Mitsubishi QJ71DN91 User Manual page 8

Devicenet master-slave module programmable logic controller

Table of Contents

7 PROGRAMMING WHEN EXECUTING THE MASTER FUNCTION

7.1 Precautions on Programming ................................................................................................................. 7- 1

7.2 System Configuration.............................................................................................................................. 7- 2

7.3 Setting Parameters ................................................................................................................................. 7- 4

7.3.1 Parameter settings using the sequence program ........................................................................... 7- 4

7.3.2 Creating parameters using auto configuration ................................................................................ 7- 6

7.3.3 Saving parameters in flash ROM..................................................................................................... 7- 6

7.4 I/O Communication with Slave Nodes.................................................................................................... 7- 7

7.5 Performing Message Communication .................................................................................................... 7- 8

7.5.1 Example of message communication read ..................................................................................... 7- 8

7.5.2 Example of message communication write..................................................................................... 7- 9

7.6 Obtaining Error Information .................................................................................................................... 7-10

7.7 Allocating Transmission/Reception Data Storage Devices for Future Expansion................................ 7-11

8 PROGRAMMING WHEN EXECUTING THE SLAVE FUNCTION

8.1 System Configuration.............................................................................................................................. 8- 1

8.2 Setting Parameters Using the Sequence Program................................................................................ 8- 2

8.3 I/O Communication with the Master Node ............................................................................................. 8- 3

8.4 Obtaining Error Information .................................................................................................................... 8- 4

9 TROUBLESHOOTING

9.1 Items to Check When an Error Occurs .................................................................................................. 9- 2

9.1.1 Checking the LEDs .......................................................................................................................... 9- 2

9.1.2 When communication with all slave nodes cannot be performed (using the master function) ..... 9- 3

9.1.3 When communication with a specific slave node cannot be performed

(using the master function) .............................................................................................................. 9- 4

9.1.4 When communication with the master node cannot be performed (using the slave function)...... 9- 5

9.2 Error Codes ............................................................................................................................................. 9- 6

9.2.1 Communication error codes............................................................................................................. 9- 6

9.2.2 Execution error codes of message communication (using the master function only) ................... 9- 9

9.3 Verifying the QJ71DN91 Status on the GX Developer System Monitor ............................................... 9-11

APPENDIX

Appendix 1 External Dimension Diagram ................................................................................................App- 1

Appendix 2 Differences between the QJ71DN91 and the AJ71DN91/A1SJ71DN91 ............................App- 2

Appendix 3 Parameter Setting Sheet (For the Master Function) ............................................................App- 3

Appendix 4 Parameter Setting Sheet (For the Slave Function) ..............................................................App- 4

Appendix 5 List of Communication Parameters of Slave Nodes Manufactured by Various

Manufacturers........................................................................................................................App- 5

Appendix 6 EDS File of the QJ71DN91 ...................................................................................................App- 6

INDEX