r/PLC is a subreddit with 143k members. The most common kinds of discussions are advice requests and solution requests, and the community frequently discusses looking for, plc, looking, help, and looking to, 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
: "Looking for Job portals in Canada.."
7 posts
#2
Solution Requests
: "Looking for a PVC like cover for HMI screens"
2 posts
#3
Self-Promotion
: "I built a browser-based PLC/automation simulator (Structured Text, realistic wiring, IoT) — looking for honest feedback from people who actually work with PLCs"
1 post
Popular Topics in r/PLC
#1
Looking For
83 posts
#2
Plc
34 posts
#3
Looking
16 posts
#4
Help
14 posts
#5
Looking To
14 posts
#6
Control
14 posts
#7
Hardware
6 posts
#8
Software
3 posts
#9
Training
3 posts
#10
Modbus
2 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
: "Software"
1 post
Member Growth in r/PLC
Yearly
+26k members(21.8%)
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About
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Last updated: September 30, 2026