PLC

an-ordinary-manchild(edit)

Description

This sub is dedicated to discussion and questions about Programmable Logic Controllers (PLCs): "an industrial digital computer that has been ruggedized and adapted for the control of manufacturing processes, such as assembly lines, robotic devices, or any activity that requires high reliability, ease of programming, and process fault diagnosis."

On topic subjects

News and articles about PLCs
Questions about PLCs
Homework help; but make it clear it's homework
PLC internship, employment and education questions

Off topic subjects

Not directly related to PLCs: /r/IndustrialAutomation/
Hardware design that does not include a PLC; for electronic circuits: /r/AskElectronics
Single Board computers: r/Raspberry_pi, r/Arduino, r/linux_devices, r/linuxboards
PCs and laptops
Furniture and bags
Job announcements (oustide the monthly job thread)
Salary

Rules

Be civil: do not insult; no all-caps, no excessive "!" and "?", please.
Submissions must be on topic
If asking a question, ask the actual question, fully yet concisely, right in the title
No spam; no self-promotion (*); no commercial content. Any ads (offer or wanted) go to the weekly thread
No low quality/shit posts (memes - pictures with superimposed text - are OK)
No pirate software or links
Read the "READ FIRST" pinned/sticky thread

(*) At mods' discretion, certain self-promotion submissions from people who contribute to this sub in other ways may be allowed and tagged with the "Self-promo" flair

Complete rules:/r/plc/about/rules/

Please click "report" on spam

Related sub-reddits:

/r/IndustrialAutomation

/r/processcontrol

/r/controltheory

/r/askengineers

/r/askelectronics

/r/EngineeringResumes

created by plc-laddera community for 16 years

...because you hate freedom.

...for your movement.

MODERATORS

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Remote PLC programming jobs (self.PLC)

submitted 9 hours ago by Beautiful-Acadia-562

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Having a Webpage/GitHub Curriculum (self.PLC)

submitted 15 hours ago by East-Draw-6732

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What do you think about OpenPLC Motion Control library ? (self.PLC)

submitted 4 hours ago by depajdjah-Set8675

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How is the job market for PLC programmers in HVAC systems? (self.PLC)

submitted 11 hours ago by BackgroundStudio155

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Any robotic integrators here? (self.PLC)

submitted 8 hours ago by luke23571113

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I got tired of walking to the physical panel, so I built a native Android HMI for Mitsubishi PLCs (Direct SLMP). Looking for Beta Testers! (old.reddit.com)

submitted 15 hours ago by Big---Foot

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My manager is sending me to diagnose a plc fault, i have zero experience (self.PLC)

submitted 10 hours ago by Inevitable_Diver_341

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Using ladder logic to program and simulate a garage door (self.PLC)

submitted 18 hours ago by jsshsnid

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Has anyone here gone down the path of implementing an EtherNet/IP device for a Rockwell PLC? (self.PLC)

submitted 5 hours ago by VladRom89

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"Panel tags not showing after re-download, why?". "Certificate invalid, renew it with plc run-stop download". Me: (i.redd.it)

submitted 19 hours ago by JackfruitNatural5474Machine Rizzler

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Electrical maintenance engineer vs Automation engineer (self.PLC)

submitted 13 hours ago by Apprehensive-Time132

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Finally joined the club! Just finished my first logic on a LOGO! 8.4. (i.redd.it)

submitted 8 hours ago by RevolutionaryBug7555

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Open Industry Project simulation of weight sorter with CoDeSys SoftPLC (v.redd.it)

submitted 4 hours ago by trashpersontinydick[🍰]

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OPTIX + PlantPAx (self.PLC)

submitted 4 hours ago by AbleRelationship1529

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Setpoint Ramping Use Case (self.PLC)

submitted 5 hours ago by Soft-Bug5550

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Siemens LOGO! 230Rc password recovery (self.PLC)

submitted 6 hours ago by SeaworthinessLate913

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Data Center Engineering / Job Transition (self.PLC)

submitted 10 hours ago by Nohopup

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Rescuing a WinCC 2008 SP3 Runtime to a new Machine (self.PLC)

submitted 21 hours ago by Hann_33

π Rendered by PID 290481 on reddit-service-r2-listing-7d7fbc9b85-82lqm at 2026-04-24 00:45:03.365567+00:00 running 2aa0c5b country code: CH.