Omron CK3M Seres Hardware User Manual page 297

Use a user program to monitor this register, and cycle the power supply when an error occurs.
Bit Name
31 to 28 Reserve
27 Minor error Detects a minor error in the internal memory.
26 Fatal error
25 to 00 Reserve
CK3M/CK5M Series Programmable Multi-Axis Controller Hardware User's Manual (O036)
0: No minor error found in internal memory
1: A minor error found in internal memory
Even if a minor error occurs, operation will continue.
Detects a fatal error in the internal memory.
0: No fatal error found in internal memory
1: A fatal error found in internal memory
If a fatal error occurs, XY2-100 and SL2-100 communications will stop, and OUT0 termi-
nal and OUT1 terminal outputs will be set to L (0 V output).
Function
Appendices
A
A-41