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Article | January 31, 1998
All-in-one HMI, PLC, I/O
Simatic C7-620 series of controllers from Siemens (Alpharetta, GA) combine a PLC, human-machine interface (HMI) and I/O components in a single, compact unit.
Comprises a Simatic S7-314 CPU with 36 digital and 5 analog I/O points expandable with an additional 512 I/O points. Available in a choice of two operator panels with NEMA 4-rated faceplates the HMI can service other controllers via a communications interface.
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