From the course: Learning PLC Ladder Logic: 2 Diving Deeper

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Solution 3: Control section

Solution 3: Control section - Ladder Logic Tutorial

From the course: Learning PLC Ladder Logic: 2 Diving Deeper

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Solution 3: Control section

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- [Teacher] Let's take the second state which is state two. The current state is step two, the previous one is step one, and the next one is step three. Simple, right? Now, the conditions this time are different. The input is when the part sensor is on. Remember, the input conditions are above the arrow leading to that state. So simply placing them according to the bodologic format. And the same thing applies for step three and step four, we need to know what step we're currently in and then change the input conditions accordingly, and this is how the control section looks like for the four states we have. For step four, we don't need to use the hold in for that state, because if the counter is not done yet, it goes back to step one, so I simply removed the seal in part. Now for state zero, little bit different than the other states. We know that it's only on when everything is off so simply one rung where all steps are…

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