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 charcterstics of a P&ID controller block for Governor speed raise or lower for a load sharing functionality between 4 Gas turbines in droop mode.

0 Answers   TNPL,

where the use of direct action control valve?

2 Answers  

if tx. dp increase or decrese what happend in the reading

1 Answers   BSP,

HOW TO DO PERFECT CALIBRATION OF DIFFERENTIAL PRESSURE TRANSMITTER FOR CLOSE VESSEL TANK LEVEL PURPOSE ???? AND HOW TO MAKE ZERO PRESSURE ?? Rosemount 2051 Pressure Transmitter with HART® Revision 5 and 7 Selectable Protocol BIENG USED !! HOW TO CALIBRATE FIELD SIDE DPT WITH THE HELP OF SPAN & ZERO PUSH BUTTONS ??

1 Answers   Bhel,

What is the procedure of DP switch calibration 

2 Answers   NOCL,

how to measure oxygen which methods are using?

0 Answers  

How to work & calculated output of the Derivative action in pid controller (Explain Derivative controller)

0 Answers  

What Is Pre- Commissioning Package +what is DCS & ESD Pre- Commissioning for Instruments Please explain your answer on practical ground base

0 Answers  

where proximity sensor installed on tank in loading arm application

0 Answers  

Please tell me details about Sox,Nox,SWAS analyser????

0 Answers   Essar,

how the 4 to 20 mA signal goes to any controller/indicator,and what is the role of voltage ,12/24 and how to do connection of it, in controller.

1 Answers  

What do you do as a Engineering person EPC for Sizing&Selecting Control Valve?

1 Answers