Online PLC and Controls Forums
control.com - integrator and controls forum that started with an open source project.
MrPLC forum - PLC specific forum
Automation Web - Created by a user when Rockwell forums went down. Let’s help get this one started.
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Looks like Automation Web died.
plcs.net- Forum plus an online simulator
EZAutomation- Low-cost PLC/HMI/etc. Really good for small standalone projects.
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ControlsOverload - Q&A style forum
Useful Reddit subs:
PLC(Programmable Logic Controllers)
ECE(Electrical and Computer Engineering)
AskElectronics(General Electronics Questions)
eebooks(Free and Legal ECE Text Books)
ECE Component exchange(ECE Parts Swap)
Manufacturing(Manufacturing Industry News)
engineering(General Engineering)
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Other online PLC Forum resources are given below:
If you are interested to know about PLC course and its advantage then go through here: PLC SCADA Training in Noida |Industrial Automation Training in Noida | CETPA INFOTECH
Online PLC and DCS Controls Forums,
PLC related
PLC SCADA Forum
Thank you for sharing valuable information… But some resources don’t open 
Some posts are 15 years old. Not all of them survive. Welcome to the interwebz.
I have used LogixPro for about 5 years to teach introductory PLC programming exercises at a local university. The software's UX is laughable, but I've always been successful using it to teach the fundamentals, and haven't found a better alternative (for the price). Inexpensive automation/PLC resources are hard to find, and I would recommend this to anyone looking for a starting point to learn PLC programming.
I always recommend that people complete the first 4 exercises using only OTE instructions and stay away from OTL/OTU. Then after they have mastered the fundamentals, go back and solve them with latched and unlatched instructions.
LogixPro Allen Bradley simulator
Student documentation and reference material here
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Surpised PLCTalk hasnt been listed.
Some pretty knowledgeable people there including some ex Rockwell engineers.
Sure it was, like the 3rd post.
Terrible looking forum but decent information.
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Ah....i only know it by PLC Talk...never paid attention to the .net URL. Oh well, it bares repeating as most of the others have died. Even MrPLC went offline for awhile recently, although they seem to be back, but traffic has really died there.
I used to participate at PLCTalk until, a few years ago, a moderator made a poll of a very political question. Then attacked the few, including me, who didn't adopt the politically correct position. Politics can be discussed politely in public, but only if all interlocutors, particularly those with authority, are inclined to do so. I later learned that the entire long topic had been deep-sixed, but the moderator in question remained. Sad.
MrPLC is still having some technical difficulties, fwiw.
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Politics and religion in any forum is no bueno. I avoid them if at all possible. I run hot and cold with PLCtalk. Ill participate heavily when im on travel, bored in the hotel room, but then I'll forget about the forum, and go years without a single post. I dont get attached, so i guess I avoid all the drama.
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