Rev 1.0
SignalFire Telemetry
15
Relay Control Logic
The relay control logic section is used to set the trigger thresholds for the selected source data
register.
Run System (Energize Relay)
– Select the logic operand to use for the “energize” logic evaluation.
Value
– The value that the relay will be energized. Note that the energized state is the normal
“operating” state of the relay.
Shutdown System (De-Energize Relay)
– The logic operand to use for the “de-energize” logic
evaluation. This will automatically be the opposite of the selection for the energize case. Note that the
de-energized state is the SAFE state of the relay.
Value
– The value that the relay will be de-energized. Note that the de-energize state is the “safe”
state of the relay.
Number of Readings
– This field contains the number of check-in packets that must be received in a
row that are above (or below) the logic threshold for the de-energize condition. This is useful so that
a single (possibly a glitch) reading does not cause a shut-down. The default is 1 where each check-in
will cause the rule to be evaluated and acted on. A single reading that satisfies the run system
(energize) condition will cause the relay to energize.
