Could someone please explain the operational principal of the following ladder logic?
As I have studied quite a long time, but it seemed to me that the solution is incorrect.
Problem:
A motor will be connected to a PLC and controlled by two switches. The GO switch will start
the motor, and the STOP switch will stop it. If the motor is going, and the GO switch is thrown,
this will also stop the motor. If the STOP switch was used to stop the motor, the GO switch
must be thrown twice to start the motor. When the motor is running, a light should be turned on
(a small lamp will be provided).
