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Hitachi J.NET User Manual

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User's Manual
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J.NET
(LQE540-E)
SEE-1-102 (A)
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Summary of Contents for Hitachi J.NET

  • Page 1 User's Manual Option J.NET (LQE540-E) SEE-1-102 (A)
  • Page 2 User's Manual Option J.NET (LQE540-E)
  • Page 3 No part of this material may be reproduced in any form or by any means without permission in writing from the publisher. ● Information in this document is subject to change without notice. For inquiries about this product, please visit the following URL: https://www.hitachi.com/s10/ All Rights Reserved, Copyright © 2019, Hitachi, Ltd. IC (FL-MW2007)
  • Page 4 Safety Precautions ● Before installation, operation, maintenance, and inspection of this product, you must carefully read through this manual and other related manuals. When using the product, make sure that you are familiar with all the information concerning this product, safety information, and precautions provided in those manuals. ●...
  • Page 5 You must be alert and use your common sense. ● Do not perform any installation, wiring, handling, or internal customization that is not described in this manual. Hitachi will not be responsible for any damage to Hitachi equipment or peripherals and personal injury resulting from such a practice.
  • Page 6 During work ● Follow the sequence of steps specific to each procedure. ● Use the relevant tools and instruments for each task as specified in the manual. If no particular tools are specified, use commercially available tools and instruments which fit the purpose. ●...
  • Page 7 Prevention of electric shock ● Before starting work, make sure that there is no potential electrical hazard in the maintenance area. Example: Insufficient grounding line or a wet floor ● Before starting work, check the location of the emergency power-off switches and how to operate them. ●...
  • Page 8 Procedure in an emergency In the case of electric shock ● Do not panic. Do not become another victim through contact with the injured person. ● First, shut off the electric current passing through the victim by using the emergency power-off switch. If there is no emergency power-off switch, use the normal power-off switch.
  • Page 9 2. Notes About Warning Indications The following summarizes the warnings contained in this manual and their locations. 2.1 Notice Notice ● To avoid damaging the product, protect it with cushioning, and then store it in the environment shown in Table 1-3. ●...
  • Page 10 J.NET SYSTEM/S10VE. If you log on with a user account other than that used for installing J.NET SYSTEM/S10VE, the installed program might not appear in the program menu. In this case, log off and log on again with the administrator account that was first created on your computer, uninstall the installed program, and then install the program again.
  • Page 11 Notice ● Until the PCs are reset, the parameters written to the CPU modules do not take effect. If you do not reset the PCs, or if reset of the PCs fails, manually reset the PCs, or perform a power-on reset. (See page 4-29.) ●...
  • Page 12 However, use of this produce in any of the applications described above can be approved by the decision of Hitachi if the purpose is specifically limited, the customer has responsibility for providing redundancy, or no special quality is...
  • Page 13 Return repair is supported, and requires the customer to send the malfunctioning product to a designated repair service. ● Fill in the required items in the Hitachi Programmable Controller S10VE Repair Request Sheet in Appendix A in the S10VE User's Manual General Description (manual number SEE-1-001), and then enclose it in the package with the product to be returned for repair.
  • Page 14 3. Range of services The price of the delivered product does not include on-site servicing fees by engineers. Extra fees will be charged for the following: ● Instruction for installation and adjustments, and witnessing trial operations ● Inspections, maintenance, and adjustments ●...
  • Page 15 Revision History Revision History (revision details) Issue date Remarks New edition Oct. 2019 S-12...
  • Page 16 Thank you for purchasing the J.NET module, which is an option for use with the S10VE. This manual S10VE User's Manual Option J.NET describes how to use the J.NET module. For proper use of the J.NET module, thoroughly read this manual.

