Australia Posted 21 Oct 2011 I do not know should you had any success with this Greg, but I've an exceptionally similiar difficulty. My setup is: M340 linked to Connexium Ethernet Change connected to EGX100 Gateway connected by using modbus serial Sepam Safety relay. I have written the ST in https://judahpkhbu.blogminds.com/the-greatest-guide-to-modicon-17207316