Rockwell Automation T80020 Application Note Diagnostic Procedures - Manual (Page 42)

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AN-T80020 Diagnostics Procedure
Issue 12 Feb 11 AN-T80020 42
FIA_SLICE_STATE_DISCREP
0x0805
Modules:All except 8442 and
8480 If a slice is commanded to change to a new state, and this state is
different to the command sent to the other two states (‘Byzantine’
voting), it will increment a counter every 300ms. After 400 counts (2
minutes), it will signal this fault and go OFFLINE because its state does
not agree with the other two slices. This indicates a bus interface fault;
the module should be returned for repair.
The slice would already have gone to the SHUTDOWN state before
this fault, as a result of an IMB timeout.
Action:slice OFFLINE
FIA_OBSOLETE_
CALIBRATION
0x0806
Modules:Input Detects an obsolete calibration table. This error occurs when older
modules (prior to build 7) are updated. The module will not start. The
module must be re-calibrated to eliminate the error. Return the module
for repair.
Action:Slice will not boot
HIU_POWER_FEED
0x0900 (feed A), 0x901 (feed B)
Modules:All Detects a failed 24V power rail. A tripped chassis/system supply will
cause these faults on nearly every I/O module slice within the chassis
or system. If only one module reports these faults consistently, return
the module for repair.
Action: slice fault