May I ask if the standards specify any situations in which a DCS should be used instead of a PLC?
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May I ask if the standards specify any situations in which a DCS should be used instead of a PLC? Just the common cases, please advise
DCS is generally used for systems with a large scale, numerous loops, and many analog input points. PLCs are generally used more in small, standalone devices
There are no regulations. When it comes to making investment decisions, in most cases, processes that require complex procedures or high safety standards will involve the use of DCS. PLC is for simple operations. Of course, DCS also includes a lot of PLC control