Rockwell Automation 1747-PT1, D1747NP002 Hand-Held Terminal User Manual
Page 387
Chapter 27
The Status File
27–19
Fault Classification
Processor
Description
User
Address
Error
Code
(Hex)
Runtime Errors
Non-User
Non-Recov
Recov
5/02
5/01,
Fixed
S:6
0020
A minor error bit is set at the end of the scan. (See S:5 minor
error bits.)
X
•
•
0021
Remote power failure of an expansion I/O rack occurred.
Note: A modular system that encounters an overvoltage or
overcurrent condition in any of its power supplies can
produce any of the I/O error codes listed on pages 27–21 and
27–22 (instead of code 0021). The overvoltage or
overcurrent condition is indicated by the power supply LED
being off.
ATTENTION: Fixed and FRN 1 to 4 SLC 5/01
processors – If the remote power failure occurred while
the processor was in the Run mode, error 0021 will
cause the major error halted bit (S:1/13) to be cleared
at the next powerup of the local rack.
SLC 5/02 processors and FRN 5 SLC 5/01 processors
– Power to the local rack does not need to be cycled to
resume the Run mode. Once the remote rack is
re-powered, the CPU will restart the system.
!
X
•
•
0022
User watchdog scan time exceeded.
X
•
•
0023
Invalid or non-existent STI interrupt file.
X
•
0024
Invalid STI interrupt interval (greater than 2550 ms or
negative).
X
•
0025
Excessive stack depth/JSR calls for STI routine.
X
•
0026
Excessive stack depth/JSR calls for I/O interrupt routine.
X
•
0027
Excessive stack depth/JSR calls for user fault routine.
X
•
0028
Invalid or non-existent “startup protection” fault routine file
value.
X
•
0029
Indexed address reference outside of entire data file space
(range of B3:0 through the last file).
X
•
002A
Indexed address reference beyond specific referenced data
file.
X
•