  • Page 17: Table Of Contents

    3. Mounting and Wiring ..................3.1 Mount base ..............................3-1 3.2 Mounting the modules ..........................3-1 3.3 External dimensions of the J.NET module ....................3-3 3.4 Wiring ................................3-4 3.4.1 Interface signals and wiring method ...................... 3-4 3.4.2 Cable specifications ..........................3-5 3.4.3 Wiring examples ............................
  • Page 18 4.2.9 Module error ............................4-34 4.2.10 Station error ............................4-35 4.2.11 CSV output ............................4-36 5. Programming ....................5.1 Software configuration of the J.NET module ....................5-1 5.2 NET status ..............................5-3 5.3 S-register ............................... 5-4 5.4 S-table ................................5-5 6.
  • Page 19 Figure 4-2 SETUP window ..........................4-3 Figure 4-3 J.NET SYSTEM/S10VE InstallShield Wizard window ..............4-4 Figure 4-4 Confirmation message for uninstallation of J.NET SYSTEM/S10VE ..........4-6 Figure 4-5 Setting Tool window of BASE SYSTEM/S10VE ................4-7 Figure 4-6 Main window (initial display) ......................4-8 Figure 4-7 Communication type window ......................
  • Page 20 Figure 8-1 Wiring required for external loopback check ..................8-2 Figure 8-2 Switch settings of the J.NET module ....................8-4 Figure 8-3 TX and RX LEDs of the J.NET module ................... 8-5 Figure 8-4 ERR LEDs of the J.NET module ...................... 8-6...
  • Page 21 Table 6-1 J.STATION communication time ......................6-1 Table 7-1 Maintenance and inspection items ...................... 7-1 Table 8-1 Details of Test and Maintenance diagnosis for J.NET modules ............8-1 Table 8-2 Test item and module type selected by the setting switches ............... 8-3 Table 8-3 LED states during the Test and Maintenance operation ..............

  • Page 22: Specifications

    1. Specifications 1.1 Application By connecting the J.NET module (model: LQE540-E) to a network compliant with the JEMA Level 1 Specifications for Programmable Controller Field Networks, data communication between various station devices can be performed. (Message read/write services are not supported.) JEMA: The Japan Electrical Manufacturers Association 1.2 Specifications...

  • Page 23: Environmental Specifications

    1. Specifications 1.2.3 Environmental specifications Table 1-3 Environmental specifications Item Specifications Operating ambient temperature 0 to 55° Storage ambient temperature -20 to 75° Relative humidity 10 to 90% RH (operating and non-operating) (no condensing) Vibration resistance Frequency: 10 to 150 Hz, acceleration: 10 m/s Applied direction of vibration: directions X, Y, and Z Sweep time: 8 minutes, number of sweep cycles: 20 Shock resistance...

  • Page 24: Support Specifications For Jema Standard

    The initialization service, the I/O service, and the data read service automatically run between the J.NET module and stations when the J.NET module is reset or powered on with station information loaded in its internal parameter table.

  • Page 25: System Software Specifications

    1.4 System software specifications 1.4.1 System software overview To use the J.NET module, you need to register the hardware switch settings and various kinds of software information in the module. The system software (tool) shown in Table 1-5 allows you to register module information in a similar manner to the way you would do so by using a typical Windows®-based application.

  • Page 26: Names And Functions Of Parts

    N1, N2 Network numbers TERM Terminal for a terminating resistor. Short-circuit the TERM and A terminals when the J.NET module is used at the end of the network. A, B Terminal used to connect a transmission/reception data line Terminal used to connect the signal ground line Terminal used to connect the shield line Used for wiring with the FG terminal of the power supply module.
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  • Page 28: Mounting And Wiring

    3. Mounting and Wiring 3. Mounting and Wiring 3.1 Mount base The J.NET module can be mounted in the mount bases shown in Table 3-1. Table 3-1 Mount base applicable to the J.NET module Name Model Specification 7-slot mount base...
  • Page 29 3. Mounting and Wiring Notice ● Poor contact might cause malfunction. Mount the module and connect cabling to the module immediately after the module is unpacked so that dust or other foreign substances do not accumulate on connectors. ● To avoid damaging a module when removing or mounting it, turn off the power switch of the power supply module beforehand.

  • Page 30: External Dimensions Of The J.net Module

    3. Mounting and Wiring 3.3 External dimensions of the J.NET module Figure 3-2 shows the external dimensions of the J.NET module. 21.5 mm or less 140.2 mm 34.0 mm LQE540-E J.NET Figure 3-2 External dimensions of the J.NET module...

  • Page 31: Wiring

    Input condition refers to the electrical potential of A based module on the input voltage of B. Short-circuit the TERM and A terminals when the J.NET Figure 3-3 Wiring the module module is used at an end of the network.

  • Page 32: Cable Specifications

    Capacitance (1 kHz) 60 pF per m Characteristic impedance (1 MHz) 110Ω Note: The preceding table shows a characteristic impedance of 110Ω at 1 MHz. However, the J.NET module has 120Ω internal terminating resistors in consideration of other transmission rates.

