Newfield Automation Limited were approached by the customer for two separate projects. The first was for upgrading the standard plant process network which provides communications over CAT5 Ethernet for the plant PLC’s and SCADA to a more robust solution. The second was to provide additional process safety using hardwired trip amps and safety relays in various positions on plant. After an initial evaluation period a solution was put forward to combine both projects. Case Study – Safety PLC, Redundant Networks & ATEX Ratings Chemical Company in Manchester Area A redundant managed fibre optic network was installed using Rockwell Stratix switches and CST fibre optic to provide a robust network for t

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