Answer / p.mohamed_hannan

plc: AB,ABB,Siemens,GE-Fanuc,Omron/LG,Keyence
dcs: ABB

Answer / m p joshi

PLC - Programmable logic controller. Processing of data is done centrally at CPU and accordingly information flow or control is exercised.

DCS - Distributed Control System. Data are processed at different levels but the entire information flow is routed through CPU.

Answer / pukhraj meghwasnhi

DCS consist many PLC or other control device. Means PLC is
sub part of DCS.

Answer / uttam pawar

plc is mainly used for on-off control
dcs is used for distributed cotrol or continuous control

Answer / swapnil talele

PLC- it is a sequential control system.
where as
DCS- it is a closed loop control system.

Answer / raj

less weight,storage high

Answer / sunil parmar

PLC-- PROGRAMMABLE LOGIC CONTROLLER
DCS--DIGITAL CONTROL SYSTEM

BOTH ARE USED IN field AUTOMATION BUT MAINLY DIFFER IN THEIR APPLICATION.........

If we increase only P what will be controller action ?

0 Answers   IMECO,

During valve sizing from all calculation you got flow coefficient CV 12,than what it means? like for selecting pressure transmitter if your MAWP is 12 bar than you select a capsule of max. 20 bar which cover your mawp 12 in same way for selecting control valve If CV is 12 than how we use it in selecting valve??????

1 Answers  

what is the difference between magnetic flow meter and mass flowmeter

0 Answers  

line up procedure for dp type flow transmitter?

0 Answers  

WHAT IS THE DIFF. BETWEEN SKIN TEMPERATURE AND PASSES TEMPERATURE..?

0 Answers  

If any control valve create hunting problem, what is the possible reason and solution?

6 Answers  

how to calculate the temp. of RTD&Thermocouple when we got some mV r Ohms?if anybody has d chart pls mail the chatrs to me...

1 Answers  

Why is it necessary to use compensation leg to measure the liquid level in a closed or pressurized tank?

0 Answers  

1. what is 3 point calibration & 5 point calibration? 2. If we use hart communicator to set the LRV & URV of a smart transmitter, did we calibrate the transmitter? why? 3. Make a complet list if meterials needed to properly connect a pressure gauge to a steam pipe using 1/2 inch stainless steel tubing. The gauge connections is 1/2 inch NPT-M and the steam pipe tap has a 1/2 inch female coupling, compression fittings are use. 4. What are the tools in loop checking? 5. What would the ISA symbol of a square root extractor look like? 6. What would you do to completely prepare for the configuration? 7. What safety measures must you undertake when doing configuration? 8. what are the two most commonly use programming languages used when we configure a PLC? 9. What would you do if you accidentally skipped a step in the configuration procedure? 10. How would you know if the configuration were sucessful? 11. Name at least 3 selections available when we configure the burnout protection of a controller?

3 Answers   EI Electrotechnical Institute,

diff between neutral ,ground,phase , earthing and shielding?

0 Answers   L&T,

Punj lloyd is coming in our Jadavpur Universtiy campus for campus placement. Please send me some hints about the writtend exam. My email id is subratafriends@gmail.com

0 Answers   IGL, Punj Lloyd Ltd, Shapoorji Pallonji Group(SPCL),

what is hart communicater? can u give brief explanation about this issue?

3 Answers