Interested to Buy Any Domain ? << Click Here >> for more details...
defination of plc? why we use plc? application of plc?
advantage of plc?
- 4 Answers
- 21350 Views
- I also Faced
- E-Mail Answers
Answer Posted / eswar
PLC is a small computer used for automation of real world
process such as control of machinery on factory assembly
lines.where older automated systems would use hundreds or
thousands of relays,a single PLC can be programmed as a
replacement.
example maintaining of water level in a tank between two
float switches by opening or closing an electric valve.
In this example plc accepting two digital inputs from two
float switches.The plc controlling a single digital output
to actuate the inlet value valve into tank.
advantages:
1 flexibility:one single Plc can easily run many machines
2with plc we can do any changes in circuit design and we can
correct the errors.
3 pilot running
4 visible observation
5 space efficency: todays plc's have more memory therefore
we can generate more and more contacts timers,coils,counters.
| Is This Answer Correct ? | 46 Yes | 8 No |
Post New Answer View All Answers
What is the difference between working pressure and calibration pressure of a control valve
what are the definitions of input, output, command & signal according to instruments controlled by PLC using DCS System?
flow transmitter formula?
why use 50% lel methane gas concentration for gas detector calibration instead of 60% lel gas concentration whereas the hi alarm set at 60% lel.
I am using 971 Enraf radar level transmitter for LPG tanks ,the tank side indicator gives the error code 999999999FL can any body give me any diagnostic for this issue?
How to calibrate level transmitter with use of HART?
How to fix back the valve actuator stem
What are different type of instrument cable
If fire would be inside the plant which fire detector is to detected the fire.
What is the diffrence between ff tx and non ff tx
How to Calibrate Coriolis Flow transmitter in field
Do you have reference list?
how does we calibrate a square root flow transmitter ,give an example and explain it step by step like range calculation , calibration hook up series connection , zero check , and how to apply pressure , and if not geting proportional output then what should we do ?
What is difference of fanuc alpha series 16i and 18i controller.also what is differnce betn TC and MC controller
Give an example where you had aproblem on the job, and tell me how you solved the problem. and the finalvoutcome.