  • Page 33: Wiring Examples

    3. Mounting and Wiring 3.4.3 Wiring examples Configure the terminating resistors for both devices connected to the ends of the line. The J.NET module supports two independent networks (N1 and N2), each of which must be wired as a totally discrete network.

  • Page 34: Figure 3-5 Network Wiring Example (2)

    3. Mounting and Wiring ● Wiring for a J.NET module that is not at the end of the N1 line TERM Leave the TERM and A terminals open on a J.NET module used between terminated ends. J.NET module S10VE CPU unit...
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  • Page 36: Operation

    J.NET SYSTEM/S10VE supports the Microsoft® Windows® 7 (64-bit) operating system and Microsoft® Windows® 10 (64-bit) operating system. J.NET SYSTEM/S10VE must be installed from the CD of BASE SET/S10VE. The Microsoft Visual C++ 2010 redistributable package (x64) is a prerequisite program for operating BASE SET/S10VE. If you double- click SETUP.exe (in BASE SET/S10VE) with this program not installed, the following message appears...
  • Page 37 Windows® programs, and then reinstall the tool. For details about the uninstallation procedure, see 4.1.3 Uninstallation. ● Do not specify, as the J.NET SYSTEM/S10VE installation folder, any of the following folders protected by User Account Control: - Program file folder (for example, C:¥Program Files) - System root folder (for example, C:¥Windows)

  • Page 38: Installation

    (2) After double-clicking SETUP.exe, the following message (Figure 4-1) might be displayed. Click the Yes button to start setup. Figure 4-1 User Account Control message (3) In the SETUP window that appears (Figure 4-2), select J.NET SYSTEM/S10VE and then click the Install button. Figure 4-2 SETUP window...

  • Page 39: Figure 4-3 J.net System/S10Ve Installshield Wizard Window

    4. Operation (4) The J.NET SYSTEM/S10VE InstallShield Wizard window (Figure 4-3) appears. Click the Next button. Figure 4-3 J.NET SYSTEM/S10VE InstallShield Wizard window If you click the Cancel button, a message appears, asking whether you want to cancel setup. Click the Yes or No button.
  • Page 40 J.NET SYSTEM/S10VE. If you log on with a user account other than that used for installing J.NET SYSTEM/S10VE, the installed program might not appear in the program menu. In this case, log off and log on again with the administrator account that was first created on your computer, uninstall the installed program, and then install the program again.

  • Page 41: Uninstallation

    (2) When the uninstallation is complete, a message indicating completion of uninstallation appears. Click the Complete button. 4.1.4 Reinstallation To reinstall J.NET SYSTEM/S10VE, you must uninstall it, and then install it again. For details about the uninstallation procedure, see 4.1.3 Uninstallation. For details about the installation procedure, see 4.1.2 Installation.

  • Page 42: Starting Up The System

    4. Operation 4.1.5 Starting up the system This subsection describes how to start up J.NET SYSTEM/S10VE. (1) Starting up BASE SYSTEM/S10VE Start up BASE SYSTEM/S10VE, and then create or select the target project. For details about how to start up BASE SYSTEM/S10VE and create or select a project, see the S10VE User's Manual General Description (manual number SEE-1-001).

  • Page 43: Figure 4-6 Main Window (Initial Display)

    Figure 4-6 Main window (initial display) In this state, PCs are not connected yet. To connect to PCs and then reference J.NET module settings or RAS information, see (4) Startup in online state. To create or edit a J.NET module configuration information file without connecting to PCs, see (5) Startup in offline state.

  • Page 44: Figure 4-8 Main Window (Online Status)

    (b) The display returns to the main window (Figure 4-8) in which module selection is possible. If a J.NET module is mounted or parameters are set for the CPU module, the module number (0 to 3) is displayed in gray or black.

  • Page 45: Figure 4-9 Main Window ([Offline] Radio Button Selected)

    (5) Startup in offline state In offline state, you can edit an existing configuration information file of a J.NET module or create a new one even if there is no actual machine. Use such a configuration information file to send configuration information through the data transmission/reception function of BASE SYSTEM/S10VE.

  • Page 46: Changing Connections

    4. Operation 4.1.6 Changing connections Function: Sets the PCs-to-personal computer communication type. Operation: The following describes the operation procedure. (1) In the main window (Figure 4-6), click the Change connection button. (2) The Communication type window (Figure 4-10) appears. Figure 4-10 Communication type window (initial display) (3) Enter the IP address of the connection destination.

