WZU-485E-MOD - Modbus module for UH50../UC50...
The Modbus module is intended and preconfigured for data transmission using the Modbus RTU protocol on RS485.
Modbus module, RS485 acc. to Modbus RTU, for UH50.. (FW 5.15 and higher) and UC50.. (every firmware version)
https://sieportal.siemens.com/no-no/products-services/detail/S55563-F163?tree=CatalogTree#overview

