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Compiler error C0149dl-permalink__symbolPermalink

Message: Variable declarations are not allowed in interfaces

Possible error cause: An attempt is made to define a variable in an interface.

Error correction: Do not define variables in interfaces.

Example of the error:

PROGRAM PLC_PRG 
VAR
	inst : ITF;
END_VAR	

INTERFACE ITF
VAR_INPUT
	i : INT;
END_VAR

--> C0149: Variable declarations are not allowed in interfaces