4diac vs CODESYS

4diac — 4diac is an open source framework for distributed industrial process automation and control. It enables running real-time control applications distributed over multiple devices.

CODESYS — CODESYS is an industrial software platform used for developing and runtime systems for programmable logic controllers. It allows creating control applications based on the IEC 61131-3 standard.

4diac offers IEC 61499 compliant runtime for distributed industrial automation, Supports programming in FBD, LD, ST, C/C++, Built-in simulation for testing, Communication via OPC UA, MQTT, HTTP, Runs on Linux, Windows, Raspberry Pi, while CODESYS provides IEC 61131-3 compliant development environment, Supports all 5 IEC languages (LD, FBD, ST, IL, SFC), Built-in simulation and debugging, Runtime system for PLCs, OPC UA server and client.

4diac stands out for Open source and free, Portable across devices and operating systems, Support for common IEC 61131-3 PLC languages; CODESYS is known for Compliant with industry standards, Supports multiple PLC brands, Graphical and text-based programming.

Feature	4diac	CODESYS
Overall Score	N/A	N/A
Primary Category	Development	Development
Pricing	Open Source	N/A

Product Overview

4diac

Description: 4diac is an open source framework for distributed industrial process automation and control. It enables running real-time control applications distributed over multiple devices.

CODESYS

Description: CODESYS is an industrial software platform used for developing and runtime systems for programmable logic controllers. It allows creating control applications based on the IEC 61131-3 standard.

Key Features Comparison

4diac Features

• IEC 61499 compliant runtime for distributed industrial automation
• Supports programming in FBD, LD, ST, C/C++
• Built-in simulation for testing
• Communication via OPC UA, MQTT, HTTP
• Runs on Linux, Windows, Raspberry Pi

CODESYS Features

• IEC 61131-3 compliant development environment
• Supports all 5 IEC languages (LD, FBD, ST, IL, SFC)
• Built-in simulation and debugging
• Runtime system for PLCs
• OPC UA server and client
• Integrated visualization with CODESYS Visualization Editor
• Source code management
• Alarm management
• Recipe management

Pros & Cons Analysis

4diac

Pros

• Open source and free
• Portable across devices and operating systems
• Support for common IEC 61131-3 PLC languages
• Built-in simulation features
• Active community support

Cons

• Limited adoption compared to commercial options
• Steep learning curve
• Lacks some advanced features of commercial SCADA systems

CODESYS

Pros

• Compliant with industry standards
• Supports multiple PLC brands
• Graphical and text-based programming
• No licensing fees for the CODESYS runtime
• Large user community

Cons

• Steep learning curve
• Limited technical support compared to vendor-specific software
• Lacks some advanced features of proprietary systems
• Requires target device license from hardware vendor

Pricing Comparison

4diac

• Open Source

CODESYS

• Not listed