Rockwell Automation 1775-MX_S4A,D17756.3.1 User Manual PLC-3 BACKUP CONC(OR.DU1 User Manual
Page 47
Operating a Backup System
Chapter 3
3-7
Restart Procedure Method 2
1.
For the scanner backup configuration, place the switch, located in the
backup cable, so that the processor currently controlling outputs is the
primary processor.
2.
Reconnect the following cables:
a.
For scanner backup configuration, reconnect the backup cable to
the number one scanner module in the repaired processor.
b.
For the MX backup configuration, reconnect the communication
cables to the RCVG and XMTG connectors on the memory
communication module in the faulted processor.
3.
Reconnect the terminal swing arms to all scanner modules in the
repaired processor.
4.
Turn on the repaired processor.
5.
Check the configuration of each I/O channel, values in the data
tables, and the program in the repaired processor. If there are any
incorrect entries, correct them before proceeding. Manually
reconfigure the repaired processor, if necessary.
6.
Select run mode in the repaired processor.
Restart Procedure Method 3
1.
Reconnect the backup cable to the number one scanner in the repaired
processor.
2.
Reconnect the terminal swing arms to all scanner modules in the
repaired processor.
3.
Turn on the repaired processor.
4.
Check the configuration of each I/O channel, values in the data
tables, and the program in the repaired processor. If there are any
incorrect entries, correct them before proceeding. Manually
reconfigure the repaired processor, if necessary.
5.
Select run mode in the repaired processor.