ABB DCS (AC 800 M)redundency take howmany milliseconds to switch
from master controller to slave?should be less than DCS scanning time?
Answer Posted / anand.r biocon limited
less than 10 ms
Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
our kks tagging is crossing more than 12 character please suggest how to take tags in the DCS
give eg of how I/P is used in control loops
There are two chlorination tonners both are connected to two pressure swithes and the pressure switch is connected to SOV which operates the valve to changeover the tonner selection i.e if pressure one tonner goes low the other tonner should come in line if it is inautomatic selection design a circuit using relays ?
Tell about your IFFCO plant visit.
Positioner usage.
all types instrumentation questions want
How to Calibrate Vortex Flow transmitter in field
What are different types of orifice plates? State their uses.
principle of dead weight tester ?
what is sliding spool valves?
how radio frequency level probes works with its controller ? what is its principle ? pls give me brief explanation?
Question on maha cement
i have used level transmitter in starch cooking preparation tank. tank total height 2mtr.sometime LT display shows some error value when tank is fully empty and diaphragm side i already checked okay no problem in diaphragm area. field cable checked 24volt and mA shows correct value while tank empty mA is 4mA. 4mA i needed that 0% but display showing 10% or 15% percentage values are varying continously please give any good solution for me.....
What is force balance principle? State some of its’ advantages.
What inherent design and operating principles are included in a modern control system to use predictive maintenance practices to increase overall system reliability?