Rockwell Automation Publication 5069-UM002A-EN-P - January 2019 279
Status Indicators Appendix A
Major Fault Messages
The Major Fault TXX:CXX message on the controller status display indicates
major faults.
Table 33 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 Logix 5000 Major, Minor, and I/O Fault Codes Programming Manual,
publication
1756-PM014.
Table 33 - Major Fault Status Messages
Type Code Message
1 1 Run Mode Powerup
1 60 Nonrecoverable
1 61 Nonrecoverable – Diagnostics Saved on SD Card
3 16 I/O Connection Failure
3 20 Chassis Failure
321
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
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