CODESYS is described as 'The leading manufacturer-independent IEC 61131-3 automation software for engineering control systems. It is used to program many hundreds of different controllers, PLCs, PACs and other automation system, even via an Industry 4.0 interface' and is an app in the development category. There are more than 10 alternatives to CODESYS for Windows, Linux, Web-based, Mac and SaaS. The best CODESYS alternative is logi.CAD 3 - Engineering Toolkit. It's not free, so if you're looking for a free alternative, you could try 4diac or Outseal. Other great apps like CODESYS are LOGO! Soft Comfort, CX-One, TIA Portal and LogicLab.
The programming tool logi.CAD 3 is built on eclipse and its focus is on efficient and effective programming of controllers according to IEC 61131-3 for every kind of size - from Micro-Controllers to Multi-Core Industry PCs.
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LOGO! Soft Comfort is software for programming simple Siemens LOGO! PLCs. Programming is done in one of two graphical programming languages - FBD (Function Block Diagram) or LAD (Ladder Diagram).
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CX-One software allows users to build, configure and program a host of devices such as PLCs, HMIs and motion-control systems and networks using just one software package.
TIA Portal is the key to unlocking the full potential of Totally Integrated Automation (TIA). The pioneering engineering framework optimizes all planning, machine and process procedures and offers a standardized and integrated operating concept.
Eclipse 4diac™ provides an open source infrastructure for distributed industrial process measurement and control systems based on the IEC 61499 standard.
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Outseal PLC is an IDE in the form of Ladder Diagrams based on Arduino Board. This PLC has hardware that is open to the public, you can download and learn the electronic circuit freely and make yourself at home at an affordable price.
straton is a flexible IEC-61131-3-based soft PLC and data processing environment for embedded platforms, developed and maintained by STRATON AUTOMATION.
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Online PLC programming simulator for Ladder Logic and Structured Text, with live scan-cycle visualisation, HMI tools, robots and 3D factory scenarios.
Universal automation workshop for creating automation programs, generating PLC code, creating Hmis, creating pneumatic, electric, hydraulic diagram simulations, creating 3d simulation of machines.
Free, open-source browser tool to edit and simulate GRAFCET and Ladder logic together, with animated HMIs connected via shared variables.
An open source project to have a free ladder and sequential (grafcet) programming software coded in C language (to be used for educational as PLC Simulator, training, in Software PLC on PC computers or embedded platforms, ...).
