Rockwell Automation 1746-BAS-T SLC 500 Basic Basic-T Modules - Manual (Page 69)

Publication 1746-UM004B-EN-P - December 2005
Programming Overview 4-21
The SLC processor and module operate independently of each other.
The following CALLs allow the SLC processor and module to interrupt
each other.
SLC Fault Codes Fault codes are reported in word 6 of the SLC processor status file.
The format of the status word and applicable error codes are shown
below:
Figure 4.7 SLC Fault Code Placement
CALL Purpose
CALL 16 Enables interrupt capability when a DF1 packet is received.
CALL 17 Disables the DF1 packet interrupt capability.
CALL 20 Enables SLC processor interrupt capability.
CALL 21 Disables SLC processor interrupt capability.
CALL 26 Generates an interrupt to the SLC processor.
4-digit Hex Number
Slot Number Fault Code
SLC
Fault
Code Description Possible Cause Recommended Action
57H Module has not
responded to a lock
shared memory command
within the required time
limit. Module hardware problem. Cycle power to the
module to re-initialize
parameters and re-run
the program.
Module internal stacks,
pointers (if XBY instructions
are used) are corrupted by the
user program.
58H Module generated a
generic fault. Module hardware problem. Verify that module is
configured correctly
(correct I/O and M files).
Cycle power to the
module to re-initialize
parameters and re-run
the program.
Module internal stacks,
pointers (if XBY instructions
are used) are corrupted by the
user program.
59H Module did not complete
a command within the
required time limit. Module hardware problem. Cycle power to the
module to re-initialize
parameters and re-run
the program.
Module internal stacks,
pointers (if XBY instructions
are used) are corrupted by the
user program.