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

        strlocalPOS := __POSITION();      //Returns row and column number of this assignment


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