Honeywell HPM Service page 362

4 Fault Isolation
4.9 HPMM Alphanumeric Display
TIP

The display message listed in the table above blinks at a 1/2 second rate
to indicate the Communications processor is still running.

During an HPM personality load for an EHPM node, the message
continues to scroll and repeat. However, the Afnn will be replaced with
Lfnn (L=Loading).

While loading, the display changes to continuously flash Lfnn. It
continues to flash Lfnn until the EHPM node is fully loaded.
362 HPM High-Performance Process Manager Service
Honeywell
R688
December 2020