  • Page 47: Selecting An Edition File

    4. Operation 4.1.7 Selecting an edition file Function: Selects an existing J.NET configuration information file to be edited. This function works in the offline state. Operation: The following describes the operation procedure. (1) In the main window (Figure 4-6), select the Offline radio button.

  • Page 48: Figure 4-12 Select File Window

    4. Operation (3) In the Open window, select a file to be edited, and then click the Open button. When the Select File window (Figure 4-12) appears, click the Select File button. Figure 4-12 Select File window For details about subsequent operations, see 4.2 Commands. 4-13...

  • Page 49: Creating An Edition File

    4. Operation 4.1.8 Creating an edition file Function: Creates a new J.NET module configuration information file. This function works in the offline state. Operation: The following describes the operation procedure. (1) In the main window (Figure 4-6), select the Offline radio button.

  • Page 50: Figure 4-14 Creation Confirmation Window

    Specify the PCs number. By default, the PCs number of the project selected by BASE SYSTEM/S10VE is displayed. Setting range 0 to 9999 - Module selection Select a J.NET module number. Select one of the radio buttons, Module 0 to Module 3. 4-15...

  • Page 51: Closing The System

    4. Operation - File comment You can enter any comment about the file by using a maximum of 512 characters. For details about subsequent operations, see 4.2 Commands. 4.1.9 Closing the system In the main window (Figure 4-6), click the Close button. 4-16...

  • Page 52: Commands

    4. Operation 4.2 Commands 4.2.1 Organization of J.NET SYSTEM/S10VE functions Figure 4-15 shows the organization of J.NET SYSTEM/S10VE functions. Function organization Online Connection changing Online/offline selection Offline Edition file selection Edition file creation NET1 refresh cycle Module selection System info editing...

  • Page 53: J.net System/S10Ve Main Window

    4. Operation 4.2.2 J.NET SYSTEM/S10VE main window The following describes the contents of the main window (Figure 4-16). Figure 4-16 Main window ● Status display In the Status area, information shown in Table 4-1 Status display is displayed. Table 4-1 Status display...

  • Page 54: Table 4-2 Mounting State And Setting State Display In Online Mode

    ● Mounting state and Setting state display (online mode) Table 4-2 shows the information displayed for Mounting state and Setting state in the Module selection area. Table 4-2 Mounting state and setting state display in online mode J.NET module CPU module Mounting state Setting state...

  • Page 55: Editing Parameters

    In this window, select the CPU module or option (J.NET module) from which parameters are to be read, and then click the OK button. If a J.NET module is not mounted or if CPU module parameters are not set, the Receiving agency selection window does not appear. In this case, parameters will be read from the J.NET module or CPU module that is automatically selected.

  • Page 56: Editing System Information

    4. Operation 4.2.4 Editing system information Function: Edits system information of the module. Operation: The following describes the operation procedure. (1) In the Edit window (Figure 4-18), click the Edit system information button. (2) The Edit system information window (Figure 4-19) appears. Figure 4-19 Edit system information window - Setting a NET1 (NET2) refresh cycle Set a refresh cycle for the I/O service.
  • Page 57 4. Operation (3) When the setting is complete, click the OK button. To cancel the setting, click the Cancel button. 4-22...

  • Page 58: Editing Net1 Information (Or Net2 Information)

    4. Operation 4.2.5 Editing NET1 information (or NET2 information) Function: Edits NET1 information (NET2 information) of the module. Operation: The following describes the operation procedure. (1) In the Edit window (Figure 4-18), click the Edit NET1 information or Edit NET2 information button. (2) The Edit information window (Figure 4-20) appears.

  • Page 59: Figure 4-21 Edit Window

    4. Operation (3) The Edit window (Figure 4-21) appears. Set a station number, a station type, and a station timeout time. Figure 4-21 Edit window - Station number Set the station number to be assigned to the substation. Setting range H01 to H7F - Station type Select the station type that best suits the substation specifications.

  • Page 60: Table 4-4 Station Type List

    - Timeout time of station Set the length of time for which the station monitors the refresh cycle of the J.NET module. This refresh cycle must be at least five times longer than the NET1 (NET2) refresh cycle setting. If a substation registered with the same network cannot communicate properly due to, for example, power failure or disconnection, the refresh cycle of the J.NET module is prolonged.

  • Page 61: Figure 4-22 Set Slot Information Window

    4. Operation (4) Selecting the slot number Select the number of the I/O slot in which you want to mount the module. Setting range H0 to HF When I/O or I/O+DR/DW is selected as a station type, slot setting is enabled. Click any slot number, and then click the Set slot button.

