Can a PLC be equipped with a safety barrier?
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Can a PLC be equipped with a safety barrier? Can intrinsically safe signals be connected?
Sure. An intrinsically safe circuit usually refers to field instruments, cables, and safety barriers. It has nothing to do with the system or the card components.
Safety barriers are usually installed externally, inside the PLC cabinet; the PLC cards only need to receive the standard signals sent by the safety barriers.
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Is it not necessary to set up another safety enclosure? Can the safety barrier be connected directly to the PLC card? Different from the safety barrier cabinet of DCS?
A single cabinet for the safety barrier is sufficient. There’s no space; it can be placed inside the controller cabinet as well. I don’t understand what you mean
This brother might use fewer PLCs; the safety barriers used with those PLCs are the same as those used with DCS systems. There may be differences in the models of the signal sources, but everything else is the same. If there are few points where safety guards need to be installed, you can find a place in the PLC cabinet to install a guide rail, and then supply a 24V signal to those points. If the quantity is large, a separate safety barrier cabinet can be installed.
It can be done right in a cabinet
Sure, here is a detailed introduction to the PLC cabinet: http://www.fbzyg.com/chanpin/