Rockwell Automation 1761-HHP-B30 MicroLogix 1000 with Hand-Held Programmer (HHP) - Manual (Page 378)

Chapter 20
Troubleshooting Your System
20–10
Use the following error recovery model to help you diagnose software and
hardware problems in the micro controller. The model provides common
questions you might ask to help troubleshoot your system. Refer to the
recommended pages within the model and to S6 of the status file on page
B–8 for further help.
Start
Identify the error code
and description.
Refer to appendix B for
probable cause and
recommended action.
Return controller to
RRUN, RCSN, or,
RSSN mode.
Clear fault using either
function key F9 or F10.
Place the controller in
RPRG mode.
Correct the condition
causing the fault.
Test and verify system
operation.
Tighten wire
connections.
Check power.
Does the
controller have power
supplied?
Refer to page 20–2
for probable cause and
recommended action.
Is the error hardware
related?
Are the wire
connections tight?
Is the Power
LED On?
Is the Run LED On
constantly?
Is an input or
output LED showing
proper status?
Refer to page 20–2
for probable cause and
recommended action.
No
Yes
No
No No
Yes
Yes
Yes
Yes
Is the Fault LED On?
No
No
Yes
Refer to page 20–2
for probable cause and
recommended action.
Yes
No
Controller Error Recovery
Model