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Old 04-05-2016, 07:17 PM   #1
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Default PLC Ladder Logic for Newbies!

Hey guys, I'm excited to finish this blog post on PLC Ladder Logic! If you're new to PLCs, you need to be familiar with Ladder Logic.

Ladder Logic cannot be fully explained in one blog post, but this is a great place to start. And if you're ready for more after you read post, I've got a freebie for you to use as you learn Ladder Logic programming. Check it all out here: http://www.myplctraining.com/beginne...-ladder-logic/
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Old 04-05-2016, 08:19 PM   #2
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Very nice thanks for sharing!
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Old 04-05-2016, 08:22 PM   #3
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Very nice thanks for sharing!
Thanks you!
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Old 04-06-2016, 12:57 AM   #4
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That was very nice of you, and behalf of everyone here thanks. But...... as a old fart, I would like to add that ladder logic was important and around a whole lot longer than plc's have been. We just did things different using relays , and pot timer's, and limit switches instead of proximity sensors.....
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Old 04-06-2016, 08:08 AM   #5
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Originally Posted by macmikeman View Post
That was very nice of you, and behalf of everyone here thanks. But...... as a old fart, I would like to add that ladder logic was important and around a whole lot longer than plc's have been. We just did things different using relays , and pot timer's, and limit switches instead of proximity sensors.....
I agree with you but the thing is PLC ladder logic is the same but different than hardwired relay logic. It's mainly a mental thing but here's and example: one of the hardest things hardwired people have in transitioning to PLC logic iwhen to programming for a normally closed switch or PB. A stop PB would be programmed as a NO contact in a standard 3-wire start/stop circuit.
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Old 04-06-2016, 08:19 AM   #6
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Originally Posted by macmikeman View Post
That was very nice of you, and behalf of everyone here thanks. But...... as a old fart, I would like to add that ladder logic was important and around a whole lot longer than plc's have been. We just did things different using relays , and pot timer's, and limit switches instead of proximity sensors.....
I agree with you but the thing is PLC ladder logic is the same but different than hardwired relay logic. It's mainly a mental thing but here's and example: one of the hardest things hardwired people have in transitioning to PLC logic iwhen to programming for a normally closed switch or PB. A stop PB would be programmed as a NO contact in a standard 3-wire start/stop circuit.

Thanks for your comments, guys. Yes Ladder Logic has some small differences in the hard wired world. And it can be confusing when you have to use a N.C. Input in the PLC logic because you often have to negate it (change it to N.O. XIC), but the more you program the more those details start to become straightforward! Let me know if there's anything I can do to help you guys with PLC training. Thanks again!
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