How to solve the problem that the controlled plant is no responding?

When using wireless touch screen of the central control system to control the equipment, the controlled plant is no responding. How can you solve it?

To solve the problem, you can follow the solutions below:

 1. When hitting the touch screen, inspect the receiver and indicator light of the central control to see whether it is flickering.

2. Check the serial cable connecting the wireless receiver and the central control port.

3. Check the instructions from the central control port and the code of the controlled equipment.

4. Check the pins of the  serial cable connecting the central control port to the controlled equipment.