DNF Controls GTP-32 - Manual (Page 21)

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COMBINATORIAL EVENTS
The Combinatorial Logic Option for the GTP-32 delivers Tally Intelligence. In
addition to one Event controlling one Action, the Combinatorial Logic Option allows
one Action to be controlled by multiple Events based upon a user-entered definition.
Now, diode OR’ing and other “glue logic” circuits are no longer necessary.
The Combinatorial Event Definition screen, available through the GTP-32’s web
interface is used by the operator to create a combinatorial event definition.
The combinatorial event definition consists of:
Unique user entered name (event identifier)
User entered equation that contains a list of source events to monitor and logical
operators (AND, OR, NOT, XOR, NAND, and NOR).
User selected “Available: Yes” or “Available: No” allows the definition to be
temporarily disabled.
Combinatorial Event Definitions may be added, deleted, or modified at any time
without affecting system operation or requiring a system reboot. Combinatorial
Event Definitions may also be nested in other Combinatorial Event Definitions.
After defining Combinatorial Event Definitions, their event identifiers may be used in
the Channel Event Monitoring Table as a source to affect local GPOs. Remote GTP-
32s may also use these event identifiers in their Channel Event Monitoring Tables to
affect GPOs.
The individual components of the Combinatorial Event Definition are monitored on a
real-time basis by the GTP-32. When the current states of the components cause
the definition to become true, the GPO assigned in the Event Monitoring Table will be
controlled by the associated “ON Function”. When the current states of the
components cause the definition to become false, the assigned GPO will be controlled
by the associated “OFF Function”.