From the course: PLC Sequencer Logic
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Car wash process - Ladder Logic Tutorial
From the course: PLC Sequencer Logic
Car wash process
- [Instructor] Now for our final challenge. We want to develop a program to implement an automatic car wash process, and save the data for analysis. The process is to the event-driven by the vehicle, that activates various limit switches, Limit Switch 1 to Limit Switch 6 along the tunnel for the car wash steps. Let's go through the steps together, starting by the vehicle is connected to the conveyor chain both inside the car wash bay. Limit Switch 1 turns on the water input valve, Limit Switch 2 turns on the soap release valve, which mixes with the water input valve to provide a wash spray. Limit Switch 3 shuts off the soap valve and the water input valve remains on to rinse the vehicle. Limit Switch 4 shuts off the water input valve and activates a hot wax valve. Limit Switch 5 shuts off the hot wax valve and starts the air blower motor. A flashing light is on indicating the process is almost done. Finally, Limit…
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