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My first suggestion was to read the AB memory areas using SCADA and Ethernet and then report relevent data back to the Omron system but they do not think this will be quick enough and are looking for alternatives eg. direct Ethernet to AB from CS1. As I see it, there are two alternatives as follows: Using Ethernet communications to send/receive data with AB unit. Using Devicenet to exchange data (one unit configured as slave, other as master). My questions are: Do you know of anyone who has successfully linked Omron and AB systems and which hardware they used? Are there any coding examples available - more than outlined in the manuals? What are your recommendations?