Page 46 (3) System configuration example of when a dedicated flat cable is used for the trunk line Master module Remote Remote module module Remote module Power supply adapter 20cm or less Remote Module module with cable Remote Remote module module General Remote Remote power supply...
  • Page 47 CHAPTER 6 INSTALLATION AND WIRING (5) System configuration example of when a flexible cable is used for the trunk line Connecting terminating resistor on master module side Terminating resistor (CL9-TERM) Master Connection module Flexible cable Flexible cable connector Flexible cable connector (for master module) (for terminating resistor)

  • Page 48: Connecting Terminating Resistors

    6.3.4 Connecting terminating resistors Use the CL9-TERM (gray) for the terminating resistors. For a system configuration using dedicated flat cables only, the CL9-RYVK (black) can also be used. Note that terminating resistors of the same model must be used for both ends of the trunk line. (1) Connecting a terminating resistor on the master module side The following figure illustrates how to connect a terminating resistor.

  • Page 49: Checking Wiring

    CHAPTER 6 INSTALLATION AND WIRING 6.3.5 Checking wiring Check wiring between remote I/O stations and external devices. For the master module, the start I/O number is set to X/Y10 and the point mode is set to 8-point mode. LJ61CL12 Master module (X/Y10-, 8-point mode) CL2X8-D1B2 CL2Y8-TP1B2...

  • Page 50: Installing/Removing A Remote Station

    Installing/Removing a Remote Station A remote station on CC-Link/LT cannot be installed or removed while the CPU module is in the RUN status. Install or remove a remote station in either of the following status: • The system is powered off. •...

  • Page 51: Last Station Number Setting

    CHAPTER 6 INSTALLATION AND WIRING Last Station Number Setting The last station number is set to perform data link up to the last remote station in connection with the network and not to perform data link with unconnected stations. This setting is optional but useful to optimize link scan time. When 16-point mode is set, the number of occupied I/O points is set to 128 points, and the last remote station in connection with the network is numbered as "5"...
  • Page 52 Set the intelligent function module switches in 16-bit data. When the last station number is not set, Switch 1 is set to "0" (default), and data link is performed among stations within the range of the number of connectable stations. Intelligent function Setting item...

  • Page 53: Chapter 7 Programming

    CHAPTER 7 PROGRAMMING CHAPTER 7 PROGRAMMING This chapter describes the programming of the master module. System Configuration Example The system in which two remote I/O stations are connected is used as an example in this section. Number of occupied I/O points : 16 points Transmission speed : 2.5 Mbps Point mode...

  • Page 54: Devices Available For Users

    Devices Available for Users The following table lists the devices available for users. Device Description CC-Link/LT control start contact Data link stop instruction contact Data link restart instruction contact Data link error output Error (all stations) output Remote I/O error output Remote station connection error output Control start flag Operating status information...

  • Page 55: Chapter 8 Troubleshooting

    CHAPTER 8 TROUBLESHOOTING CHAPTER 8 TROUBLESHOOTING This chapter describes troubleshooting of CC-Link/LT. Condition of Each Station in Case of Failure Station Status if an Error Occurs The following table lists station status if an error occurs. Master station Remote station Data link status Remote input Remote output...

  • Page 56: Visual Check

    Visual Check Check the following: (1) Checking LEDs of the master station Check that no error occurs in the master module using LEDs by the following procedure. For LED indication and module status, refer to Page 15, CHAPTER 2. Power on the system and check the RUN LED of the master station. If the RUN LED does not turn on, troubleshoot with reference to the following.

  • Page 57: Troubleshooting Of The Master Station

    Design, Maintenance and Inspection) If the RUN LED does not turn on even after the above actions are taken, the possible cause is a hardware failure. Please consult your local Mitsubishi service center or representative, explaining a detailed description of the problem. 8.3.2...

  • Page 58: The Err. Led Is On Or Flashing

    Page 33, Section 6.2) If the ERR. LED remains on even after the above actions are taken, the possible cause is a hardware failure. Please consult your local Mitsubishi service center or representative, explaining a detailed description of the problem.

  • Page 59: The L Err. Led Is On Or Flashing

    If the L ERR. LED remains on even after the above actions are taken, the possible cause is a hardware failure. Please consult your local Mitsubishi service center or representative, explaining a detailed description of the problem.
  • Page 60 If the L ERR. LED remains flashing even after the above actions are taken, the possible cause is a hardware failure. Please consult your local Mitsubishi service center or representative, explaining a detailed description of the problem.

  • Page 61: Troubleshooting Of Remote I/O Stations

    Check terminal 24V If the PW LED does not turn on even after the above actions are taken, the possible cause is a hardware failure. Please consult your local Mitsubishi service center or representative, explaining a detailed description of the problem.

  • Page 62: The L Run Led Does Not Turn On

    If the L RUN LED does not turn on even after the above actions are taken, the possible cause is a hardware failure. Please consult your local Mitsubishi service center or representative, explaining a detailed description of the problem. 8.4.3 The L ERR.

  • Page 63: I/O Errors In Remote I/O Stations

    If input data cannot be read from the remote I/O station even after the above actions are taken, the possible cause is a hardware failure. Please consult your local Mitsubishi service center or representative, explaining a detailed description of the problem. 8.5.2...

  • Page 64: Error Codes

    Error Codes If the master module detects an error, the error details are stored in Detailed error information (buffer memory address: 16 (Un\G16)). For error details, refer to Page 68, Appendix 1.

