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What is SCADA ? WHAT is it role in DCS ?
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The first difference between the two is that DCS is usually a process oriented in contrast to SCADA, which is data-gathering oriented. DCS scans and concentrates on the controlled process, be it, a chemical plant or any other and presents the information to the operators. SCADA, on the other hand, concentrates mainly on the control centre as well as the operators. The remote equipment is mainly used to collect data even though it can be used to carry out other multifaceted process controls.
A DCS operator station is usually linked to its I/O via the local wiring, networks and FiedBus. The operator makes a request directly to the field I/O whenever he wants to get information and gets a response for the same. This means that field events can directly disrupt the system and counsel the operator. On the other hand, whenever field communication fails, SCADA has to operate reasonably. Its main concern of a SCADA system operation is the quality of the data that is shown to the operator. In short, a DCS system is principally concerned with the process trends while a SCADA system is driven by the process events. for more information visit website : http://aptronnoida.in
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