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ST Function Block Call

Calling a function block in ST

Syntax

<FB instance>(<FB input variable>:=<value or address>\|, <other FB input variables>);

Example 78. Example
TMR:TON;

TMR (IN:=%OX5, PT:=T#300ms);
varA:=TMR.Q;

The timer function block TON is instantiated in TMR:TON and called with assignments for the parameters IN and PT.

The output Q is addressed with TMR.Q and assigned to the variable varA.



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