WHAT IS THE DIFFERENCE BETWEEN PLC AND DCS
Answer Posted / gyani
PlC has to read all its data itself and to generate o/p
accordingly,if the system is big the scan cycle goes high
and any changes in i/p could scan & dispaly little late.DCS
have many sub processor who update their data and give
summery to DCS,so DCS have to scan only these sub cpu hence
it improves the scan cycle and system becomes faster.Now PLC
has also coming with big data handling capacity with low
scan cycle.
Is This Answer Correct ? | 16 Yes | 7 No |
Post New Answer View All Answers
what does the ratio 800-400-300-200/1-1-1-1-1 in the specification of current transformer indicates?
Draw a wheatstone bridge circuit showing supply, meter and 3 wire RTD connection
what is the difference between active & reactive power?
how pressurize drum calibrated ?
Instrumentation Safe Guarding test. How to determine the interval time of the test. eg:Halfyearly,Every year,Every three years etc.
Q- What are the application in which PNP transistor is preferred over NPN ?
How oil line flow measured?eplain about instruments used and working principle?
it is possible to check the fail safe condition in pressure transmitter. if possible how?
What is solenoid valve? Where it is used?
Explain the difference between plc and cnc?
why orfice is not used for main steam flow calculation
Specific gravity.
pls provide me syllabus and old question paper of instrumentation engineering for GET(JSPL)
What is the diffrence between digital signal processing and discrete signal processing?
what is sliding spool valves?