What is SCADA ? WHAT is it role in DCS ?
Answers were Sorted based on User's Feedback
SCADA= supervisory control and data acquisition is a system operating with coded signals over communication channels so as to provide control of remote equipment through PLC & other controller.
DCS= distributed control system is a system which used in process industries to control process parameter and it's doesn't need separate HMI system
DCS= HMI+controller+other PLC over communication protocol
Is This Answer Correct ? | 11 Yes | 0 No |
Answer / it training center in noida (a
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
Is This Answer Correct ? | 0 Yes | 0 No |
i install a DP transmitter of Faugi on drum level of boiler but i face a problem in it when i engergize the transmitter the meter shows 0 or 100% no variation in it.the distance of two points is 19.5 inches, i am in trouble please suggest me what can i do it's very urgent Please reply me as soon as possible Best regards ikraam haider
Why we are using 4-20 mA as Analog signal transmission other than 3 to 19 or 2 to 18 or 6 to 22 like wise ? What is the reason behind using 4 & 20 mA? Can anyone give proper technical reply ?
How to measure density of oil in your kitchen. i.e indirectly to verify the quality of oil using min. gadgets available in the kitchen/house.
Q- Why Phase tester is only used for checking AC not DC ?
If the on Of the DO module is off in the System cabinet, then what is the Procedure to check weather the Module is working or not.
explain how magnetic flowmeter works
what is the principle of vibration
What is the meaning of the term "g force"?
3 Answers Reliance, Saint Gobain, Thermax,
what is purpose of three way manifold valve using for dp transmitter
flow transmeter accuracy 0.075% of full scale & find ucertainty is 0.025 % so what is maximum limit band of uncertainty
what is shutoff dp? why is it important for selection of a control valve?
What is the meaning of Dry contact and Wet Contact related to to sensors?