Learn How To Program And Troubleshoot Ladder Logic by Curtis Green

Author:Curtis Green [Green, Curtis]
Language: eng
Format: epub, pdf
Publisher: C.H. Green
Published: 2015-02-03T23:00:00+00:00

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I think this is a good time to point out that thus far we have created useful logic circuits using just five instructions. The XIC, XIO, OTL, OTU and TON instructions. Most programs use only a handful of instructions and nearly all programs will use these five.

There are specialty instructions for everything including controlling motion, crunching numbers, communications, string manipulations, the list goes on. Master the fundamentals first. Learn and understand the basic instructions, learn how they work and how placement determines the behavior or outcome of the logic, then you can begin utilizing multiple instructions.

Back to our conveyor logic, which is nearly complete. There is just one more condition left to add to stop the conveyor motor. The last condition states that the conveyor motor will turn on as long as there is NOT a Backup condition.

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