What is the difference between PLC and DCS?

 

It mainly depends on the application, PLC is fine for smaller stand alone systems up to a certain number of I/O, if you have a large degree of distributed I/O then you may want to look at some form or DCS.
Max.

 

In a petrochemical plant or refinery, there will be an operator's station with screens and buttons, monitoring tank levels, flow transmitters, pressure transmitters, and controlling pumps and valves all over the massive expanses of the plant grounds. That's a DCS. On an injection molding machine or a winder, there will be a small electronic brain that controls rotational proportions or valves sequences. That's a PLC.

 

A PLC is a piece of hardware, while DCS is a control strategy.

 

What is the difference between PLC and DCS?

Maybe do an in-depth investigation of each and come up with your own conclusions?
Max.

 

What is the difference between PLC and DCS?

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