Compiler Warning C0526

Message: Default value is not constant

Possible error cause: The initial value of a VAR_INPUT does not use a constant, but the result of a function call.

Error correction: Use a constant as the initial value.

Example of the warning:

FUNCTION F2: INT

FUNCTION F1: INT
VAR_INPUT
      iPar : INT := F2();
      xPar : BOOL;
END_VAR

The declaration of the variable iPar produces the following warning.

Message:

C0526: Default value is not constant