Can someone help me on where to find the information to tack

Can someone help me on where to find the information to tackle this question. Thanks. PLCs have found numerous applications in industrial and other uses. While they have advantages over electromechanical relays, they also have limitations. Discuss the advantages and limitations of PLCs over electromechanical relays.

Solution

The advantages are

1.Ability to interface / communicate with computers

2.Simple programming

3.High reliability

4.Easy maintenance

5.Rugged construction - can operate in extremely harsh conditions

6.Small size

7.Easy expandability

8.Economical in long term

Disadvantages.

-Cost of PLC is high

-PLC\'S are designed by semiconductors, which are depends on thermal characteristics