Nileshkumar
1 Answer
ROMOS
Nowadays you cannot really tell the difference between a PLC or a DCS. Since the PLC was integrated with Analog I/O it crosses the boundary of being just digital and crosses to the realm of DCS in handling Analogs, Bus Systems, Distributed I/O etc. Also, since the DCS now handles logics of Digital I/O it also crossed the boundary to the realm of PLC.
As you know PLC as to its name Programmable Logic Controller. Its main purpose is to replace the relay logic controls which is "On" or "Off". And DCS "Distributed Control Systems" its emphasis is Fast analog handling because of communications through Bus systems, networking etc.
Summarising all these, PLC = DCS
| 13 years ago. Rating: 2 | |
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