Rockwell Automation 1785-BCM_BEM, D17856.5.4 PLC-5 Backup Communication Module User Manual - Manual (Page 139)

Sample Programs
Appendix A
A-21
Rung 10:0
THIS IS THE START OF A SUBROUTINE PROGRAM FILE THAT WILL BE EXECUTED
IN THE PRIMARY PROCESSOR TO MOVE AND BTW DATA TO THE SECONDARY PROCESSOR.
THIS OPTIONAL RUNG CAN BE USED TO JUDGE DATA TRANSFER TIME BY COMPARING N34:10
IN THE PRIMARY TO N33:10 IN THE SECONDARY.
| T4:0 +TON–––––––––––––––+ |
+––]/[–––––––––––––––––––––––––––––––––––––––––––––++TIMER ON DELAY +–(EN)+–+
| DN ||Timer T4:0| | |
| ||Time base 0.01+–(DN)| |
| ||Preset 32000| | |
| ||Accum 1370| | |
| |+––––––––––––––––––+ | |
| | +MOV–––––––––––––––+| |
| +–––––+MOVE ++ |
| |Source T4:0.ACC| |
| | 0| |
| |Dest N34:10| |
| | 1370| |
| +––––––––––––––––––+ |
Rung 10:1
THE USER WILL ADD MANY SIMILIAR RUNGS THAT MOVE DATA TABLE VALUES TO N34. THE
COUNTER ACCUMULATED DATA IS PLACED IN N34:25 IN THE PRIMARY PROCESSOR. THE
SECONDARY PROCESSOR WILL RECEIVE THE SAME DATA IN N33:25. IN THE SECONDARY
PROCESSOR’S SECONDARY SUBROUTINE THERE IS A SIMILIAR RUNG THAT MOVES N33:25 TO
C5:0.ACC. RUNGS LIKE THESE SHOULD BE ADDED FOR ALL DATA TABLE VALUES THAT NEED
TO BE SENT.
| BTW 1 |
| DN |
| N30:5 +MOV–––––––––––––––+ |
+––––] [––––––––––––––––––––––––––––––––––––––––––––––––––+MOVE +–+
| 13 |Source C5:0.ACC| |
| | 8| |
| |Dest N34:25| |
| | 8| |
| +––––––––––––––––––+ |