Description:
When parameterizing the RF170C communication module, you must set the DP Alarm Mode of the ET200pro header module to DPV1.

Fig. 01

Unlike the other communication modules, the RF170C works only with DPV1.
If you use DPV0, you get error messages (error_bus 80A2) reported by the RFID standard block FB45 / FC45.

Detailed information is available in the operating instructions SIMATIC Sensors RFID systems RF170C communication module RF170C in Chapter 5 Parameter settings in Entry ID: 32622825.