4 Fault Isolation
4.9 HPMM Alphanumeric Display
R688 HPM High-Performance Process Manager Service 365
December 2020 Honeywell
Table 70 Alphanumeric Display for HPMM Cold Startup Failure Sequence
Alive state (file 2, UCN node 39)
Failure (file 2, UCN node 39)
Flag – Communications processor failure code
follows
Communications processor failure: bad or
unexpected exception.
Flag – Control processor failure code follows.
Control processor failure code. No failure reported
(because Control processor was still being held in
reset condition at this point).
The failure pattern repeats
Flag – Communications processor failure code
follows.
ATTENTION
The non-Detailed Display mode blinks at a 1/2 second rate when the failure is displayed.
HPMM Load display sequence
The HPMM remains in the Alive state until a UCN download is initiated at the Universal Station.
Midway through the loading process, the Control processor is released from reset to perform its local
Startup diagnostics. The loading then continues by using the Communications processor.
Alphanumeric display sequence for HPMM load
An example of the Alphanumeric display sequence during the personality download process is listed in
the following table for the Detailed Display mode and non-Detailed Display mode.
Table 71 Alphanumeric Display for Load Sequence
In the Alive state (right file, UCN node 7).
Start the Communications processor’s personality
image download.
Display blinks at 1/2 second rate.
Complete Communications processor personality
image download.