Skip to content
BETAThe lab is free and in beta. Found something wrong?

Level 2 of 23 · PLC lab

Wire the PLC inputs

Level 2 of 23 in the PLC lab: a free PLC exercise at Foundation level, which takes about 40 minutes. Connect the input common 1M, a START button, a STOP button, a selector, a three-wire PNP proximity sensor and a limit switch. Watch each input light, and see what a missing common or a swapped sensor does.

40 minFoundationNot started

Goal

Connect the input common 1M, a START button, a STOP button, a selector, a three-wire PNP proximity sensor and a limit switch.

Done when

The acceptance test marks the skills this level practises.

Skills

Wiring at Foundation level.

Before you start

Level 1, Power the PLC, comes first. Do it first if the ideas are new to you.

Free, in your browser, nothing to install. Your work is saved on this device. Updated 1 Nov 2026.

23 levels

Levels in the PLC lab

Program a working machine in ladder, Structured Text or SFC and watch it run.

Wire the PLC

Levels 1 to 4
  1. Start Power the PLC
  2. Start Wire the PLC inputs
  3. Start Wire the PLC outputs
  4. Start Program and prove it

Foundation

Levels 5 to 9
  1. Start Motor start/stop with overload
  2. Start Forward/reverse conveyor
  3. Start Star-delta fan starter
  4. Start Batch counter on a packing line
  5. Start Tank filling pump

Intermediate

Levels 10 to 23
  1. Start Pedestrian crossing
  2. Start Parcel sorter
  3. Start Duty and standby pumps
  4. Start Scale the tank level
  5. Start Conveyor jam detection
  6. Start Reusable motor block: four motors
  7. Start Filling sequence
  8. Start Packaging line drive
  9. Start Safety gate interlock
  10. Start Air handling unit temperature control
  11. Start Palletiser sequence
  12. Start Batch mixer with recipes
  13. Start Bottling line: fill, cap, reject
  14. Start Fault-finding challenge

All 23 PLC programming exercises on one page: what each one teaches and how the marking works.

Part of the PLC lab

Program a working machine in ladder, Structured Text or SFC and watch it run.

Feeds these internships (training, not employment): PLC Programming.

About the PLC lab

Ready for Wire the PLC inputs?

Free, in your browser, with nothing to install.