Applied Automation, August 2007

It seems like a simple request. The plant manager calls you into his office and says, "Process Engineering wants to connect six more field instruments to the distributed control system. They've already ordered another analog input board for the DCS, so all you have to do is run six twisted pairs from Unit A to the control Room. Moore Industries expert Gary Prentice explains how a peer-to-peer distributed I/O system is a simple answer to complex problems, such as adding instruments when no spare wiring exists.

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