6 Functions
6.11
Time synchronisation
The time of the SIGMASYS control and indicating panels can be synchronised once a day
with the Time synchronisation” feature.
The synchronising pulse is derived from the main clock and transmitted via an operating input
to a contact coupler, minitransponder or transponder / 4STE.
Synchronisation only requires a single operating step in SIGMANET.
The date must be set manually when putting the GMA into service.
The synchronisation time is set to 4:00 and the pulse length to 3 seconds (minimum).
6.12
Variable SIGMALOOP cycle time
The response time of a zone operating panel used as a status indicator panel can be reduced
by setting the cycle time to 250 ms in a BMT loop/spur
Prerequisite:
Separate loop/spur for zone operating panel (no BMT detectors can be operated in this
loop/spur as these detectors operate with a 1-second cycle).
6.13
BMT/IMT mixed mode
Mixed mode means that the BMT and IMT branches can be operated simultaneously within a
SIGMASYS control and indicating panel. This is achieved by creating a BMT and an IMT de-
tector object. Branches can be mixed within an MPC module.
Only one branch can be selected within a monitored alarm line.
The standard outputs are activated as follows within a SIGMASYS control and indicating
panel in the case of IMT/BMT mixed mode
Name
General alarm
BMT objects and control and indicating panel object
General fault
BMT/IMT objects and control and indicating panel object
Minus AL
BMT objects and control and indicating panel object
Alarm transceiver (AT)
BMT AT (1)
Local alarm (AL)
IMT AT (1)
BMT AT (2) as of Version 2.6
Table 17: BMT/IMT mixed mode
6.14
Alarm counters
The various alarm counters are freely created and parameterised on the VEA module. The
status can be displayed by pressing a function key or entering an operating input
Name
In SIGMAPLAN
Text 3
Trip criteria
Control sources
DIN counter
AZ1
DIN-C
Alarms (BMT+IMT)
Objects
VdS counter
AZ2
VDS-C
Alarms (BMT only)
BMT ATs and
alerting facilities
General counter
AZ1
DIN-C
Alarms (BMT+IMT)
faults/alarms inspection
Objects, zones
and groups
Table 18: Alarm counters
Multifunctional Danger Control and Indicating Panels SIGMASYS C and M (M-Modules)
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