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Any of you guys PLC programmers?

Posted on 4/24/20 at 1:10 pm
Posted by HogBalls
Member since Nov 2014
9350 posts
Posted on 4/24/20 at 1:10 pm
Can you recommend any books, videos, etc for a rookie wanting to understand ladder logic, symbol meanings, PLC troubleshooting in the field?
Posted by East Coast Band
Member since Nov 2010
67017 posts
Posted on 4/24/20 at 1:13 pm to
Seriously, watch some YouTube videos.
Mind you, there are a couple of different PLC (Allen Bradley or Siemens, etc) and while they are similar in logic ( inputs satisfied, turns on outputs,etc) they are vastly different in nomenclature and bit handling
Posted by HogBalls
Member since Nov 2014
9350 posts
Posted on 4/24/20 at 1:17 pm to
Gotcha. Mostly working with Allen Bradley RsLogix
Posted by Tbonepatron
Member since Aug 2013
8462 posts
Posted on 4/24/20 at 1:17 pm to
Yeah, what ECB said. It would help to know which particular system.
Posted by Tri City Tigers
Member since Oct 2018
2343 posts
Posted on 4/24/20 at 1:20 pm to
I've got a 15 year old textbook at home you can have.
Posted by el Gaucho
He/They
Member since Dec 2010
60200 posts
Posted on 4/24/20 at 1:22 pm to
No, most of us side with PLF
Posted by SulphursFinest
Lafayette
Member since Jan 2015
11931 posts
Posted on 4/24/20 at 1:22 pm to
We use Allen Bradley at work. I learned in school, though.

Instrument tech is the career if you’re wondering. Can make a good living knowing how to write programs. I can’t write them yet, but can troubleshoot using them.
Posted by uaslick
Tuscaloosa
Member since May 2011
1327 posts
Posted on 4/24/20 at 1:40 pm to
My experience with PLC programmers is that to be really good at it, you must be crazy as hell. If not, you will just be average.
Posted by eitek1
Member since Jun 2011
2910 posts
Posted on 4/24/20 at 2:03 pm to
Just buy a little cheap PLC and play with it at home. That’s the best way to learn. All logic is the same basically, understanding the programming “philosophy” you are going to program or troubleshoot is critical.

Practice writing programs managing streetlights and things. You’ll figure it out.

Also EITEK1 = Electronics and Instrumentation Technician #1

Yes folks, I’m the best. Hahaha
This post was edited on 4/24/20 at 2:08 pm
Posted by NATidefan
Two hours North of Birmingham
Member since Dec 2008
36788 posts
Posted on 4/24/20 at 3:21 pm to
Velocio.net sells some really cheap PLCs and their software is free.

Would be good for practice.
Posted by Frenchdip
Member since Jun 2019
128 posts
Posted on 4/24/20 at 3:42 pm to
Did some PLC programming to put myself through medical school. Basic advice would be to learn generic ladder logic and logic gate functions. Allen Bradley control logix is by far the best PLC manufacturer’s software in my opinion, but I wouldn’t even concern myself with real life PLCs until you know some basic generic stuff about logic in general. Hate to be negative but more than likely your not smart enough to do this.
This post was edited on 4/24/20 at 3:44 pm
Posted by HogBalls
Member since Nov 2014
9350 posts
Posted on 4/24/20 at 3:52 pm to
quote:

your not smart enough

lulz
Posted by diat150
Louisiana
Member since Jun 2005
48188 posts
Posted on 4/24/20 at 3:55 pm to
Thats one of my many talents. Id recommend getting on youtube and udemy. There are tons of resources out there now that werent out there when I first started. Also, more than likely you will be using allen bradley since they have most of the NA market so find some manuals and read thru them.

Also, if you want cheap, check out automation direct. You can get a click plc with free software for like 79.

you can download Ignition by inductive automation and run on 2 hour trial for free to learn hmi/scada..

plctalk.net is a great forum. its tigerdroppings for plc's.

another thing, you can do all of these courses and learn a little bit, but nothing is a replacement for seeing a bunch of different methods and other programmers work in the field. a concept that you may think would work after reading a book, would not be the best way of doing it. Ive had some of my workers talk about the way they were taught to do things in school... and it was hilarious. Like I told them, there is a reason those guys are teaching at a trade school vs making six figure salaries implementing multi million dollar processes.
This post was edited on 4/24/20 at 4:02 pm
Posted by BananaHammock
Member since Aug 2011
13150 posts
Posted on 4/24/20 at 4:02 pm to
quote:

you can download Ignition by inductive automation and run on 2 hour trial for free to learn hmi/scada

Ignition is the best thing to happen to the automation industry in the last 20 years. Outstanding product. Do the InductiveUniversity courses they offer if you have time. That and object-oriented PLC programming with RSLogix 5000 and the ControlLogix and CompactLogix platforms from Allen-Bradley.
Posted by diat150
Louisiana
Member since Jun 2005
48188 posts
Posted on 4/24/20 at 4:07 pm to
yeah i have been using the software since it first became Ignition from factorypmi and factorysql. great product and super stable. I have done some really big projects in it and I honestly love working in it because if you know sql and python, you can really do some awesome stuff in the software.

with that said, plc programming as we know it will be going away in the next 10-15 years IMHO. Its gonna move to more of a drag and drop type environment where anyone with sense can program. I think learning sql, and programming languages like python, c, java, etc will be just as important down the road. Also knowing communications, networking and security, and understanding how to build straightforward user experiences is what will separate true automation professionals from the rest of the pack down the road.

There are already programs that you can buy that will write the code for you for logix500 and siemens. That type of stuff will get cheaper and more common and do away with the need to pay a programmer 6-8 weeks to write a program. Check this out LINK

Also, the best PLC Programmer on this forum is by far mdomingue. Ive had the pleasure of working with him in the past and he is the best in the area!
This post was edited on 4/24/20 at 4:15 pm
Posted by slacker00
Member since Mar 2011
593 posts
Posted on 4/24/20 at 4:20 pm to
I don't know, I've been forced to do some stuff in labview (drag and drop style) and that stuff infuriates me to no end. I'd rather write code.
Posted by diat150
Louisiana
Member since Jun 2005
48188 posts
Posted on 4/24/20 at 4:44 pm to
Check out the wonderlogix video I linked.
Posted by TheHarahanian
Actually not Harahan as of 6/2023
Member since May 2017
24373 posts
Posted on 4/24/20 at 5:01 pm to

I believe Archimedes wrote the foundational series on PLC programming.
Posted by PearlJam
NotBeardEaves
Member since Aug 2014
13908 posts
Posted on 4/24/20 at 5:06 pm to
quote:

Did some PLC programming to put myself through medical school. Basic advice would be to learn generic ladder logic and logic gate functions. Allen Bradley control logix is by far the best PLC manufacturer’s software in my opinion, but I wouldn’t even concern myself with real life PLCs until you know some basic generic stuff about logic in general. Hate to be negative but more than likely your not smart enough to do this.
Can't believe this is getting so many downvotes. Quintessential ot post.
Posted by TigerRagAndrew
Check my style out
Member since Aug 2004
7262 posts
Posted on 4/24/20 at 5:39 pm to
Triconex/Tristation 1131 skills are highly in demand
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