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Compiler error C0185dl-permalink__symbolPermalink

Message: It is not possible to perform component access '.', index access '[]' or call '()' on result of function call. Assign result to help variable first.

Possible error cause: Component or index access to the result of a function call is performed.

Error correction: Assign the result to a variable in order to access.

Example of the error:

PROGRAM PLC_PRG
VAR
	it : ITF;
END_VAR

POU_1()[0].METH1();

FUNCTION POU_1 : ARRAY[0..0] OF ITF

INTERFACE ITF

METHOD METH1

--> C0185: It is not possible to perform component access '.', index access '[]' or call '()' on result of function call. Assign result to help variable first.