engineering recuitment UPPSC AE Mock Test 2024 Mechatronics and Robotics Programmable Logic Controller
Consider the following statements.
1. In PLCs, the rules are executed sequentially through software and in a continuous loop.
2. Each relay rack is represented by a symbol on the ladder diagram.
3. PLC is a modular system.
Which of the following statements regarding PLCs are correct?
1
1 and 2 only
2
2 and 3 only
3
1 and 3 only
4
1,2 and 3