variable

2023-08-16T13:07:30.092000Z

It is a naming convention. Nothing else. Most often you see this being used for the local (private) variables of a Function Block. It comes mainly from C++ / C# to not mix them up with (public) properties. Probably best is to search for C++ naming conventions to get more information.

variable

2023-08-16T05:20:37.493000Z

Hello,
I have a perhaps stupid question. I've noticed a lot of code where variables are named with an underscore. If I write it like this:

VAR
        ValueToUInt                     :UINT;

END_VAR

AND

VAR
        _ValueToUInt                        :UINT;
END_VAR

Is it the same or not?"

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