what is different between relay and plc?

Question Posted / sandeep

3 Answers
5639 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

what is different between relay and plc?..

Answer / midhun pius 09946626427

Basically relay is a electromagnetic device,we can't do any
changes in its mode of operation it is works only normally
open/normally closed conditions as per its default
manufacturing set up.
But a PLC is a Programmable Logic Controller. It has a
number of inputs and out puts, we can define its conditions
by using a computer program known as Ladder Logic program.
Any time we can easily change that conditions by the ladder
program1

Is This Answer Correct ?

13 Yes

1 No

what is different between relay and plc?..

Answer / roy.bijoy067

a relay use in conventional system and it working/operation
is fixed put plc is used in automation system and it
operation can be change according to our need.

Is This Answer Correct ?

2 Yes

0 No

what is different between relay and plc?..

Answer / rajesh

a relay is just a small part and is usually a part of plc
plc is a system which has number of i/o controls

plc is much large compared to a relay

Is This Answer Correct ?

1 Yes

3 No

Post New Answer

More Electrical Engineering Interview Questions

we hav seen in electric engine of trains only 1 wired slidng conecctn is there frm ovrhead line,howevr to complete a ckt in dc postv n negtv two conection has to b there...so where is tht negative is been connectd or where it is grounded...?

5 Answers ABB,

what is the difference between the characteristics of two different phase bushing of any transformer

0 Answers NIT,

HOW TO CALCULATE S/C,O/C,E/F OF ACB.

0 Answers

why exterrnal C.T. protection is used even though ACB& VCB is having inbuild C.T. protection?

2 Answers

which calss ct's,pt', use protection,meatering and others

1 Answers

how can we check a fully charged battery?

2 Answers KSEB,

What is the Efficiency in Electric motor ?

2 Answers

what will be the efficiency off x'mer during no load test and during short circuit test

1 Answers GPSC Gujarat Public Service Commission,

CAN CU XLPE/PVC CABLE BE USED INPLACE OF LOW NOISE SCREENED CABLE? KINDLY GIVE REASONS

0 Answers

what is the difference b/w KVA and KW? the transformer are mentioned KVA rating and the loads are mentioned KW.why?

2 Answers

how many Classification of fire extinguisher

0 Answers Juniper Networks,

solor panels arrange some angle,panel is flat fitted energy was produced or not why?

0 Answers

For more Electrical Engineering Interview Questions Click Here