Answer / srinita upadhyay

plc(programmable logic controller)is a microprocessor based
device which store data.

Answer / guest

plc is difinds as programmable logic controller

Answer / raja

Plc means program logical controll

Answer / eswaran p

PLC ( Programmable Logic Controller ),it is introduced as
replacement of relay logic circuit, by using PLC
complicated logic can be able to make . it is having
internal memory .

Answer / surendra gupta

plc means "programmable logic controller".
plc is a solid state computerised industrial controller
that performs discreate or sequential logic in factory
invironment. it was origenally doveloped to replace
mechanical relay, timer and counter.
plc is important to the
word of industrial automation.

Answer / mohan

PLC is a programmmable logic controller. which is an
automation to control the actuators and/or valves to done
the process.

Answer / guest

Programmer Logic Controller, which works hand in hand with SCADA

Answer / laxmi udasi

PLC is used to control the operation of machine
automaltically.

Answer / ibrahim s

PLC(Programable Logic Controller):

*It is used to emulates relay logic interlock and
provide device status.

*It works by looking at its input and depending upon
their state turning on or off its outputs.

*It control the devices according to user defined
logical
program.

Answer / t.pitchaikannu

PLC(Programmable Logic Controller)
----------------------------------
* It is a controller which is used to control machines ,
process,or total industry
* It is programmable ,depending upon application we can
change the program ,download and run the controller.
* They are so many logics are used to write a programme
1.Ladder Logic(LD)
2.Instruction List(IL)
3.Function Block Diagram(FBD)
4.Structure Text(ST)
5.Sequential Flow Chart(SLF)
* From this name itself it used to control the
applications by programming the logic.

Derive capacitance to 4-20ma conversion formula / relation in capacitance type pressure sensor?

0 Answers   ISRO,

I am applied 100 % pressure on to the air to open control valve,but the valve is not fully closed..and 10-15% is open the valve. how to calibrate the control valve?

3 Answers   OPaL,

How much voltage we get between two wire of 4 to 20 ma output? Is this voltage up or down respectvice to 4 - 20 ma ?

9 Answers  

how many type conductivity sensor ?

0 Answers   Process Automation,

What is the Temperature Co-officient of Resistance of PT- 1000 and PT-2000 ?

2 Answers   Adani, Birla, MEIL,

why pneumatic control signal output is use 0.2 to 1 kg/cm2

3 Answers   Jindal,

I have energy meter for educational project having 0.5s class but my friend need 0.2s class meter , which one is good for that purpose and what is the actual difference of that two classes , need very easy example also.??

0 Answers   BBS,

What is the diffrence between ff tx and non ff tx

0 Answers   Jindal, Rosemount,

Do you have reference list?

0 Answers  

what is difference between modbus & fieldbus

1 Answers   ABB,

what is the calibration standard for pressure and differential pressure transmitters?

1 Answers   Thermax,

explane hart protocol? what is its advantages.

3 Answers   Jindal,