Manual

3-28 Operating Characteristics
3.5 Alarm Management
The GES-1993 has a fixed set of alarm conditions which can occur. Each alarm is
identified by a unique Alarm ID (ALID), and has an associated severity code
(ALCD) and alarm text (ALTX). The possible alarms are shown in "Appendix C --
Alarms".
GWGEM automatically handles Alarm management.
FmNT configures Alarms in the GCD file, and signals alarm state changes using
GemNoteAlarmEvent ([ RefGWGEMUser ] p 89 ‘Alarm Management’).
FmNT supports all alarms defined in Appendix C. Excess temperatures, an Interlock
safety breach, a service request to refill the adhesive dispenser, and power failure are
all reported to the Host as alarms. At the time of publishing this manual, only the
Millennium Series systems support interlock and power failure alarms.
Temperature alarms will be activated when any of the heater channels go out of
range. Host should use TempCurrent and TempNeedleCurrent SVs to determine the
channel(s) responsible for activation of this alarm. Alarm Off event will be sent
when all channels are within range.
3.5.1 Alarm States
Each alarm (ALID) can be in either of two states: CLEAR (off) or SET (on).
Several alarms can be SET simultaneously. At power up, all Alarms are cleared.
3.5.2 Reporting
The GES-1993 reports alarms to the Host when they occur, without Host action,
using the alarm report message S5F1 or configurable option, depending on
CONFIGALARMS. The transition of an ALID from OFF to ON is referred to as
"going on" or "leading edge", and the transition from ON to OFF as "going off" or
"trailing edge". The Equipment reports both leading and trailing edge transitions.
The equipment has two CEIDs for each ALID, one for the "going on" transition and
one for the "going off" transition. In addition to the Alarm Report, the Equipment
sends an Event Report if the CEID associated with the alarm change is enabled. If
the CEID is enabled and no report is defined, a "null" Event Report is sent. The
event report for an alarm transition is sent if it is enabled, even if the reporting for
the alarm is disabled.