Role

PLC Programmer

Programs industrial controllers to run machines safely and consistently on factory floors.

12 chaptersAbout 3–5 months15–30 min a day12 skills1 projects
Start this path free →

Chapter 1 is free. No card needed.

Day 1 on the PLC Programmer path.

What a PLC Programmer does

Programs and tests industrial controllers so machines run safely, reliably, and the same way every cycle in factories and plants.

  • Design control logic for machines using PLC programming
  • Build and test HMI screens for operators and maintenance teams
  • Integrate sensors, motors, valves, and safety devices into control systems
  • Diagnose faults on running equipment and restore production safely
  • Commission new machines on-site and tune timing and sequences
  • Document wiring, I/O lists, alarms, and change history for audits
  • Coordinate with electricians, mechanics, and engineers during installs

A day in the life

  1. Review a machine issue log, then troubleshoot on the factory floor
  2. Update PLC logic, simulate changes, and test with a safe checklist
  3. Meet with maintenance and production to plan downtime and changes
  4. Commission equipment, verify safety circuits, and train operators briefly

Tools you will use

PLC software: Studio 5000, TIA Portal, GX WorksHMI software: FactoryTalk View, WinCC, IgnitionIndustrial networks: Ethernet IP, PROFINET, ModbusTest equipment: multimeter, clamp meterDiagrams: electrical schematics, P and IDVersion control: GitSimulation: PLC simulator, digital twin basics

Your plan

Chapter by chapter.

1~1 wk

See PLC programmer work up close

StartFree
21–2 wks

Circuit design & simulation

Skills
31–2 wks

Digital & control logic

Skills
41–2 wks

PLC conveyor sequence with HMI, alarms, and emergency stop

Proof
51–2 wks

Testing & build readiness

Skills
61–2 wks

Thinking & adaptability

Skills
7~1 wk

Meet working PLC programmers

People
81–2 wks

Collaboration & communication

Skills
91–2 wks

Code & version management

Skills
101–2 wks

Choose your PLC programmer route

Decide
111–2 wks

Prepare for PLC programmer interviews

Interview
12on your timeline

Apply for PLC programmer roles

Apply

By the last chapter

This is what you can show.

Things you've made

PLC conveyor sequence with HMI, alarms, and emergency stop

Skills you can prove

12 skills, each rated on work you actually did.

People you've talked to

3 people who do the job, with a message ready for each.

Questions you can answer

18 interview questions and a mock interview, with feedback.

Credentials

2 credentials compared, so you can pick one, or decide you don't need one. None is required.

Ways in

There is more than one route.

Ways to study

  • Technical diploma in industrial automation or mechatronics
  • Degree in electrical engineering or control engineering
  • Apprenticeship in industrial electrical or automation maintenance
  • Vendor training courses in PLC and HMI programming

How people get their first job

  • Start as automation technician or maintenance technician and learn PLC basics
  • Apply for factory automation internships or co-op placements
  • Earn a PLC or industrial networking certificate from a recognized vendor
  • Build a small demo with a micro PLC and document it as a portfolio
  • Shadow commissioning work and practice writing test checklists

Life skills on this path: Networking · Job interviews · Job search

How the work is changing

What AI is doing to this role

How AI is changing this role · one of 6 tasks we track

Build HMI screens for operators

Sped up a lot

What AI does

Tools generate screen layouts and tag bindings in WinCC and FactoryTalk.

Still yours

You decide what operators actually need to see and act on.

Reviewed September 2026

In the app · Premium

The rest is in the app

  • How AI affects the other 5 tasks
  • Whether this job is growing or shrinking
  • How hard the first job is to get
  • Similar roles that are easier to get into
  • Updated every month, with sources
See it in the app →

How we rate a job →

Already working

Already a PLC Programmer?

Plan your move to Senior PLC Programmer: 7 chapters that end with a strong case for your next review.

Grow in the role →

Other roles in Electrical & Electronics Engineering

AI Silicon and Accelerator Design EngineerAnalog Design EngineerBattery Cell Engineer with Materials BackgroundBattery EngineerBattery Storage and Grid Integration EngineerComputer Hardware EngineerControl Systems EngineerDigital Design EngineerElectrical Design EngineerElectrical EngineerElectromagnetic Compatibility EngineerElectronics EngineerElectronics Test EngineerEmbedded Systems EngineerFPGA EngineerHardware EngineerInstrumentation EngineerMechatronics EngineerOptical EngineerPCB Design EngineerPhotonics EngineerPower Electronics EngineerPower Systems EngineerRF EngineerRobotics EngineerSemiconductor Process Engineer

Questions

Questions about this path

How long does it take to become a plc programmer with Welica?

The path is 12 chapters, 3–5 months at 15 to 30 minutes a day. You can go faster or slower; the plan moves with you.

Do I need a degree?

Not always. Common routes are technical diploma in industrial automation or mechatronics, degree in electrical engineering or control engineering, apprenticeship in industrial electrical or automation maintenance, or vendor training courses in PLC and HMI programming.

What is free?

Chapter 1, See PLC programmer work up close, is free for good. Premium unlocks the rest of the path.

Start the PLC Programmer path.

Chapter 1 free. About 15 to 30 minutes a day.

Start this path free →

Already have an account? Sign in

Also on iPhone and Android