Table of Contents:
- PLCs can be programmed easily which can be understood clearly well.
- They are fabricated to survive vibrations, noise, humidity, and temperature.
- The controller has the input and output for interfacing.
- It is a tedious job when replacing or bringing any changes to it.
- Skilful work force is required to find its errors.
- Lot of effort is put to connect the wires.
- The hold up time is usually indefinite when any problem arises.