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.........

what are the standards used for earthing instruments in the field?

1 Answers  

I installed the smartplant instrument v8, but can not be opened, that always said: "INTools 2007 hardlock no found". So Could you help me how to do for that?

0 Answers   SRAAC,

how level can be measured in open tank with reference to pressure

1 Answers   Atul, INOX,

find the kp ki kd from the transper function G(S)=29.44s+04707/1.5349s2+s

0 Answers  

which one is best profibus or RS485 for communication?

2 Answers   Honeywell,

how to tune siemens sipart electro pneumatic positioner..plz tel me..

0 Answers  

why level transmitter input is given 4to20ma

2 Answers   Sabic,

what will be the principle & application of dissoled oxygen analyzer at wast water treatment plant at oxidation basin & how it work?

1 Answers  

How to adjust the zero & span of a control valve from the posiitioner(MIL)?

1 Answers   Bhel, SMC,

given a processor batch of 1000 resistors moving on the conveyor belting in a large factory. the resistors is value at 10k ohms each but when the resistors reach the quality control, some of the resistor has been rejected caused by failure in manufacturing.the high quality measurement is used to determine the failure. describe the instrumentation terminology in measurement of a system above with explaining the important in:- -reliability -sensitivity -repeatability -precision -range -resolution -linearity -hysteresis -error -accuracy (answer must related to the scenario above)

0 Answers  

State four different types of flow measurement.

4 Answers   ADMA OPCO,

what is the difference between impact plate n coriolis type solid flow meters n how they works....n which one is better

1 Answers