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Inserting a number in structured text

Engineering 🇬🇧
shane2977
2020-04-24
2020-04-24

  • shane2977 - 2020-04-24

    Hi guys,

    I feel a bit dumb having to ask this but how do I insert a number into my structured text program?

    For example:

    This doesn't work
PercentBuilt := 100*CutMath.Layer / CurrentData.SetGroupNumber;

This does. OneHundred initialized with 100
PercentBuilt := OneHundred*CutMath.Layer / CurrentData.SetGroupNumber;

    I've been searching for a while but I can't seem to think of a search string that will get my answer. Putting number or value in a programming search brings back all kinds of unrelated stuff.

    Thanks
    Shane

     

  • shane2977 - 2020-04-24

    I got it. The data types were DINT's. It's an Allen Bradley thing. You can operate on data using DINT's in AB but it rounds and drops the decimal. Codesys doesn't like that apparently. When I read your post and saw the REAL values it made me realize my mistake (see what I did there). I had to switch all the variables to REAL.

    Thanks for your help again, super appreciate it :)

     

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