Browser tool guide
How to set up LADX Mini for free (no install)
A ladder logic simulator that runs in your browser. It is the main practice tool in the PLC internship.
Last checked 18 Oct 2026.
What it is for
Time
Works on
Official page
Cost and terms
Part of your EDWartens internship. No separate cost and no download.
Checked on the official site on 18 Oct 2026.
What you need
- A computer, tablet or phone with a current browser (Chrome, Edge, Firefox or Safari)
- An internet connection
- Nothing to download
Open it
1.Sign in to your EDWartens account, then open My Day and choose Practice, or go to edwartens.com/student/ladx.
You should see: The LADX Mini page opens with a ladder editor and a simulated machine.
2.Pick the first exercise in the list.
You should see: A blank rung and a short instruction appear.
3.Drag a contact and a coil onto the rung and press Run.
You should see: The coil lights up when its contact is on.
1.Sign in to your EDWartens account, then open My Day and choose Practice, or go to edwartens.com/student/ladx.
You should see: The LADX Mini page opens with a ladder editor and a simulated machine.
2.Pick the first exercise in the list.
You should see: A blank rung and a short instruction appear.
3.Drag a contact and a coil onto the rung and press Run.
You should see: The coil lights up when its contact is on.
1.Sign in to your EDWartens account, then open My Day and choose Practice, or go to edwartens.com/student/ladx.
You should see: The LADX Mini page opens with a ladder editor and a simulated machine.
2.Pick the first exercise in the list.
You should see: A blank rung and a short instruction appear.
3.Drag a contact and a coil onto the rung and press Run.
You should see: The coil lights up when its contact is on.
Check that it works
1.Place one contact and one coil on a rung and press Run.
You should see: Switching the contact on lights the coil. Switching it off turns the coil off.
2.Press Stop.
You should see: The simulation stops and the editor stays open.
If something goes wrong
- The page asks me to sign in.
- Sign in to your EDWartens account first. LADX Mini is part of the student portal.
- The editor is blank or does not load.
- Reload the page. If it still fails, try another current browser and turn off extensions that block scripts.
- Run does nothing.
- Check that every rung has a coil and that the rung is complete from left to right, then press Run again.
- It is hard to drag on my phone.
- Turn the phone sideways, or use a tablet or computer for the ladder editor.
Leaving it
- There is nothing to remove. Close the tab when you are done.
Which internships use it
- PLC Programming internship, in weeks 2, 3, 4, 5, 6, 7 and 8.
- Instrumentation and Process Control internship, in week 6.
- SCADA and HMI internship, in weeks 2, 4, 6 and 8.
The first 4 weeks of every internship are free. This is training, not employment, and there is no stipend. All software guides.