Answer / teddy

PLC (Programable logic Controller) is a device used to
automatically control a process system. It consists of
several parts like a power supply (tipically 24Vdc), input
module (where we collect and receive all data from field
instrument devices), the processor (which analyzes the
parameters received and compares/makes decision based on
input and output), and the output module (which responds to
the process according to a predermined built in program).
All this control is done in one system called a PLC.

Answer / g.arjun

PLC is programmable logic control which is used for the automation of Electro Mechanical Process.

Answer / alok

PLC is an electronic device used to give or update output according to the input status and user defined program

What is mean by trim?

5 Answers  

---

Q- In the process of checking AC through Phase Tester our body is the part of circuit but we don't recevie Shock, Why ?

2 Answers  

---

what is exact time to study dcs and plc cources

0 Answers  

---

In 16' pipeline one pcv is installed which is controlled by PT installed at inlet of PCV.If Flowrate in pipeline increases what will happen to pressure at the inlet of pcv.

5 Answers   Essar, vssc,

---

Explain about relays.. Can we give both AC and DC to the same relay... How it is energising.. Explain its working..

7 Answers   IOCL,

---

WHAT IS A CALLIBRATION? WHAT IS MEEAN BY LOOP CHECKING INCLUDES PRESURE, THERMOCOUPLE,TT,DT?

5 Answers  

---

wat are the interview questions asked in air india for post service engineer

1 Answers   AirIndia, Shree Renuka Sugars,

---

Controller not working in auto mode?...what are the problem can occur...Pls explain

1 Answers   Aramco,

---

What is protocol ?

3 Answers  

---

What is 3 element control system

0 Answers  

---

how can we tune a PID. If it is by zeiger nichols method..please explain briefly with help of an example.

0 Answers   KNPC,

---

how is a displacer type level transmitter calibrated.explain the method?

2 Answers   Emirates,

---