Rockwell Automation T80020 Application Note Diagnostic Procedures - Manual (Page 66)

Trusted TM
AN-T80020 Diagnostics Procedure
Issue 12 Feb 11 AN-T80020 66
MP_CONFIGURATION_ERROR
0x7300
Modules:All This fault indicates that the configuration data (from the System.INI file)
on this slice is discrepant with respect to the other two slices. After
loading the configuration data, the processor compares the CRC data
checks returned from the three slices. If they are different, this fault is
raised on the discrepant slice (or all slices if there is a three-way
discrepancy).
It may be a side-effect of other IMB communications faults causing
data corruptions.
It will occur soon after going into Standby mode. Restart the module to
load the configuration again. If it keeps failing, return the module for
repair.
Action:Slice fault
MP_SLICE_NOT_RESPONDING
0x7350
Modules:All This fault indicates that the I/O module slice is not communicating with
the processor. The fault code may be seen on the HKEEPING board
even though the other channels for that slice are zero (because there is
no communications). This fault can never appear in a log.
The likely reason is that the slice has not started. The slice is still in
boot mode, indicated by the slice Healthy LED flashing red (the same
indication as for a slice fault).
A large system log inside the I/O module will delay it from starting up on
all firmware up to 130. This is fixed in later issues of firmware, some of
which are released. If you can successfully restart the module, erase
its logs.
If the slice will not start and go healthy in an unused slot, return the
module for repair.
Action:None; slice stays in boot mode
MP_SAFETY_LAYER_ERROR
0x7400
Modules:All This tests the I/O module’s Safety Layer, primarily the IMB voting and
fault detection circuits in the host interface. The MP occasionally
requests a test packet. The response packet contains a test pattern
which is generated by exercising the voter/fault detector logic in the
safety layer. The processor compares the response packet to the
expected pattern to determine the health of the safety layer.
Faults appearing on the same slice on several modules in a chassis
indicates expander module or bus faults.
If the fault appears on only one module, and it returns repeatedly after
pressing Reset, return the module for repair.
Action:Slice fault
MP_PACKET_ERROR
0x7401
Modules:All This indicates a fault in the Error Packet Generator logic. The
processor occasionally sends a packet with a faulty error code and
verifies that the module signals a Packet Error. Return the module for
repair.
Action:Slice fault