User manual
Rockwell Automation Publication 1756-UM001O-EN-P - October 2014 189
Troubleshoot the Module Appendix A
Major Fault Messages
The Major Fault TXX:CXX message on the controller status display indicates
major faults. Ta b l e 5 0
lists fault types, codes, and the associated messages as they
are shown on the status display.
For detailed descriptions and suggested recovery methods for major faults, see the
Logix5000 Major, Minor, and I/O Fault Codes Programming Manual,
publication 1756-PM014
.
Table 50 - Major Fault Status Messages
Type Code Message
11 Run Mode Powerup
160 Nonrecoverable
1 61 Nonrecoverable – Diagnostics Saved on CF Card
1 62 Nonrecoverable – Diagnostics and Program Saved on SD card
3 16 I/O Connection Failure
3 20 Chassis Failure
321
323 Connection Failure
4 16 Unknown Instruction
4 20 Invalid Array Subscript
4 21 Control Structure LEN or POS < 0
4 31 Invalid JSR Parameter
4 34 Timer Failure
4 42 Invalid JMP Target
482 SFC Jump Back Failure
483 Value Out of Range
484 Stack Overflow
4 89 Invalid Target Step
4 90 Invalid Instruction
4 91 Invalid Context
4 92 Invalid Action
4 990 User-defined
4991
4992
4993
4994
4995
4996
4997
4998
4999