Documentation

SR FlipFlop (IEC 61131)

Block name

SR

ST call

PROGRAM SR_DEMO
	 VAR
	 BOOL1,BOOL2,BOOL3: BOOL;
	 FB:SR;
	END_VAR
    FB(R:=BOOL2,S1:=BOOL3,Q1=>BOOL1);
END_PROGRAM

Description

The circuit acts as a classical RS flip-flop circuit. If both inputs are true the output is true.

Inputs

Input Type Description Default value
S1 ANY_BOOL Set False
R ANY_BOOL Reset False

Outputs

Output Type Description
Q1 BOOL Output of the RS circuit

Application example

 

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