Rockwell Automation T80020 Application Note Diagnostic Procedures - Manual (Page 38)

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AN-T80020 Diagnostics Procedure
Issue 12 Feb 11 AN-T80020 38
APPENDIX A. ERROR CODE DESCRIPTIONS
This section provides detailed descriptions for each of the error codes reported by I/O modules,
including what is wrong and what to do.
Error codes are described in four digit hexadecimal numbers. The first two digits describe the category
of error, and for many categories the last two digits are a “subcode”, narrowing down which part of the
module was noted as faulty. Fault codes above 0x8000 cannot be cleared by pressing Reset.
“Subcodes” specifiy a faulty channel number, group number, or other attribute. Group number always
designates an output power group. Channel number can designate an input/output channel or a
housekeeping data channel.
“Action” specifies how the slice state or channel state is affected by the fault. The slice can either:
• Continue running. The Healthy LED will flash red. The slice will still communicate, so the fault
is reported in the Toolset debugger and the slice system log can be collected. Note that the
Healthy LED also flashes red when the slice is still in its boot mode and has not started the
firmware.
• Be turned off (OFFLINE). The Healthy LED will be steady red. The slice is not communicating,
so the only way to diagnose it is to swap or remove it, restart the module and collect the slice
system log.
Keep a logbook for recording error codes from I/O modules. Record the error code, module position
(chassis and slot or reference number), date and time. If the advice in this document for that error code
is to act only if it is persistent (returns later after pressing Reset), use the logbook to look for earlier
records of the same fault.