Answer Posted / waqas
PLC is Programmable Logic Controller
DCS is Distributed Control System
PLC is just a monitoring/controlling device for a specific
application and it controls through its IO blocks.
DCS covers a wider aspect and it gathers information form
many PLCs and perform operations as per the Machine
Operator instructions.
Is This Answer Correct ? | 13 Yes | 8 No |
Post New Answer View All Answers
sir, i preparing hpcl,ongc,barc,hal exams(instrumentation engg)pls send a placement papers
We Have Two Field bus Pressure Transmitters of Different Sensor Range (I.E One is of Lower range and Another is of Higher Range).Is same Process Line. My Question is Can i provide Saturation Limit to my field Bus Transmitter as We can provide Saturation current limit to HART Instruments. As During Low Pressure Both Working OK ,But During High Pressure, transmitter with Lower sensor range Goes to Fault mode as Beyond its Sensor Limit it can Measure, So may I provide Saturation point Some where to Suppress This Fault during High Pressure.
What happen if we install my pressure transmitter below the elevation of pipe in natural gas service?
What is feed factor and its Importance in cement industry? How we can solve feed factor?.
What is instrumentation technologists and mechanics?
what is orfics working in main steam line. is it increase pressure, velocity of steam flow and dicrease steam flow rate. or any other
model question paper of instrumentation for Jindal GET 2010.plz reply sudhanshukumar08@yahoo.com
Can anybody tell me how to select the size of earthing cable for DCS & PLC system.Please tell me any relevant answer here or mail it to me.
how will you segregate the alarm levels in alarm management system during factory Acceptance Test
whatis range of marcury filled tempereture gague
why I need valve guard and whats different between guard and positioner ??
Explain about the leakage class of the control valves
How RAL(Rotary air lock)works in cement industry?
Explain Gas Turbine startup and shutdown sequences
Why rdt and thermocouple both give different output .and one things more, how to generate ohm or mili volt plz mail me merajalam143545@yahoo.com