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    Compiler Error C0091

    Message: Recursion in base function block list: <function name>

    Possible error cause: A base function block is extended by itself.

    Error correction: Recursion in base function block lists is not possible.

    Example 374. Example of the error:
    PROGRAM PLC_PRG
VAR
     inst : FB;
END_VAR


FUNCTION_BLOCK FB EXTENDS FB
VAR
END_VAR

    Message:

    C0091: Recursion in base function block list: FB -> FB