r/PLC is a subreddit with 137k members. The most common kinds of discussions are advice requests and solution requests, and the community frequently discusses plc, looking for, struggling, automation, and control, and they frequently recommend/review hmi, plc, and software tools.
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."
Popular Themes in r/PLC
#1
Advice Requests
: "Feeling deflated for my future in the PLC world. Looking for some perspective."
18 posts
#2
Solution Requests
: "Do you guys have alternative suggestions for custom "mobile HMI" solutions?"
7 posts
#3
Pain & Anger
: "easter eggs…"
4 posts
#4
Ideas
: "If you rebuilt your machine today, what would you choose differently?"
1 post
Popular Topics in r/PLC
#1
Plc
: "Have Plc programmers become accidental network engineers?"
89 posts
#2
Looking For
87 posts
#3
Struggling
43 posts
#4
Automation
: "4 Weeks as Automation Engineer - Advice on PLC Programmring?"
28 posts
#5
Control
: "I have 10 no of Sinamics V20 VFD in a Control panel where Modbus is used for frq source. Setting parameter for all VFD manually really drains the energy."
24 posts
#6
Struggling With
18 posts
#7
Struggling To
18 posts
#8
Looking
17 posts
#9
Help
15 posts
#10
Looking To
15 posts
Products Discussed in r/PLC
Hmi
371 reviews
#1
Weintek
4.1★ from 30 reviews
#2
Red Lion
4.1★ from 27 reviews
#3
Inductive Automation
4.4★ from 25 reviews
Plc
348 reviews
#1
Siemens
4.2★ from 51 reviews
#2
Automation Direct
4.2★ from 30 reviews
#3
Beckhoff
4.7★ from 29 reviews
Software Tools
30 reviews
#1
Filezilla
4.0★ from 2 reviews
#2
SmartGit
4.0★ from 1 review
#3
ChatGPT
4.0★ from 1 review
Flair Used in r/PLC
#1
Off topic
: "My office today near Valdez Alaska"
3 posts
Member Growth in r/PLC
Yearly
+26k members(23.4%)
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About
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Last updated: July 15, 2026