Interested to Buy Any Domain ? << Click Here >> for more details...
what is the diffrence between plc&dcs
- 4 Answers
- 9782 Views
- HCL, Hindustan Zinc, I also Faced
- E-Mail Answers
Answer Posted / h v k kumar
simply plc is a controller we can control analog and digital
i/o s but i/0 limit is there in plcs.dcs is nothing but
networking of plcs.EX
plc1+plc2+smart instruments+mc baesd instruments all are
controlled by dcs at a time .ic has redundancy also
| Is This Answer Correct ? | 10 Yes | 1 No |
Post New Answer View All Answers
selection of the zener barrier for the hazardeous area zone 0
What is force balance principle?
how to turbine speed measurement?
Which type of diagphram use in costic line,DM water line,natural gas line,oil line?
Explain about the leakage class of the control valves
what is maxdna ?. explain about the software details.
how to control pid
In Safe Guarding test what means by "Failed to Danger" ?
What is 3 element control system
what is actual drum level and compensated drum level?
use of split range ? where it is used ? in which control loop it is used ?
What pressure results for a flow transmitter of range 0- 180t/h in the dcs and 0-301mbar in the field using square root extraction. Kindly also suggest formulae for the percentages 0,25,50,75,100?
Full form of KKS when use DCS.
Draw block digram for well head from well to shipping pump?
A PLC is programmed to drive three motors A, B and C as follows : After running motor A for an hour, motor B should get ON and motor A should get OFF. And after running motor B for an hour, motor C should get ON and motor B should get OFF. And after running motor C for an hour, motor A should get ON and motor C should get OFF. (That is, a cyclic repetition with time period one hour) Now, the second condition is: If any motor gone faulty and is tripped, the consecutive motor should get ON and the faulty (tripped) motor should be eliminated from cyclic repetition. The remaining two motors should bear the cyclic repetition of one hour each. (For healthy motor take logic as high and for tripped motor take logic as low) Now, the third condition is: When motor A load(Amps) exceeds 60% of its rated load, motor B should get ON in parallel to motor A. And when both motors A & B are running in parallel, and if their load exceeds 60% of their rated load, motor C should also start in parallel to A & B. [Here the cyclic repetition is eliminated, until their loads become normal(40%)] [Take logic high(1) for load at 60% and logic low(0) for load at 40%] Now draw a flow chart or a ladder diagram to fulfill the above condition.
