CODESYS vs RSLogix 500/5000

Comprehensive comparison of two leading PLC programming platforms

CODESYS GmbH (3S-Smart Software Solutions)Rockwell Automation / Allen-Bradley (Legacy)Updated 2025

CODESYS

CODESYS GmbH (3S-Smart Software Solutions)

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

FREE basic version - perfect for learning

RSLogix 500/5000

Rockwell Automation / Allen-Bradley (Legacy)

76
Overall Score
Price:$$
Learning:intermediate
Adoption:75%

Massive installed base - many jobs still require it

Overall Winner

CODESYS leads with an overall score of 85/100

CODESYS is the stronger overall choice with better pricing. However, RSLogix 500/5000 may be preferable if you prioritize community support or if you're already committed to the Rockwell Automation / Allen-Bradley (Legacy) ecosystem.

Score Breakdown

CategoryCODESYSRSLogix 500/5000
Overall
85
76
Pricing
100
70
Ease of Use
70
60
Features
86
74
Industry Adoption
83
85
Community Support
100
100
Career Value
77
74

💰Pricing Comparison

CODESYS ($) is significantly more affordable than RSLogix 500/5000 ($$). CODESYS costs between $0 and $2,000, while RSLogix 500/5000 ranges from $1,000 to $10,000.

📚Learning Curve

Both CODESYS and RSLogix 500/5000 have similar learning curves (rated 5/10). Expect 2-4 months to become proficient with either platform.

⚙️Features & Capabilities

CODESYS offers 11 key features including safety programming, motion control, robotics integration. RSLogix 500/5000 provides 10 key features with safety programming, motion control. CODESYS offers a comprehensive feature set for industrial automation.

🏭Industry Adoption

RSLogix 500/5000 has 75% market adoption compared to CODESYS's 70%. RSLogix 500/5000 dominates in North America, Latin America, while CODESYS is strongest in Europe, Asia-Pacific, North America. RSLogix 500/5000'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 RSLogix 500/5000 works with Allen-Bradley, Rockwell Automation PLCs. Both are vendor-specific solutions optimized for their respective hardware ecosystems.

💼Career Prospects

Both CODESYS and RSLogix 500/5000 offer similar career value with certification programs. Knowledge of either platform will open automation career opportunities.

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

RSLogix 500/5000 Overview

Key Strengths

  • Massive installed base - many jobs still require it
  • Well-understood and documented
  • Stable, mature platform
  • Simpler interface than Studio 5000 for basic tasks

Limitations

  • No longer actively developed (legacy software)
  • Being phased out in favor of Studio 5000
  • Won't work with newer PLC hardware

Best For

Maintaining existing MicroLogix/SLC 500 systemsCompanies with large legacy installationsLearning fundamentals before Studio 5000

Recommendations

For Beginners

Both are suitable

For Professionals

CODESYS

Budget-Constrained

CODESYS

Enterprise Use

Both are suitable

Frequently Asked Questions

Which is better: CODESYS or RSLogix 500/5000?

CODESYS is the stronger overall choice with better pricing. However, RSLogix 500/5000 may be preferable if you prioritize community support or if you're already committed to the Rockwell Automation / Allen-Bradley (Legacy) ecosystem.

What is the price difference between CODESYS and RSLogix 500/5000?

CODESYS ($) is significantly more affordable than RSLogix 500/5000 ($$). CODESYS costs between $0 and $2,000, while RSLogix 500/5000 ranges from $1,000 to $10,000.

Which is easier to learn: CODESYS or RSLogix 500/5000?

Both CODESYS and RSLogix 500/5000 have similar learning curves (rated 5/10). Expect 2-4 months to become proficient with either platform.

Which has better career prospects?

Both CODESYS and RSLogix 500/5000 offer similar career value with certification programs. Knowledge of either platform will open automation career opportunities.

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