Ah I understand now; sorry for the confusion. I thought you were asking about the Embedded Coder or Simulink Coder which are used to turn the Simulink model into C code.
I’m not familiar with the PLC Coder tool in Simulink. According to Mathworks’ documentation, this tool can be used to deploy Structured Text code to Automation Studio. However, as far as I know this is not a tool developed by B&R so I can’t say for sure how it works.