Hi, was wondering if you could help. I have a slave module ET200 with 6ES7 331 7TF01 0AB0 AI module on Profibus that I am trying to set up. If the Slave only allows DPV0 with 2 wire transmitter, is it possible to modify the GSD File to allow us to select 4 wire or 2 wire (allow the card to power the analogue inputs). Or can this only be done by the manufacturer of the slave by doing a firmware ugrade or something similiar. Apprecaite any advice on this. Thanks - Rpax