CODESYS Forge - CODESYS Forge / Talk / Codesys V2.3 🇬🇧: Using Output variables of a function block

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 ...
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

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

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

ljean - 2008-02-13

This problem has been fixed with CoDeSys 2.3.9.0

Thanks

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

Log in to post a comment.