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Using Output variables of a function block

Forum: Codesys V2.3 🇬🇧

Created: 2008-01-09

Updated: 2008-02-13

ljean - 2008-01-09

Here are 2 different ways to access the output variable of a FB. It looks similar but it seems that the 2nd one cause crash.

I had the problem with REAL variables. It is Ok with the 1st method.

I am using the Coldfire compiler.

Is the 2nd way correct?

MyFunctionBlock(VarInput1:='aa', VarInput2:=22, VarOutput1=>LocalVar1, VarOutput2=>LocalVar2); IF LocalVar1 THEN x := LocalVar2 * 3; ... END_IF ...

MyFunctionBlock(VarInput1:='aa', VarInput2:=22); IF MyFunctionBlock.VarOutput1 THEN x := MyFunctionBlock.VarOutput2 * 3; ... END_IF ...
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Ralph Holz - 2008-01-09

Both codes look correct and should be possible. Did you check your project by changing the Target to another type of PLC PLCWinNT for example?

Regards Ralph

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ljean - 2008-02-13

This problem has been fixed with CoDeSys 2.3.9.0

Thanks

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