Rockwell Automation RECOMM-IBUS Interbus Communications Module - Manual (Page 4)

II Interbus Communications Module
Chapter 6 Using I/O Messaging
6.1 About I/O Messaging ..................................................... 6-1
6.2 Understanding the I/O Image......................................... 6-1
6.3 Using Logic Command/Status ....................................... 6-4
6.4 Using Reference/Feedback ........................................... 6-4
6.5 Using Datalinks .............................................................. 6-4
6.5.1 Rules for Using Datalinks .................................... 6-4
6.5.2 32-Bit Parameters using 16-Bit Datalinks ............ 6-5
6.6 Sample SLC Ladder Logic Program .............................. 6-6
6.6.1 Sample SLC Ladder Logic - Main Program ......... 6-8
6.6.2 Sample SLC Ladder Logic - Station 2 Program. 6-11
Chapter 7 Using Explicit Messaging (PCP Communications)
7.1 About Explicit Messaging............................................... 7-1
7.2 Running Explicit Messages............................................ 7-2
7.3 PCP Communications.................................................... 7-3
7.3.1 PCP Read Message Format................................ 7-5
7.3.2 Read Examples ................................................... 7-7
7.3.3 PCP Write Message Format .............................. 7-10
7.4 Sample SLC Ladder - Peripheral Communications
Protocol (PCP)............................................................. 7-16
7.4.1 PCP Write Subroutine (Explicit Messaging) ...... 7-20
Chapter 8 Troubleshooting the Interbus Module and Network
8.1 Understanding the Status Indicators.............................. 8-1
8.2 Cable Check (CC) Status Indicator................................ 8-2
8.3 Remote Bus Disable (RD) Status Indicator.................... 8-2
8.4 Transmit/Receive (TR) Status Indicator ......................... 8-2
8.5 Bus Active (BA) Status Indicator.................................... 8-3
8.6 Bus Voltage (UL) Status Indicator.................................. 8-3
8.7 Module Diagnostic Items................................................ 8-3
8.8 Viewing and Clearing Events ......................................... 8-5
Appendix A Technical Specifications ...................................................... A-1
Appendix B Interbus Module Parameters ................................................ B-1
Appendix C Logic Command/Status Words............................................. C-1
Glossary ..................................................................................Glossary-1
Index ....................................................................................... Index-1