Rockwell Automation 1756-L6x_L7x ControlLogix System User Manual - Manual (Page 189)

Rockwell Automation Publication 1756-UM001O-EN-P - October 2014 189
Troubleshoot the Module Appendix A
Major Fault Messages
The Major Fault T XX:CXX message on the controller status display indicates
major faults. Table 50 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
1 1 Run Mode Powerup
1 60 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
3 21
3 23 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
4 82 SFC Jump Back Failure
4 83 Value Out of Range
4 84 Stack Overflow
4 89 Invalid Target Step
4 90 Invalid Instruction
4 91 Invalid Context
4 92 Invalid Action
4 990 User-defined
4 991
4 992
4 993
4 994
4 995
4 996
4 997
4 998
4 999