4 Fault Isolation
4.9 HPMM Alphanumeric Display
370
HPM High-Performance Process Manager Service
R688
Honeywell
December 2020
SWAP sequence (non- Detailed-Display mode)
If the Detailed Display mode is not enabled, then the swap sequence described on the previous page
would not display any of the test sequence numbers as listed in the following table for HPMM 1 and
HPMM 2.
Table 76 Alphanumeric Display for HPMM Swapping Sequence (Non-Detailed Display
Mode)
HPMM 1
HPMM 2
Description
OK39
B 40
Run state (UCN node 39).
SWAP
OK39
HPMM swap command received.
SWAP
SWAP
OK39
OK39
HPMM 1 begins RAM Retention startup diagnostics.
HPMM 1 completes RAM Retention startup diagnostics.
SYNC
OK39
Secondary HPMM performs database synchronization
B 40
OK39
HPMM swap complete.
HPMM failover
In the event of an HPMM failover, the primary HPMM transitions to the Fail state and the secondary
HPMM becomes the primary.
Failover sequence (Detailed Display mode)
An example of a display sequence for a failover when a RAM parity error occurs with the Detailed
Display mode enabled is listed in the following table for HPMM 1 and HPMM 2.
Table 77 Alphanumeric Display for Failover HPMM Swapping Sequence (Detailed Display
Mode)
HPMM 1
HPMM 2
Description
OK39
B 40
Run state (UCN node 39)
F139
OK39
HPMM 1 failure
COMM
OK39
Flag -- Communications processor Hard failure code is next
0010
OK39
HPMM 1 Communications processor failure: Local RAM
parity error
CTRL
OK39
Flag -- Control processor Hard failure code is next
FFF3
OK39
HPMM (file 1) Control processor failure: No response from
Communications processor.
Blank
OK39
F139
OK39
HPMM 1 failure
COMM
OK39
Flag -- processor Hard failure code is next
0010
OK39
HPMM 1 Communications processor failure: Local RAM
parity error
CTRL
OK39
Flag -- Control processor Hard failure code is next
FFF3
OK39
HPMM (file 1) Control processor failure: No response from
Communications processor
The above failure pattern repeats indefinitely or until the Detailed-display mode is
disabled.
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