From the course: PLC Sequencer Logic

Example dishwasher sequence - Ladder Logic Tutorial

From the course: PLC Sequencer Logic

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Example dishwasher sequence

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- [Narrator] Let's use a sequencer output instruction to control a more advanced operation. A dishwasher cycle that has the following timed steps in its operation. The design of the dishwasher cycle sequence involves soap, filling water, wash, drain and dry. Start and stop push buttons are used to enable and disable the dishwasher operation. And each step takes 30 seconds within the dishwasher cycle process. The 30 second is used to demo only. In real design, you need to keep a more reasonable number between the steps. 30 seconds obviously isn't going to wash anything. The sequence goes this way, step one is to fill in water, wash and then drain, then dispense the soap, for step two. For step three, fill, wash, drain doing this again. Step four, fill, wash, drain, another round. Finally, the last step, step five, is dry.

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