Test and operation in TC/BSD
You can use the command "ls /dev/" to display all devices connected to your PC (see Fig. 5). This also includes the RFID reader. By default, this is recognized as virtual COM port ttyU0 and can be addressed via it. You can also use this port to address the RFID reader via TwinCAT.
Application in TwinCAT
In TwinCAT, you can integrate the devices via the virtual COM port and the TwinCAT function TF6340. In TwinCAT/BSD, for example, ttyU0 corresponds to COM port 0.
An example of how to use the RFID reader in TwinCAT can be found here:
You can adapt, extend or integrate the example according to your needs.