How to Become a PLC Programmer in India, 90-Day Practical Roadmap
Can You Really Become a PLC Programmer in 90 Days?
Yes, if you commit 25-30 focused hours per week, you can become job-ready as a junior PLC programmer in 90 days. The roadmap below is built from observing 10,000+ trainees at Wartens Automation Pvt Ltd over a decade. It accounts for the actual learning curve, not the idealised version sold in 4-week marketing brochures.
This roadmap assumes you start with basic electrical knowledge (diploma, ITI, or any engineering background) and zero PLC exposure. It does not assume you have a CS degree, most successful PLC programmers in India come from EEE, ECE, EIE, Mechanical, Instrumentation, or Diploma backgrounds.
The 90-Day Roadmap at a Glance
- Days 1-15: Foundations, electrical refresher, what PLCs really do, picking your first brand
- Days 16-30: First PLC program, ladder logic, timers, counters, on Siemens TIA Portal
- Days 31-45: Second brand and SCADA basics, Allen Bradley Studio 5000, WinCC dashboards
- Days 46-60: Real industry project, design and commission a working control system
- Days 61-75: Third brand + industrial networking + functional safety basics
- Days 76-90: Portfolio polish, CV, interview prep, job applications
Let's break each phase down.
Days 1-15, Foundations
### Week 1: Get the mental model right
- What is a PLC? Why is it different from an Arduino or Raspberry Pi?
- How does industrial control flow? Sensor → Input card → CPU → Logic → Output card → Actuator
- What is ladder logic and why is it the dominant programming language?
- The 5 IEC 61131-3 languages: Ladder (LD), Function Block Diagram (FBD), Structured Text (ST), Instruction List (IL), Sequential Function Chart (SFC)
- Industrial communication basics: digital I/O, analog 4-20mA signals, Modbus
Daily commitment: 3-4 hours.
Resources: AutomationDirect.com free courseware, PLC Academy YouTube, books like "PLC Programming Methods and Applications" by John Hackworth.
### Week 2: Pick your first brand and install software
- Recommended first brand: Siemens S7-1200 with TIA Portal V18. Largest job pool, best documentation.
- Download TIA Portal V18 trial (21-day free trial)
- Set up PLCSIM Advanced for simulation (no hardware needed yet)
- Complete Siemens Industry Mall free training modules
Daily commitment: 4 hours.
Outcome by end of Week 2: You can navigate TIA Portal, create a new project, and write a basic NO-NC ladder rung.
Days 16-30, Your First PLC Program
### Week 3: Master ladder logic fundamentals
- Normally Open / Normally Closed contacts
- Output coils and SET/RESET instructions
- Timers (TON, TOF, TP, retentive timers)
- Counters (CTU, CTD, CTUD)
- Latching and unlatching logic
- Comparison and math instructions
Daily project: Build a traffic light controller (4-way with pedestrian crossing).
### Week 4: Build progressively complex projects
- Bottle filling station (with conveyor, photoelectric sensor, pneumatic valve)
- Lift / elevator controller (3 floors, call buttons, floor sensors)
- Tank level control (start/stop pumps based on level sensors with hysteresis)
- Motor sequencing (5 motors starting in sequence with interlocks)
Daily commitment: 4-5 hours, including 2 hours of hands-on programming.
Outcome by end of Week 4: You have 4 working PLC programs in your portfolio and you can explain timing logic clearly.
Days 31-45, Second Brand and SCADA
### Week 5: Add Allen Bradley Studio 5000
- Why a second brand matters: 5x more job openings
- Studio 5000 Logix Designer install (Rockwell offers 7-day trial)
- Tag-based programming vs Siemens address-based
- Rebuild Week 4 projects in Studio 5000, compare and contrast
### Week 6: SCADA basics with WinCC
- What SCADA does: real-time monitoring, alarms, trends, historian
- Build a WinCC Comfort Panel runtime for one of your PLC programs
- Add tags, faceplates, alarm management, navigation between screens
- Trend logging and basic recipe management
Outcome by end of Week 6: You have a working PLC + SCADA combo demonstration project.
Days 46-60, Real Industry Project
This is where DIY learners typically stall. Theoretical knowledge isn't enough, recruiters look for real, deployed industrial work.
### Week 7-8: Pick a real-world project
Ideally, work on a project that:
- Mimics a genuine industrial process (water treatment plant simulation, pharma batch reactor, packaging line)
- Uses real sensors and actuators (even small hobby versions help)
- Includes SCADA visualisation
- Includes safety logic (E-stops, safety relays)
- Has documented test cases
This is the phase where structured programs win decisively over self-study. At EDWartens, trainees in this phase work on actual Wartens Automation Pvt Ltd client projects, water treatment automation for a Karnataka municipality, pharma line at a Bangalore plant, food packaging at a Mysore facility. That portfolio is what gets shortlisted at MNCs.
If you are self-studying, simulate using Factory I/O, it costs €99 but gives you ready-made factory environments to program against.
Outcome by Day 60: One substantial, documented, demonstrable project.
