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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.
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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:
AND
Is it the same or not? Is it nothing means? It is only convention.
Last edit: sarunas 2023-08-16
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.