Latching Relay - Easy Electronics xLogic Micro PLC User Manual

Timing diagram
fa = Input frequency
Description of the function
The trigger measures the signals at input Fre. The pulses are captured during a configurable period G_T.
Q is set or reset according to the set thresholds. See the following calculation rule.
Calculation rule
If the threshold (On) > threshold (Off), then:
Q = 1, if fa >= On
Q = 0, if fa < Off.
If the threshold (On) < threshold (Off), then Q = 1, if
On <= fa < Off.

6.5.16 Latching relay

Short description
A signal at input S sets output Q. A signal at input R resets output Q.
Connection
Input S
Input R
Parameter
Output Q
No parameter of Latching relay can be set/modified in parameter mode .
Description
Set output Q with a signal at input S (Set).
Reset output Q with a signal at input R (Reset). Output Q is
reset if S and R are both set (reset has priority over set).
Retentivity set (on) = the status is retentive in memory.
Q is set with a signal at input S and remains set until it is
reset with signal at input R.
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