Days 61-75, Third Brand + Networking + Safety
### Week 9: Third PLC brand
Pick based on your target sector:
- Automotive sector target: Mitsubishi FX-series + GX Works3
- Process / Pharma target: Schneider Modicon M340 + EcoStruxure Control Expert
- MSME / cost-sensitive target: Delta DVP-SE + ISPSoft
### Week 10: Industrial networking fundamentals
- Profinet vs Profibus (Siemens world)
- EtherNet/IP (Allen Bradley world)
- Modbus RTU and Modbus TCP
- OPC UA (the unifying modern standard)
- Build a multi-PLC project communicating over Profinet
### Week 11: Functional safety basics
- What is IEC 61508 / IEC 61511
- Safety PLCs: Siemens S7-1500F, Allen Bradley GuardLogix basics
- Safety relays and circuits, E-stop, light curtains, two-hand controls
- This is a major resume differentiator
Days 76-90, Portfolio, CV, Applications
### Week 12: Polish your portfolio
- Create a GitHub repository with your 5-6 PLC projects
- Add ladder logic screenshots, SCADA HMI screens, wiring diagrams, project descriptions
- Record a 5-minute video walkthrough of your best project (Loom or YouTube unlisted)
### Week 12-13: CV and LinkedIn
CV must include:
- Explicit list of PLC brands with version numbers (e.g. "Siemens S7-1200, TIA Portal V18")
- SCADA platforms with versions
- Industrial networking protocols
- Functional safety awareness
- Your portfolio link prominently displayed
- Specific project outcomes ("Reduced commissioning time by 30%", "Implemented OEE tracking", etc.)
Upload to: Naukri.com, LinkedIn, Indeed, Internshala. Reach out directly via LinkedIn to talent acquisition managers at your target companies (the Top 25 hiring companies list is a good starting point).
### Week 13: Interview prep
Common technical questions you must be able to answer:
- Difference between PLC and microcontroller
- Scan cycle of a PLC
- Difference between latching and momentary logic
- How retentive timers differ from non-retentive
- Difference between PLC and DCS
- Modbus RTU vs Modbus TCP
- Safety integrity levels (SIL 1 vs SIL 3)
- Why one would pick Profinet over EtherNet/IP
Behavioural questions: tell me about a project, biggest debugging challenge, how do you handle a deadline crunch, etc.
Outcome by Day 90: At least 5 interview invites, at minimum 1 offer letter.
Common Mistakes That Derail Self-Study
- Spending too long on theory before hands-on practice, Get to ladder logic by Week 2 maximum.
- Sticking to only one PLC brand, One-brand engineers face 80% job rejection.
- Skipping SCADA entirely, Modern PLC programmer roles almost always include SCADA expectations.
- No real project in portfolio, Theoretical knowledge alone gets filtered out.
- Trying to learn from English-only resources without Hindi/Tamil/Kannada equivalents, If language is a barrier, LearnVern's Hindi course can supplement.
- Ignoring functional safety, Even basic awareness adds ₹1-2 LPA to your offer.
- Not building a LinkedIn presence during the 90 days, Share weekly progress; recruiters will start reaching out by Week 8.
- Underestimating the lab/hardware factor, Pure simulation experience often falls flat in technical interviews when you can't explain real-world wiring.
Self-Study vs Structured Program, When to Choose Which
Self-study suits you if: you have very strong self-discipline, can dedicate 30+ hours/week, have access to hardware (or are willing to spend €99 on Factory I/O), are comfortable with English documentation, and have a 6-month financial runway.
A structured program (like EDWartens AEP) suits you if: you want a faster, more predictable outcome; you want a written job guarantee; you don't want to spend ₹50k+ on software/hardware experiments; you want real industrial project experience on your CV; you want CPD UK accredited credentials; you want placement at MNCs from day one.
What "90 Days" Actually Buys You
- A working knowledge of 3 PLC brands
- 1 SCADA platform fluency
- 5-6 portfolio projects
- Ability to read industrial drawings and SOPs
- Confidence in interviews
It does NOT make you a senior automation engineer. That takes 3-5 years of on-the-job experience. But 90 focused days does get you from zero to a first PLC programmer job at ₹3-5 LPA, and from there, the next 2-3 years can take you to ₹8-12 LPA if you actively learn and build a project portfolio.
FAQs
Q: Is 90 days really enough to become a PLC programmer?
A: Yes, for entry-level junior PLC programmer roles at ₹3-5 LPA, provided you maintain 25-30 hours/week of focused learning and complete real projects. Senior roles obviously take years of experience.
Q: Can I become a PLC programmer without an engineering degree?
A: Yes, ITI, diploma, and BSc graduates regularly become PLC programmers in India. What matters is hands-on competence and project portfolio, not degree class.
Q: Which PLC brand should I learn first?
A: Siemens S7-1200 with TIA Portal V18. Largest job pool, best documentation, transferable skills to other brands.
Q: Do I need to buy a PLC to learn?
A: Not initially. Use TIA Portal PLCSIM and Studio 5000 Emulate. By Week 6, getting access to real hardware (through a training institute, employer, or shared hacker space) becomes important.
Q: How much can I earn after 90 days of training?
A: ₹3-5 LPA for general PLC programmer roles in Bangalore. Higher (₹5-7 LPA) if you complete a placement-guaranteed program at a reputed institute.
Q: Is the EDWartens AEP a 90-day program?
A: No, AEP is a 6-12 month Junior Engineer Program because we believe in deep, multi-brand, real-project experience. 90-day fast tracks have their place, but the AEP is designed for candidates targeting MNC placements with ₹5+ LPA offers and a written 100% money-back guarantee. See AEP details.
Start Your 90-Day Roadmap Today
Need help structuring your 90 days? Book a free aptitude session at EDWartens Electronic City Bangalore, we will assess your starting point, recommend whether self-study or the AEP suits you better, and give you a personalised week-by-week plan.
