Best Budget PLC Software
Affordable PLC programming software that delivers excellent value for money.
Starting Points
These are editorial starting points, not measured winners. Run the same proof project, verify the exact product version and licence, and document which option fits your controller and team.
CODESYS
CODESYS GmbH (3S-Smart Software Solutions)
FREE basic version - perfect for learning
GX Works3
Mitsubishi Electric
User-friendly interface, easier learning curve
TwinCAT
Beckhoff Automation
FREE engineering software - only pay for runtime
Comparison Shortlist
Order reflects the current editorial shortlist. Numeric scores and unattributed adoption percentages are intentionally omitted.
| Software | Licence model | PLC families listed | Operating systems listed |
|---|---|---|---|
CODESYS CODESYS GmbH (3S-Smart Software Solutions) | freemium | 4 | Windows 7, Windows 8, Windows 10 |
GX Works3 Mitsubishi Electric | perpetual license | 5 | Windows 7, Windows 8.1, Windows 10 |
EcoStruxure Schneider Electric | perpetual license | 6 | Windows 10, Windows 11 |
TwinCAT Beckhoff Automation | runtime license | 4 | Windows 7, Windows 10, Windows 11 |
CX-Programmer Omron | perpetual license | 5 | Windows 7, Windows 8, Windows 10 |
RSLogix 500/5000 Rockwell Automation / Allen-Bradley (Legacy) | perpetual license | 5 | Windows XP, Windows 7, Windows 8 |
PLC Simulation Software plcsimulationsoftware.com | freemium | 3 | Any OS — runs in browser, Windows, macOS |
Sysmac Studio Omron | perpetual license | 3 | Windows 8.1, Windows 10, Windows 11 |
WPLSoft Delta | open source | 9 | Windows 7, Windows 8.1, Windows 10 |
Unity Pro Schneider Electric | perpetual license | 4 | Windows 7, Windows 8, Windows 10 |
Automation Studio B&R Industrial Automation (ABB Group) | perpetual license | 4 | Windows 7, Windows 10, Windows 11 |
PLCnext Phoenix Contact | freemium | 4 | Windows 10, Windows 11 |
Vijeo Designer Schneider Electric | perpetual license | 6 | Windows 10, Windows 11, Windows Server 2019 |
VTScada Trihedral (Delta Electronics) | perpetual license | 1 | Windows 10, Windows 11, Windows Server 2019 |
CODESYS Control Win CODESYS GmbH | freemium | 2 | Windows 10, Windows 11, Linux (separate Control Linux variant) |
CCW Micro800 Simulator Rockwell Automation | freemium | 5 | Windows 10, Windows 11 |
Factory I/O Real Games | perpetual license | 1 | Windows 10, Windows 11 |
OpenPLC OpenPLC Project (Open Source) | open source | 6 | Linux, Windows, Raspberry Pi OS |
RSLogix Emulate 500 Rockwell Automation | perpetual license | 6 | Windows 10, Windows 11 |
Ladder Logic Online Various educational publishers | freemium | 1 | Any OS — runs in browser |
LogixPro The Learning Pit | perpetual license | 1 | Windows XP, Windows 7, Windows 8 |
Detailed Reviews
CODESYS
CODESYS GmbH (3S-Smart Software Solutions)
Key Highlights
- ✓FREE basic version - perfect for learning
- ✓Supports wide range of hardware (500+ manufacturers)
- ✓Pure IEC 61131-3 standard compliance
Considerations
- !Less recognized brand than Siemens/Rockwell
- !Professional features require paid add-ons
Best For
GX Works3
Mitsubishi Electric
Key Highlights
- ✓User-friendly interface, easier learning curve
- ✓More affordable than competitors
- ✓Strong in Asia-Pacific market
Considerations
- !Less common in North America
- !Smaller community compared to Siemens/Rockwell
Best For
EcoStruxure
Schneider Electric
Key Highlights
- ✓Modern, user-friendly interface
- ✓Strong IoT and cloud integration
- ✓Good price-to-feature ratio
Considerations
- !Relatively new platform, less established
- !Smaller community than major competitors
Best For
TwinCAT
Beckhoff Automation
Key Highlights
- ✓FREE engineering software - only pay for runtime
- ✓Exceptional motion control capabilities
- ✓PC-based architecture provides high performance
Considerations
- !Steep learning curve
- !Requires strong PC/Windows knowledge
Best For
CX-Programmer
Omron
Key Highlights
- ✓Easy to learn and use
- ✓Affordable pricing
- ✓Good simulation capabilities
Considerations
- !Less common in North America than Siemens/Rockwell
- !Smaller community than major competitors
Best For
RSLogix 500/5000
Rockwell Automation / Allen-Bradley (Legacy)
Key Highlights
- ✓Massive installed base - many jobs still require it
- ✓Well-understood and documented
- ✓Stable, mature platform
Considerations
- !No longer actively developed (legacy software)
- !Being phased out in favor of Studio 5000
Best For
PLC Simulation Software
plcsimulationsoftware.com
Key Highlights
- ✓Zero install, zero cost, zero licence keys — fastest path to running ladder logic
- ✓Cross-platform: works on macOS, Linux, ChromeOS and tablets where most PLC software won't run
- ✓Browser-based saves and shares — perfect for classrooms and self-paced courses
Considerations
- !Browser-based environment — not a substitute for hands-on hardware programming
- !Cannot connect to physical PLCs or industrial networks
Best For
Sysmac Studio
Omron
Key Highlights
- ✓All-in-one machine automation solution
