Hi, See the Janitza manual page 56-> http://download.janitza.de/download_direkt/Manuals/002__UMG96S/UMG96S_Manual_English_-_version_with_external_power_supply.pdf It says you have to write the required profile no. into the PLC's output word (byte), and the Janitza writes back the requested datas into the input area. You can choose, wich "data table" do you need. regards gyulat