CurseForge · Minecraft mod
Redstone Logic Controller
Programmable automation: grafcet PLCs with a live editor, timers, counters, sensors, displays, wireless, and an API for other mods.
Quick answer
Which Redstone Logic Controller release should I use?
Redstone Logic Controller 1.2.1 targets 26.3 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Redstone Logic Controller required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Redstone Logic Controller 1.2.1 need?
Redstone Logic Controller 1.2.1. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Redstone Logic Controller without breaking your instance.
Built for Redstone Logic Controller 1.2.1. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Redstone Logic Controller 1.2.1. It targets 26.3 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside Redstone Logic Controller 1.2.1. It opens that exact file at the source.
About this project
What does Redstone Logic Controller add?
Redstone Logic Controller (RLC)
**Programmable automation for Minecraft.** RLC adds programmable controllers based on **grafcet** (sequential function charts), edited live in a graphical editor, and a full range of tech blocks around them.
Blocks
**Logic & timing:** timer (TON / TOF / TP), clock, logic gate (8 modes), counter (CTU / CTD / CTUD), numeric comparator.
**Memory:** memory, SET/RESET latch, analog memory, named variables shared across the world.
**Communication & outputs:** wireless relay channels, redstone output, sound output.
**Displays:** sign display, screen with text, 7-segment digits, gauges, coloured LEDs.
**Sensors & access control:** entity detector, inventory sensor, environment sensor (light, time, weather), laser passage sensor, fluid sensor, keypad, badge reader.
**Grafcet controller:** steps, transitions, actions, assignments and expressions; the first true branch wins.
**Supervision:** console listing every automaton, programming tablet, program key to copy and reuse programs.
Survival-ready
Every block has a crafting recipe.
Only the player who placed a block, and the players on its allowed list, can set it up.
Vanilla commands inside a grafcet run only if an operator in creative mode wrote them, like a command block. RLC's own actions (messages, titles, sounds...) are open to everyone.
For mod developers
A public API (com.rlc.api.RlcApi, separate api jar) lets other mods register their own events, actions, values and states, usable from RLC generators and grafcets. They can also seal RLC blocks inside their structures. **YARAM** uses it for its dungeon puzzles.
Install
NeoForge for Minecraft 26.3.
Install on the server and on every client. No dependencies.
In French and English. Full wiki in French: https://rlc.miraheze.org
Redstone Logic Controller (RLC) — en français
**L'automatisme programmable dans Minecraft.** Des automates **grafcet** avec éditeur graphique en direct, et toute une gamme de blocs autour d'eux :
tempos, horloges, portes logiques, compteurs, comparateurs ;
mémoires, bascules, variables ;
relais sans fil, sorties redstone et sonores ;
écrans, afficheurs 7 segments, jauges, voyants ;
capteurs (entités, inventaire, environnement, laser, fluide) ;
clavier à code, lecteur de badge ;
console de supervision, tablette et clé de programme.
Tous les blocs se fabriquent en survie, et chacun ne se règle que par son poseur et ses amis. Une API publique permet à d'autres mods (comme YARAM) d'ajouter leurs événements et actions.
Wiki complet : https://rlc.miraheze.org
Project description from CurseForge.
Pick your setup
Redstone Logic Controller by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Redstone Logic Controller versions and loaders
Redstone Logic Controller 1.2.1
rlc-1.2.1+26.3.jar
21 Oct 2026
Looking for an older file? The official CurseForge project page is in Resources.