Operator '__POSITION'

The operator is an extension of the IEC 61131-1 standard.

At runtime, the operator yields the position of a variable in the declaration part or in the implementation part of a POU. The operator has to be assigned the variables of type ‎STRING‎ in the declaration part or in the implementation part.

Result of ‎__POSITION‎

Declaration part: ‎'Line <line number> (Decl)'‎
Implementation part: ‎'Line <line number>, Column <column number> (Impl)'‎

Example

PROGRAM PROG1
VAR
	strPOS : STRING := __POSITION();  //Yields the line number of this declaration
	strlocalPOS : STRING;
END_VAR

	strlocalPOS := __POSITION();      //Yields the line and column number of this assignment