Rockwell Automation 1785-BCM_BEM, D17856.5.4 PLC-5 Backup Communication Module User Manual - Manual (Page 135)

Sample Programs
Appendix A
A-17
Rung 2:5
THIS SUBROUTINE MONITORS THE BLOCK TRANSFER WRITES, READS AND READ STATUS DATA
AND INCREMENTS COUNTERS ON ERRORS. PARTS OF THIS SUBROUNTINE MAY BE DELETED
BASED ON PACKET LENGTH OR THE ENTIRE SUBROUTINE MAY BE DELETED IF THE MEMORY IS
CRITICAL.
| JUMP TO |
| WATCHDOG/ |
| ERROR |
| SUB |
| +JSR––––––––––––––––––––+ |
+––––––––––––––––––––––––––––––––––––––––––––––––––––+JUMP TO SUBROUTINE +–+
| |Prog file number 11| |
| |Input par | |
| |Return par | |
| +–––––––––––––––––––––––+ |
Rung 2:6
THIS TIMER WILL CAUSE A DELAY OF DATA TRANSFER ON POWER UP AND CHANGES FROM
PROGRAM TO RUN. IT DOES NOT AFFECT SWITCHOVERS.
| PROG TO |
| RUN DELAY |
| +TON–––––––––––––––+ |
+––––––––––––––––––––––––––––––––––––––––––––––––––––+TIMER ON DELAY +–(EN)–+
| |Timer T29:0| |
| |Time base 0.01+–(DN) |
| |Preset 50| |
| |Accum 50| |
| +––––––––––––––––––+ |
Rung 2:7
| |
+––––––––––––––––––––––––––––––––[END OF FILE]–––––––––––––––––––––––––––––––––+
| |