Rockwell Automation 1785-BCM_BEM, D17856.5.4 PLC-5 Backup Communication Module User Manual - Manual (Page 143)

Sample Programs
Appendix A
A-25
Rung 11:3
N31:0/4 IS A USER DIAGNOSTIC FLAG INDICATING A LOCAL ERROR. THE BUFFER FULL BIT
MAY NEED TO BE DELETED.
| |LOCAL LOCAL |
| |SERIAL ERROR |
| BTR 1 |COMM. FAULT |
| DN BIT |FAULT STORE |
| N30:0 N31:1 N31:0 |
+––––] [––––+–––] [––––+–––––––––––––––––––––––––––––––––––––––––––––––( )–––––+
| 13 | 0 | 4 |
| |LOCAL | |
| |BACKPLANE | |
| |FAULT | |
| | N31:1 | |
| +–––] [––––+ |
| | 1 | |
| |LOCAL | |
| |BUFFER | |
| |FULL FAULT| |
| | N31:1 | |
| +–––] [––––+ |
| | 2 | |
| |LOCAL | |
| |PROGRAM | |
| |ERROR | |
| |FAULT | |
| | N31:1 | |
| +–––] [––––+ |
| 3 |
Rung 11:4
N31:0/12 IS A USER DIAGNOSTIC FLAG INDICATING A REMOTE ERROR. THE BUFFER FULL
BIT MAY NEED TO BE DELETED.
| |REMOTE REMOTE |
| |SERIAL ERROR |
| BTR 1 |COMM. FAULT |
| DN BIT |FAULT STORE |
| N30:0 N31:1 N31:0 |
+––––] [––––+–––] [––––+–––––––––––––––––––––––––––––––––––––––––––––––( )–––––+
| 13 | 8 | 12 |
| |REMOTE | |
| |BACKPLANE | |
| |FAULT | |
| | N31:1 | |
| +–––] [––––+ |
| | 9 | |
| |REMOTE | |
| |BUFFER | |
| |FULL FAULT| |
| | N31:1 | |
| +–––] [––––+ |
| | 10 | |
| |REMOTE | |
| |PROGRAM | |
| |ERROR | |
| |FAULT | |
| | N31:1 | |
| +–––] [––––+ |
| 11 |