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36 lines
1.5 KiB
Plaintext
36 lines
1.5 KiB
Plaintext
6 months ago
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<?xml version="1.0" encoding="utf-8"?>
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<TcPlcObject Version="1.1.0.1" ProductVersion="3.1.4024.12">
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<POU Name="LimitValueLREAL" Id="{c413c3eb-b86b-4870-9ccc-b4a38f9398ae}" SpecialFunc="None">
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<Declaration><![CDATA[FUNCTION LimitValueLREAL : LREAL
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VAR_INPUT
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LowerLimit: LREAL; (* 1st input variable - Lower limit *)
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Input: LREAL; (* 2nd input variable *)
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UpperLimit: LREAL; (* 3rd input variable - Upper limit *)
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END_VAR
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VAR
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END_VAR
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]]></Declaration>
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<Implementation>
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<ST><![CDATA[(*
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The 1st LowerLimit input variable forms the lower and the 3rd UpperLimit input variable the upper limit value.
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If the 2nd Input variable is within this limit, it will be transferred to the output variable.
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If it is above this limit, the upper limit value will be transferred;
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if it is below this limit the lower limit value will be transferred.
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*)
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IF Input > UpperLimit THEN
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LimitValueLREAL := UpperLimit; (* If input is above upper limit, set output to upper limit *)
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ELSIF Input < LowerLimit THEN
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LimitValueLREAL := LowerLimit; (* If input is below lower limit, set output to lower limit *)
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ELSE
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LimitValueLREAL := Input; (* If input is within limits, pass it through *)
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END_IF;]]></ST>
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</Implementation>
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<LineIds Name="LimitValueLREAL">
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<LineId Id="18" Count="0" />
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<LineId Id="22" Count="3" />
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<LineId Id="20" Count="0" />
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<LineId Id="12" Count="5" />
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<LineId Id="7" Count="0" />
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</LineIds>
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</POU>
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</TcPlcObject>
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