  • Page 65: Cc-Link/Lt Diagnostics

    CHAPTER 8 TROUBLESHOOTING CC-Link/LT Diagnostics After all modules are connected using connection cables, whether the modules are ready for data link or not can be checked. (1) Monitoring the own station Monitor the own station (station connected to GX Works2) status. [Diagnostics] [CC-Link Diagnostics] (a) Monitored items...
  • Page 66 (2) Monitoring other stations Monitor other stations (stations not connected to GX Works2) status. [Diagnostics] [CC-Link Diagnostics] "Target module" (a) Monitored items Item Description Station No. Displays the start station number of each station. Number of Occupied Station Displays the number of occupied stations. Displays a station type.
  • Page 67 CHAPTER 8 TROUBLESHOOTING (3) H/W information The operating status and the setting status of the master module are displayed. (a) Operating procedure [Diagnostics] [System Monitor] Select the master module in "Main block" and click button. Click the button. Error history display is not available for CC-Link/LT. H/W information is displayed.
  • Page 68 (b) Monitored items Item Description Monitor Status Displays the current monitoring status. Model Name Displays the module model. Displays the function version. Module Product Information 000010000000000-A Function version A Switch the display format of "H/W LED Information" and Display Format "H/W SW Information".

  • Page 69: Self-Loopback Test

    CHAPTER 8 TROUBLESHOOTING Self-loopback Test This test checks whether the module alone operates normally or not. Follow the steps shown below. Start Connect cables and supply 24VDC through a dedicated power supply or a power supply adapter. After checking the following items, power on the system.

  • Page 70: Appendices

    APPENDICES Appendix 1 Details of Buffer Memory Areas This section describes the details of buffer memory areas. (1) Remote station connection information (buffer memory address: 0 to 3 (Un\G0 to 3)) Remote stations on the network is detected, and connection status of the stations is stored. Address (decimal) Station No.16 Station No.15...
  • Page 71 APPENDICES (4) Detailed error information (buffer memory address: 16 (Un\G16)) The details of errors detected by the master station are stored. If "Error of station outside control range" is detected, b3 will be latched. Writing "1" to b3 will clear the "Error of station outside control range" information. Name Description 0: Data link normal...
  • Page 72 (6) Operating status information (buffer memory address: 18 (Un\G18)) The operating status of the master module is stored. Name Description 0: Data link stopped Data link status 1: Data link being executed 0: Initial communication not complete Initial communication status 1: Initial communication completed ⎯...
  • Page 73 APPENDICES (9) Detailed remote station information (buffer memory address: 32 to 95 (Un\G32 to 95)) Information on each remote station is stored. Name Description b2 to b0 000: 1 pt. 001: 2 pts. 010: 4 pts. 011: 8 pts. 100: 16 pts. Number of I/O points 0: No output Output flag...

  • Page 74: Appendix 2 Check Methods Of Serial Number And Function Version

    Appendix 2 Check Methods of Serial Number and Function Version For check methods of the serial number and the function version of the master module, refer to the following. MELSEC-L CPU Module User's Manual (Hardware Design, Maintenance and Inspection) MELSEC-L CC-Link IE Field Network Head Module User's Manual Appendix 3 Data Link Processing Time This section describes the link scan time, transmission delay time, and automatic return time.
  • Page 75 APPENDICES (2) Transmission delay time The transmission delay time (time that data reaches to a destination) is described as below. (a) Master station Remote station (Input) ← The following formula calculates the time after a signal is input to a remote station until the CPU module device (X) turns on (off).

  • Page 76: Appendix 4 Difference Between L Series And Q Series

    (3) Automatic return time The automatic return time is the time taken for a module recovered from an error to automatically restart data link. [Calculation formula] 37401 + A + B + C + LS [µs] A: Constant B: Constant C: Constant LS: Link scan time ( Page 72, Appendix 3 (1))

  • Page 77: Appendix 5 I/O Assignment Tables

    APPENDICES Appendix 5 I/O Assignment Tables Copy the following tables and use them for recording I/O assignment for a CC-Link/LT system. (1) In 4-point mode Station Station Model Input Output Model Input Output...
  • Page 78 (2) In 8-point mode Station Station Model Input Output Model Input Output...
  • Page 79 APPENDICES (3) In 16-point mode Station Station Model Input Output Model Input Output...

  • Page 80: Appendix 6 External Dimensions

    Appendix 6 External Dimensions The following figure shows the external dimensions of the master module. DIN rail center 28.5 (Unit: mm)
  • Page 81 APPENDICES Memo...

  • Page 82: Index

    INDEX ....14 ......14 Automatic return function Parameter settings .
  • Page 83 Memo...

  • Page 84: Revisions

    Japanese manual version SH-081013-A This manual 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 manual.

  • Page 85: Warranty

    6. Failure caused by reasons unpredictable by scientific technology standards at time of shipment from Mitsubishi. 7. Any other failure found not to be the responsibility of Mitsubishi or that admitted not to be so by the user. 2. Onerous repair term after discontinuation of production (1) Mitsubishi shall accept onerous product repairs for seven (7) years after production of the product is discontinued.
  • Page 86 Microsoft, Windows, Windows NT, and Windows Vista are registered trademarks of Microsoft Corporation in the United States and other countries. Pentium is a trademark of Intel Corporation in the United States and other countries. Ethernet is a trademark of Xerox Corporation. All other company names and product names used in this manual are trademarks or registered trademarks of their respective companies.
  • Page 90 Phone: +380 (0)44 / 490 92 29 Fax: +380 (0)44 / 248 88 68 Mitsubishi Electric Europe B.V. /// FA - European Business Group /// Gothaer Straße 8 /// D-40880 Ratingen /// Germany Tel.: +49(0)2102-4860 /// Fax: +49(0)2102-4861120 /// [email protected] /// www.mitsubishi-automation.com...

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