ABB DCS (AC 800 M)redundency take howmany milliseconds to switch from master c

ABB DCS (AC 800 M)redundency take howmany milliseconds to switch
from master controller to slave?should be less than DCS scanning time?

Question Posted / narasi23

2 Answers
6284 Views
SCS, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

ABB DCS (AC 800 M)redundency take howmany milliseconds to switch from master controller to slave?s..

Answer / muthu

taken over in less than 5ms

Is This Answer Correct ?

7 Yes

1 No

ABB DCS (AC 800 M)redundency take howmany milliseconds to switch from master controller to slave?s..

Answer / anand.r biocon limited

less than 10 ms

Is This Answer Correct ?

0 Yes

1 No

Post New Answer

More Instrumentation Interview Questions

send me model hpcl questions pleas..........my mail id mohideen.dharvesh@gmail.com

0 Answers HPCL,

WHAT DO YOU MEAN BY LOOP IN C.

2 Answers Wipro,

We do have a problem in the company that is one PT connected to PlC which is mean 1 out of 1 in PLC system we do have the PAHH is 55 mbar and PALL 8 mbar with a timer of 15 sec for the PAHH the problem started when PAHH goes more than the set point which is 55 it reached up to 71 but due to timer doesn't trip . We force it and we checked everything nothing there . We replaced the transmitter problem still there the reading goes more than the 55 bar the range for transmitte is 0- 60 mbar . So we did loop check , aculaizing valve , wiring all are okay . What the possible causes for this ???

2 Answers National Petrochemical Company,

What are advantages and disadvantage of the ac supply load cell?

0 Answers

What is pipe schedule? What are all effects its having in the valve? how do we take care of pipe sch in case if the customer dint specify in the data sheet. What we need assume and in what basis?

3 Answers

NAME ANY TWO ELASTIC PRESURE SENSOR?

2 Answers DVC,

What is compensation for flow ? Why we use compensation ? What are the factors of different compensation ? We not use then what problems may happen ?

0 Answers

we have LPG spherical Tank and we want to install DP Xmtr for level measurement.below are the physical measurements Total height of tank is 1850 mtr but 0% level is 1000mm above bottom and 100% level is 450 below upper side.What is the LRV and URV and please mention the formula .The SG of LPG is 0.53 and Wet Leg method will be used.

7 Answers

is here anybody who knows how to calibrate the pressure transmitter? ONLINE

5 Answers

What is cavitation. what is the effect of it on control valve and how is it prevented.

1 Answers ADMA OPCO,

What is the deffernce bet. Instrumentation and Electrical Enginerring?

1 Answers

what is cascade system ?

1 Answers RSP, Thermax,

For more Instrumentation Interview Questions Click Here