Troubleshooting
7-2
TI545/TI555 System Manual
7.1 Troubleshooting by Using Auxiliary Functions
The
TI545/TI555 CPU has self-checking and diagnostic capabilities that can
be used for troubleshooting purposes. The diagnostics and self-checks are
accessible through the Auxiliary Function menu on your programming
device.
When you display the Auxiliary Function menu, the following functions are
available for resetting the CPU, initiating diagnostics or displaying
diagnostic information:
• Power
-up restart — AUX 10.
•
Partial restart — AUX 1
1.
•
Complete restart — AUX 12.
•
Compare PLC to Disk — AUX 17.
•
Run PLC diagnostics — AUX 20.
•
Display failed I/O — AUX 25.
•
Show PLC diagnostic cell — AUX 29.
AUX Function 10 (power
-up restart), AUX Function 1
1 (partial restart), and
AUX Function 12 (complete restart) are restart/clear functions. See
T
able 7-1 for AUX Function 10, 1
1, and 12 restart states.
Overview
Power
-up Restart,
Partial Restart, and
Complete Restart
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