CODESYS vs PLCnext

Comprehensive comparison of two leading PLC programming platforms

CODESYS GmbH (3S-Smart Software Solutions)Phoenix ContactUpdated 2025

CODESYS

CODESYS GmbH (3S-Smart Software Solutions)

85
Overall Score
Price:$
Learning:beginner-intermediate
Adoption:70%

FREE basic version - perfect for learning

PLCnext

Phoenix Contact

64
Overall Score
Price:$
Learning:intermediate-advanced
Adoption:25%

FREE programming software

Overall Winner

CODESYS leads with an overall score of 85/100

CODESYS is the stronger overall choice with better pricing. However, PLCnext may be preferable if you prioritize pricing or if you're already committed to the Phoenix Contact ecosystem.

Score Breakdown

CategoryCODESYSPLCnext
Overall
85
64
Pricing
100
100
Ease of Use
70
40
Features
86
69
Industry Adoption
83
38
Community Support
100
94
Career Value
77
58

💰Pricing Comparison

Both CODESYS and PLCnext are in the same price range ($). CODESYS pricing ranges from $0 to $2,000, while PLCnext ranges from $0 to $2,000.

📚Learning Curve

CODESYS (rated 5/10) is easier to learn than PLCnext (rated 7/10). CODESYS typically takes 2-4 months to learn, while PLCnext requires 4-8 months. This makes CODESYS better for beginners.

⚙️Features & Capabilities

CODESYS offers 11 key features including safety programming, motion control, robotics integration. PLCnext provides 11 key features with motion control. Both platforms offer a comprehensive feature set for industrial automation.

🏭Industry Adoption

CODESYS has 70% market adoption compared to PLCnext's 25%. CODESYS dominates in Europe, Asia-Pacific, North America, while PLCnext is strongest in Europe, North America, Asia-Pacific. CODESYS's higher adoption means more job opportunities and community resources.

🔌Hardware Compatibility

CODESYS is designed specifically for Over 500 manufacturers including Schneider Electric, Wago, Eaton, ifm, Festo, Bosch Rexroth hardware, while PLCnext works with Phoenix Contact PLCs. Both are vendor-specific solutions optimized for their respective hardware ecosystems.

💼Career Prospects

CODESYS offers stronger career prospects with 70% market adoption and official certification programs. PLCnext has 25% adoption and is also backed by certifications. For maximum employability, CODESYS expertise is more in-demand.

CODESYS Overview

Key Strengths

  • FREE basic version - perfect for learning
  • Supports wide range of hardware (500+ manufacturers)
  • Pure IEC 61131-3 standard compliance
  • Excellent for education and training

Limitations

  • Less recognized brand than Siemens/Rockwell
  • Professional features require paid add-ons
  • Fewer job postings specifically for CODESYS

Best For

Learning PLC programming and IEC 61131-3Students and hobbyists (free version)OEM machine builders

PLCnext Overview

Key Strengths

  • FREE programming software
  • Open, modern architecture
  • Multiple programming language support
  • IoT and Industry 4.0 ready

Limitations

  • Relatively new platform (limited adoption)
  • Small user community
  • Fewer job postings

Best For

Industry 4.0 and IoT applicationsModern automation with cloud connectivityProjects requiring multiple programming paradigms

Recommendations

For Beginners

CODESYS

For Professionals

CODESYS

Budget-Constrained

Both are suitable

Enterprise Use

CODESYS

Frequently Asked Questions

Which is better: CODESYS or PLCnext?

CODESYS is the stronger overall choice with better pricing. However, PLCnext may be preferable if you prioritize pricing or if you're already committed to the Phoenix Contact ecosystem.

What is the price difference between CODESYS and PLCnext?

Both CODESYS and PLCnext are in the same price range ($). CODESYS pricing ranges from $0 to $2,000, while PLCnext ranges from $0 to $2,000.

Which is easier to learn: CODESYS or PLCnext?

CODESYS (rated 5/10) is easier to learn than PLCnext (rated 7/10). CODESYS typically takes 2-4 months to learn, while PLCnext requires 4-8 months. This makes CODESYS better for beginners.

Which has better career prospects?

CODESYS offers stronger career prospects with 70% market adoption and official certification programs. PLCnext has 25% adoption and is also backed by certifications. For maximum employability, CODESYS expertise is more in-demand.

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