UnifCAD documentation
How to draw, program and simulate an industrial control system in UnifCAD.
UnifCAD is a browser-based simulator for industrial control. You draw the electrical schematic, write the program each device runs, model the plant in 3D, and then run all three together as one live system.
Start here
Getting started
What UnifCAD is, where your projects live, and the layout of the screen.
Drawing the schematic
Placing components, wiring them up, terminals, and wire colours.
Simulation
Running the circuit, reading a live sheet, and what each protection alarm means.
Wiring and connections
Wiring: click, click, done
The two ways to draw a wire, how to place 90° corners, how to cancel, and how to reshape a run after it is drawn.
Why a connection is refused
The three messages UnifCAD shows when it rejects a wire, and what each one means.
Open the app while you read
Everything here is easier with the editor next to it. Open UnifCAD and follow along on a scratch project — nothing in this documentation asks you to modify work you care about.