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Quirks between CODESYS PlcOpenXml data and B&R Automation studio

Here we list all the known quirks and differences between the source and the B&R Automation studio

Data types

Function blocks

Functions

  • AS function cannot return a string, array or a struct but Codesys can. These functions need to be converted that they return a BOOL and add a VAR_OUTPUT where the correct return result will be stored. This problem is solved partially by the automatic porter

Pous in general

  • Codesys uses syntax POINTER TO while AS uses REFERENCE TO. This problem is solved during the automatic porting
  • Pointer dereferencing is not the same between systems. Needs to be fixed manually