- ✓Excellent for integrated robotics
- ✓Strong motion control capabilities
Considerations
- !Limited to newer Omron NJ/NX hardware
- !Can't program older Omron PLCs
Best For
WPLSoft
Delta
Key Highlights
- ✓Free — no licensing cost ever
- ✓Lowest-cost path into PLC programming when paired with Delta DVP-ES2 hardware
- ✓Easy learning curve
Considerations
- !Older WPLSoft UI feels dated; limited visual polish
- !Documentation translation quality varies (English documentation is improving but still lags Chinese)
Best For
Unity Pro
Schneider Electric
Key Highlights
- ✓Large installed base in process industries
- ✓Reliable, proven platform
- ✓Good for oil and gas applications
Considerations
- !Being phased out for EcoStruxure
- !Legacy software with older interface
Best For
Automation Studio
B&R Industrial Automation (ABB Group)
Key Highlights
- ✓Excellent for high-speed packaging machinery
- ✓Strong motion control capabilities
- ✓Modern development environment
Considerations
- !Less common than Siemens/Rockwell (fewer jobs)
- !Smaller user community
Best For
PLCnext
Phoenix Contact
Key Highlights
- ✓FREE programming software
- ✓Open, modern architecture
- ✓Multiple programming language support
Considerations
- !Relatively new platform (limited adoption)
- !Small user community
Best For
Vijeo Designer
Schneider Electric
Key Highlights
- ✓Tight native integration with Schneider M-series PLCs
- ✓Multi-language support is best-in-class for industrial HMI
- ✓Java scripting more flexible than VB-script in many competitors
Considerations
- !Locked to Schneider hardware (not vendor-neutral)
- !UI feels dated compared to modern web-based HMI tools
Best For
VTScada
Trihedral (Delta Electronics)
Key Highlights
- ✓Exceptional fit for distributed utility-style assets (pump stations, substations, pipelines)
- ✓Built-in cellular store-and-forward — no third-party tools needed
- ✓Single licence — no surprise add-on costs
Considerations
- !Smaller community than AVEVA/Ignition — fewer integrators
- !Proprietary scripting language (VTScada)
Best For
CODESYS Control Win
CODESYS GmbH
Key Highlights
- ✓Free for development use — no time-bombed trial
- ✓Full IEC 61131-3 conformance
- ✓Active development with frequent releases
Considerations
- !Steeper learning curve than browser simulators
- !Production deployment requires paid licence
Best For
CCW Micro800 Simulator
Rockwell Automation
Key Highlights
- ✓Free — zero licence cost
- ✓Genuine Allen-Bradley emulation experience
- ✓Beginner-friendly compared to Studio 5000
Considerations
- !Limited to Micro800 family — not full Logix
- !Windows-only
Best For
Factory I/O
Real Games
Key Highlights
- ✓Genuinely realistic 3D plant scenarios
- ✓Pairs with any major PLC simulator
- ✓Strong educational adoption — recognised on CVs
Considerations
- !Windows-only
- !Requires a separate PLC simulator or real PLC
Best For
OpenPLC
OpenPLC Project (Open Source)
Key Highlights
- ✓Completely FREE - no costs ever
- ✓Open source - fully customizable
- ✓Runs on inexpensive hardware (Raspberry Pi)
Considerations
- !Not suitable for commercial/industrial use
- !No official support (community only)
Best For
RSLogix Emulate 500
Rockwell Automation
Key Highlights
- ✓Affordable Allen-Bradley emulation
- ✓Faithful SLC / MicroLogix behaviour
- ✓Trusted for legacy maintenance training
Considerations
- !Windows-only
- !Limited to legacy Allen-Bradley families
Best For
Ladder Logic Online
Various educational publishers
Key Highlights
- ✓Zero install
- ✓Cross-platform
- ✓Free for basics
Considerations
- !Lower fidelity than vendor simulators
- !No real PLC emulation
Best For
LogixPro
The Learning Pit
Key Highlights
- ✓Extremely affordable (~$50 for students)
- ✓Perfect for absolute beginners
- ✓No hardware needed to learn
Considerations
- !Simulation only - not for real PLCs
- !Limited to Allen-Bradley/RSLogix style ladder logic
Best For
Verification Method
The previous 0–100 scores mixed editorial inputs with unverified market estimates. They are no longer presented as objective rankings. Use these six checks instead:
Licence scope
Record edition, seat model, term, runtimes, add-ons, support and the date of the vendor quote.
Proof workflow
Create, compile, simulate, diagnose, archive and restore the same bounded project in every candidate.
Exact compatibility
Verify controller catalogue number, firmware, OS, languages, safety, motion and HMI support.
Installed-base fit
Use customer standards, local support and stocked spares instead of a generic market-share estimate.
Evidence trail
Keep links to manuals, release notes, lifecycle notices and dated test results.
Exit and limitations
Document export, migration, runtime, commissioning and hardware-test boundaries.
Treat every platform field on this page as a shortlist clue until the exact version is checked against a current primary source. See the testing methodology and submit discrepancies through the correction policy.
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