Semantic Error (SEM1237): The usage of the function block VAR_IN_OUT parameter '...' is not allowed in user methods.
In methods, only local variables and input variables are allowed ('Usage' = 'Local' or 'Input'). 'Usage' = 'InOut' which declares VAR_IN_OUT variables according to the IEC 61131 standard is only allowed in function block POUs.
| Further Info
Refer to the topics "Methods" and "Variable Properties and Declaration Keywords" for detailed information. |