  • Page 62: Table 4-7 List Of Transfer Addresses That Can Be Set

    4. Operation - Transfer byte count Enter a hexadecimal number as the transfer bytes of each slot. Setting range H01 to H100 - Transfer address Enter the starting address to be assigned to each slot, by using the PI/O register format. Table 4-7 List of transfer addresses that can be set lists the transfer addresses that can be set.

  • Page 63: Writing Editing Results

    4. Operation 4.2.6 Writing editing results To write the editing results, click the Write button in the Edit window. - Online mode: Editing results are written to the PCs. - Offline mode: Editing results are written to a configuration information file. ●...
  • Page 64 In this case, the parameters prior to write are used in communication until the PCs are reset. (3) If PCs are reset successfully, the message PCs reset succeeded. appears. Then, the J.NET module begins communication by using the written parameters.

  • Page 65: Figure 4-25 Save File Window

    4. Operation ● Offline writing (write to a file) (1) In the Edit window (Figure 4-18) in offline mode, click the Write button. The Save File window (Figure 4-25) appears. You can change the PCs number and File comment settings. After checking the displayed information, click the Save File button.
  • Page 66 4. Operation Notice ● Set the PCs number of the S10VE you want to configure. If the S10VE does not match the PCs number, configuration information that is edited offline cannot be sent by the data transmission/reception function of BASE SYSTEM/S10VE. Setting 9999 as the PCs number enables transmission regardless of the PCs number of the S10VE.

  • Page 67: Refresh Cycle Monitor

    4. Operation 4.2.7 Refresh cycle monitor Function: Monitors the refresh cycle. Operation: The following describes the operation procedure. (1) In the main window (Figure 4-8), click the Refresh cycle monitor button. (2) The Refresh cycle monitor window (Figure 4-27) appears. Current value of the refresh cycle Setting value of the refresh cycle Figure 4-27 Refresh cycle monitor window...

  • Page 68: Displaying Error Information

    4. Operation 4.2.8 Displaying error information Function: Selects Module error or Station error to display error information for the module. Operation: The following describes the operation procedure. (1) In the main window (Figure 4-8), select the module in the module selection area, and then click the Display error information button.

  • Page 69: Module Error

    4. Operation 4.2.9 Module error Function: Displays error information for the module. Operation: The following describes the operation procedure. (1) In the Error information window (Figure 4-28), click the Module error button. If the module is normal, the message The module is normal appears. If the module contains an error, the Module error window (Figure 4-29) appears.

  • Page 70: Station Error

    (Figure 4-30) appears. For details about the NET1 error codes (NET1 EC) and NET2 error codes (NET2 EC), see 13.2.2.2 J.NET module troubleshooting in the S10VE User's Manual General Description (manual number SEE- 1-001). Figure 4-30 Station error window (2) To start monitoring, click the Start monitoring button.

  • Page 71: Csv Output

    Operation: The following describes the operation procedure. (1) In online mode, establish a connection between the J.NET system and the PCs (see 4.1.6 Changing connections). In offline mode, select an edition file (see 4.1.7 Selecting an edition file).
  • Page 72 4. Operation CSV file output example In online mode, the communication type is displayed. Example: Ethernet (192.192.192.1) J.NET 2018/01/15 21:38:02 File name = C:¥temp¥Settings¥JN_m3.pdat PCs number: 123 ***** NET1 information ***** System information Refresh cycle,3[ms] Status table address,R100 Station information...
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  • Page 74: Programming

    5. Programming 5. Programming 5.1 Software configuration of the J.NET module The following shows the software configuration of the J.NET module. The communication control program is a ROM program and does not need to be loaded. Slave parameter table NET status...

  • Page 75: Figure 5-2 Flow Of Communication Data Of The Communication Control Program

    5. Programming ● Communication control program - This program performs I/O communication between the PI/O unit and the CPU module. CPU module J.NET module PI/O unit PI/O input I/O area I/O buffer PI/O output Figure 5-2 Flow of communication data of the communication control program ●...

  • Page 76: Net Status

    5. Programming 5.2 NET status The NET status table stores the communication information of each station. The user must register the starting address of the NET status table from the following bit areas by using the tool system. Table 5-2 shows the configuration of the NET status table. The following nine types of areas can be registered: X0000 to XFFFF Y0000 to YFFFF...

