Honeywell Experion PKS User Manual page 41

Alarm
Not Synchronized
Unexpected Partner on Redundancy Link
Device Index Switches Changed
Duplicate Device Index alarm
FTE A/B cable Fault Alarm
OFFNET
Temperature High Alarm
5 PROFIBUS GATEWAY MODULE (PGM) BLOCK
Description
This alarm is reported when the primary and secondary PGM are not
synchronized or not in standby.
The "Not Synchronized" alarm returns to normal upon configuring the
primary at the odd device Index or upon entering the Synchronized or
Standby state.
This alarm is reported when the PGM is explicitly configured as non-
redundant and a partner is present on the redundancy private path.
The RDNSYNCSTATE parameter is set to either PARTNERVISBL or
INCOMPATIBLE.
This alarm returns to normal after the PGM is re-configured as
redundant or if the partner is removed from the redundancy link.
This alarm is reported when the device index of the PGM is changed
when it is up and running. In such a scenario, the PGM retains the
device index value assumed at start up.
The alarm returns to normal after the device index is changed to its
original number.
Note: Changing the device index number does not affect the control
strategies and there is no loss of data. However, a soft fail is generated.
Attention
If the PGM is powered off and on, the PGM clears it memory
database and also clears the device index value.
This alarm is reported when the device index of the secondary PGM is
identical to the device index of another node.
This alarm is reported when one of the FTE cables (FTE-A/FTE-B) is
removed or is faulty. This alarm returns to normal when the FTE cable
is reconnected. In such a scenario, PGM will be up and running. Also,
the control strategies do not lose the data from the PGM.
Attention
Note that the PGM can operate with a single FTE.
This alarm is reported when both the FTE cables are removed. In such
a scenario, there is a loss of view of the PGM block. The control
strategies lose data from the PGM.
This alarm returns to normal if one of the FTE cables is re-connected.
When re-connected, the control strategies start receiving data from the
PGM.
This alarm is reported when the temperature high alarm set point value
reaches lower than the specified set point.
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