Question: Q2. A control process counts the number of rejected parts on a conveyor line by monitoring the number of times a solenoid valve SV1

Q2. A control process counts the number of rejected parts on a conveyor line by monitoring the number of times a solenoid valve SV1 goes from OFF to ON. If the number of rejected parts reaches 100, the motor M1 is turned OFF. The RESET pushbutton, when pressed, clears the counter accumulated value. The START and STOP pushbuttons serve the normal functions of starting and stopping the PLC control process/motor M1. The solenoid valve SV1 is activated at an inspection station once for every rejected part. Excessive rejection is an alarming condition that warrants shutdown of production until necessary corrections are carried out by the operator. Develop a PLC program to this process.

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