Owner's manual

Table Of Contents
Appendix C – Alarms
Since the number of alarms that FmNT reports to SECS/GEM is constantly growing, each individual
alarm will not be listed here. The alarm section of the GWGEM GCD file is automatically generated from
the FmNT source code using a custom software tool. Use the SECS/GEM message S5F5 to retrieve a list
of all alarms currently reported by your version of FmNT.
The format for each alarm is described below:
ALID Alarm ID. This number is the same as the resource identification number used by
FmNT.
ALCD Alarm Severity Code. The low-order 7-bits of ALCD specifies the severity code. The
high-order bit (bit-8) shows the current alarm state (1=SET, 0=CLEAR). Currently all
FmNT errors have a default severity code of 64.
ALTX Alarm Text. This is the actual string sent to the Host in the Alarm Report (S5F1) and is
a truncated version (first 40 characters) of the resource item used by FmNT.
ON CEID This is the Collection Event that is signaled when the alarm state changes from CLEAR
to SET ("going-on"). For all of the FmNT errors the event is FmNTError.
OFF CEID This is the Collection Event that is signaled when the alarm state changes from SET to
CLEAR ("going-off"). For all of the FmNT errors the event is FmNTErrorCleared.
Table C-1 provides some examples of common alarms and how the ALID, ALCD, ALTX, and ON/OFF
CEIDs related to them.
Table C-1 Alarms
ALID ALCD ALTX Alarm Description ON CEID OFF CEID
4 64 Heater Temperature
is Too Low
Current Temp < setpoint - band 9000 9001
5 64 Heater Temperature
is Too High
Current Temp > setpoint + band. 9000 9001
30002 64 Run Aborted The currently running program
has been aborted.
9000 9001
30167 64 Error during fiducial
finding
An error occurred during the
fiducial finding process.
9000 9001
30172 64 Loss of air pressure
detected
FmNT has detected low air
pressure.
9000 9001
Appendix C - Alarms C-1