  • Page 77: S-Register

    5. Programming 5.3 S-register The S-register stores error information for N1 and N2 respectively. If an error occurs in any one of the stations (substations) connected to N1 or N2, the corresponding bit is set to 1. SW0A∆0 N1 ERR N2 ERR N1 ALM N2 ALM...

  • Page 78: S-Table

    5. Programming 5.4 S-table The S-table holds addresses at which the number of bytes in received data, the number of bytes in received responses, and error codes generated during communication are stored. For details about error codes, see the S10VE User's Manual General Description (manual number SEE-1-001). Table 5-3 S-table allocation (main module) Main module Network...

  • Page 79: Table 5-5 S-Table Allocation (Sub2 Module)

    5. Programming Table 5-5 S-table allocation (sub2 module) Sub2 module Network Station ID Number of bytes of Number of bytes of Error codes number received data received responses (255) /C40000 /C40040 /C40080 /C40002 /C40042 /C40082 /C40004 /C40044 /C40084 /C4003C /C4007C /C400BC /C4003E /C4007E...

  • Page 80: User's Guide

    ● Communication time of a J.NET module The communication time of a J.NET module is the sum of each slave device's communication time indicated in the following formula. In other words, if slave devices connected to the J.NET module are assumed as slave device 1, slave device 2, ...

  • Page 81: Figure 6-1 Example Of Calculating Communication Time When J.stations Are Connected

    The communication time is the sum of the communication time of J.STATION (1), J.STATION (2) and J.STATION (3). In the following calculation, the communication time is 11.1 ms. Communication time = J.STATION (1) communication time J.NET + J.STATION (2) communication time + J.STATION (3) communication time Transmission speed = 1.85 + 0.0031 x (128 + 128)

  • Page 82: Maintenance

    7.2 Replacing or adding the module For details about how to replace or add the J.NET module, see Chapter 14. Replacing or Adding Modules in the S10VE User's Manual General Description (manual number SEE-1-001).
  • Page 83 This page is intentionally left blank.

  • Page 84: Test And Maintenance Diagnosis

    Table 8-1 describes details of Test and Maintenance diagnosis for a J.NET module. You can select between four types of Test and Maintenance by using the MODU No. and BIT RATE setting switches on the J.NET module. For details about how to start Test and Maintenance, see 8.3 Starting Test and Maintenance.

  • Page 85: Wiring Method

    ■ Wiring required for external loopback check (No. 4) Figure 8-1 shows the wiring required for external loopback check. LQE540-E J.NET Connect the A terminal of N1 (NET1) to that of N2 (NET2), then the B terminal of N1 (NET1) to that of N2 (NET2).

  • Page 86: Starting Test And Maintenance

    (1) If necessary, perform wiring as shown in 8.2 Wiring method. (2) Select the test item and module type by using the MODU No. and BIT RATE setting switches of the J.NET module. Table 8-2 shows the correlation between test items, module types and switch settings of the CPU module required to start Test and Maintenance.

  • Page 87: Figure 8-2 Switch Settings Of The J.net Module

    BIT RATE setting switch Select a test item. Figure 8-2 Switch settings of the J.NET module (3) Set the CPU RUN/STOP switch and LADDER RUN/STOP switch of the CPU module to RUN. (4) Turn on the power switch of the power supply module. This starts the Test and Maintenance operation.

  • Page 88: Figure 8-3 Tx And Rx Leds Of The J.net Module

    N1 (NET1) TX and RX LEDs N2 (NET2) TX and RX LEDs Figure 8-3 TX and RX LEDs of the J.NET module (5) To stop the Test and Maintenance operation, turn off the power switch of the power supply module.

  • Page 89: Checking Errors

    8.4 Checking errors If an error is detected during the Test and Maintenance operation, the ERR LED of the J.NET module turns on. If the Test and Maintenance operation results in the ERR LED turning on, the J.NET module or the CPU module might have failed.

  • Page 90: Table 8-5 Viewing Detailed Error Information By Using The Tool

    8. Test and Maintenance Diagnosis Table 8-5 Viewing detailed error information by using the tool Reference address Detailed error information as read Main module Sub module /00A40E34 /00AC0E34 NET1 transmission error count (T/M1 or T/M4) /00A40E38 /00AC0E38 NET2 transmission error count (T/M1 or T/M4) /00A40E3C /00AC0E3C NET1 reception error count (T/M1 or T/M4)
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