Follow Our FB Page << CircleMedia.in >> for Daily Laughter. We Post Funny, Viral, Comedy Videos, Memes, Vines...


why the SCAN time of DCS is more & that of PLC is less?
if the SCAN time of DCS then why we use DCS.

Answers were Sorted based on User's Feedback



why the SCAN time of DCS is more & that of PLC is less? if the SCAN time of DCS then why we use..

Answer / bm

Scan time of DCS is more than the scan time of PLC when the
I/O's are digital.
Whereas the scan time of DCS is less than the scan time of
PLC when the I/O's are analog.
Hence DCS is better when analog signals are considered
whereas PLC is better when digital signals are considered.
However DCS do handle both analog and digital signals. It
can also have more no. of I/O's compared to PLC. Hence we
use DCS.

Is This Answer Correct ?    33 Yes 7 No

why the SCAN time of DCS is more & that of PLC is less? if the SCAN time of DCS then why we use..

Answer / kyle condran

DCS are not PC based. the configuration and operating software are but the actual control happens in a control module. DCS usually have a fixed scan time 50ms+, but not always, regardless of I/O count or program size.

PLC scan time depends on Program size and I/O used in the program.

Is This Answer Correct ?    5 Yes 0 No

why the SCAN time of DCS is more & that of PLC is less? if the SCAN time of DCS then why we use..

Answer / solomon

Eventhough PLC scan time is less,DCS is selected for its
I/O availability.About 1 lakh I/O available in DCS.

Is This Answer Correct ?    11 Yes 10 No

why the SCAN time of DCS is more & that of PLC is less? if the SCAN time of DCS then why we use..

Answer / k.k.rameshkumar

DCS is pc based system. The speed of the processor/CPU
decides the scan time.

Is This Answer Correct ?    3 Yes 28 No

Post New Answer



More Instrumentation Interview Questions

what r all the type of viberation measurement measuring in turbin? what's the output of viberation sensor?

2 Answers  


HOW DPT WORKS?

6 Answers   Essar,


What should be the stanchan Height for installation of Smoke detector & toxic gas detector in field,according to qatar standard

2 Answers  


HOW TO CALCULATE ACCURACY OF AN INSTRUMENT. WHICH IS COMPITABLE FOR USE.

0 Answers   ABB, NTPC,


Can anyone convert a 5/2 way or 3/2 way valve into an ISO valve?

0 Answers  






what is ZERO SUPPRESION and ZERO ELEVATION?

3 Answers   Reliance,


What is the GK Value in Flowmeter?

0 Answers   IBPIL, Thermax,


Explain the key components of control loop?

0 Answers  


Could anybody tell how much amps will a single input to plc will consume?

1 Answers  


why do we use 4-20mA as o/p and why don't use 0-20mA or 5- 21mA?

3 Answers  


Explain level troll principle & interface level measurement.

1 Answers   ADMA OPCO,


Can combine control system for Emergency control system (ESD)and Fire & Gas System ( F & G) is possble to built and offer to client? Can such system is as per Norms in India?

0 Answers  






Categories
  • Civil Engineering Interview Questions Civil Engineering (5076)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4445)
  • Electrical Engineering Interview Questions Electrical Engineering (16606)
  • Electronics Communications Interview Questions Electronics Communications (3915)
  • Chemical Engineering Interview Questions Chemical Engineering (1092)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (214)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (258)
  • Instrumentation Interview Questions Instrumentation (2992)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (123)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (0)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1378)