Generate Live
Text spec + Excel I/O list to compile-clean LGF-style PLC project. Function blocks, instance DBs, OB1 wiring — done in 5 minutes.
- Native
.zap21archive - PascalCase block names
- 4-tier validation
TIA Portal V21 work, compressed to minutes.
PLCBrain runs TIA Portal in the cloud with Claude as the engineer. Generate projects from text. Audit existing ones for code quality and OT-security gaps. Diagnose why a line stopped — without the round-trip to site.
Three pillars
One platform for the entire PLC workflow.
Built on the same private MCP server that drives Openness from natural language. Bread-and-butter automation work, fully cloud-native.
Audit Beta
Upload an existing .ap21, get back a HTML/PDF report on code quality, OT-security, naming hygiene, and IEC-61131 compliance.
- 40+ static rules
- Per-block scoring
- TUV-friendly format
Diagnostics Soon
Why did the line stop? Snapshot a live PLC, get Claude's ranked diagnosis in plain language. Phantom-stop hunter for production floors.
- Per-incident, per-machine, or per-plant tiers
- Operator-friendly verdict
- Multi-vendor on the roadmap
How Generate works
From plain-text brief to a real TIA project.
1. Describe
Free-form text: "Packing line PACK-01, 4 conveyors with start/stop and jam detection". Plus an Excel I/O list (Tag, Address, DataType, Comment).
2. Submit
Job lands in our queue. The orchestrator spins up TIA, copies a clean seed, hands the prompt to Claude.
3. Generate
Claude drives our MCP tool whitelist: tia_create_fb, tia_create_db, tia_create_instance_db, plus an OB1 rewrite to wire everything.
4. Verify & ship
tia_compile_plc for sanity, native Archive() to .zap21, then back to your browser. Open in your local V21, ship.
// FB_Conveyor — LGF-style scaffold
// generated by PLCBrain on 2026-05-26
VAR_INPUT
start_btn : Bool;
stop_btn : Bool;
phc_a : Bool;
phc_b : Bool;
estop_ok : Bool;
END_VAR
VAR_OUTPUT
motor_cmd : Bool;
jam_alm : Bool;
END_VAR
VAR
running : Bool;
END_VAR
// edge-triggered run latch
IF start_btn AND estop_ok AND NOT stop_btn THEN
running := TRUE;
END_IF;
IF stop_btn OR NOT estop_ok THEN
running := FALSE;
END_IF;
jam_alm := phc_a AND phc_b;
motor_cmd := running AND NOT jam_alm;Built for
System integrators who ship bread-and-butter automation.
Cuts the boring 80%
Block scaffolding, instance DBs, OB wiring, tag tables — the part that takes 4-8h per project becomes 5 minutes. You stay focused on the interesting logic.
Predictable output
PascalCase blocks. snake_case tags. LGF-style structure. Compile-clean before download. No diacritics. Same shape every time.
Real artefacts
Native .zap21 archive from Openness Archive(). Opens in your local TIA Portal V21 like any other project. No cloud lock-in.
5 SK/CZ system integrators wanted for closed beta.
Free during beta. Real feedback in exchange. No commitments. We're sending invites this week.
Request beta access