CODESYS Control Runtime Toolkit

SDK for the implementation of industrial IEC 61131-3 controllers with a customized PLC runtime system programmable with CODESYS

A Software Development Kit (SDK) for the Creation of Customized IEC 61131-3 Controllers

The CODESYS Control Runtime Toolkit is a comprehensive software development kit to help you implement the PLC Runtime System CODESYS Control on your hardware. The kit is responsible for the execution of the programmed IEC 61131-3 code and the debugging of the application developed with CODESYS.

You are a CODESYS user:
Millions of CODESYS-compatible single devices and over 1,000 different device types from more than 500 manufacturers offer you a large range of hardware for your automation projects. CODESYS Inside offers a selection of manufacturers that offer CODESYS-compatible devices. CODESYS Control is already implemented on all available CODESYS controllers. This means: They are all programmable with CODESYS and you do not need the CODESYS Control Runtime Toolkit.

You are a device manufacturer:
Using the CODESYS Control Runtime Toolkit, you can adapt the RTS CODESYS Control to fit the most different platforms and requirements. This lets you develop a customized industrial controller with the functionality you need, programmable with the CODESYS Development System standard tool.

Scope of the CODESYS Control Runtime Toolkit

  • Base runtime system delivered as object code or source code, depending on the target system
  • Tool-guided configuration of the required base components and add-on components for the device-specific runtime system
  • Comprehensive documentation on the runtime system integration and the adaptation to the target system
  • Examples of I/O drivers and runtime libraries as source code
  • Training and adaptation workshop with our experienced project engineers to help you port the CODESYS Runtime System to your target device  

Features CODESYS Control

  • Scalable functionality:
    adaptable to the performance and memory capabilities of the target device for different 32- and 64-bit CPU platforms (CISC/RISC), delivered with a system configurator
  • Runtime system as a product: 
    tested quality, proven in thousands of industrial applications, relatively fast to implement
  • Documented adaptation interfaces:
    adaptable and expandable to fit all sorts of different device specifications and requirements
  • Ready-to-use for Microsoft Windows / Linux® / VxWorks®:
    tests on reference platforms can be done straight away, SoftPLC for PC-based and standard embedded systems available
  • Depending on the system environment:
    either object code or source code is provided easy adaptation to different operating systems and development environments (toolchains)

  • Integrated security functions:
    protect the device and communication in Industry 4.0 environments, e.g. against unauthorized access or copying of the application code

Supported standard platforms

CPU series  With operating system 
Intel® 80x86: Pentium®, Atom® (full 32-bit and 64-bit support)  Windows (with / without own real-time extension), Linux (optionally with OSADL real-time extension), VxWorks*, QNX®
Arm®-based CPUs (Arm®v6-Armv9), Arm® Cortex® CPUs (Thumb®2 Instruction Set: Mx, Ax, Rx)  Linux (optionally with OSADL real-time extension), VxWorks*, QNX, without operating system (only for Cortex M3, M4, R4)
Power Architecture®: PowerPC® and derivatives Linux (optionally with OSADL real-time extension), QNX, VxWorks* 
Infineon AURIX™ TriCore™ Without operating system (TC1798)

Other target device platforms

In the CODESYS Development System, integrated compilers are available for the following CPU platforms:

  • Renesas SH 2 / 3 / 4, V850™, RX
  • Analog Devices Blackfin®
  • NXP (Freescale) ColdFire®
  • Texas Instruments DSP C2xxx™ / 28x™

The CODESYS Development System generates native machine code for all cited CPU platforms. As a result, the CODESYS Control runtime system can process the generated application code without an external compiler for optimum performance. Intelligent devices based on these and other CPU platforms can be equipped with CODESYS Control on request. Reference implementations are available for more frequently used combinations of CPU and operating system (see below). With customization support and services, implementing CODESYS Control is possible on almost any operating system platform.

Reference Platforms for Embedded Systems

CODESYS Control can be used on almost all platforms. It is regularly tested and updated on the following reference platforms.

Platform / CPU Hardware Toolchain
TriCore / TC1798 Infineon TriBoard TC1798 Tasking®
Arm / CortexR4 TI TMS570™ MCU Development Kit Code Composer Studio™ V5.1.0
Arm / CortexM4 MCBSTM32F400 Keil® / IAR, ST/Link V2

How to implement CODESYS Control

  • Installation of the CODESYS Control Runtime Toolkit with the available base components and add-on components
  • Tool-guided selection and configuration of the components for the desired functionality of the runtime system
  • Adaptation to the operating system interface, implementation of customized drivers or integrated add-on functions (“external libraries“), connection to external systems etc. on the basis of the provided interfaces
  • Linking and compiling all components to the executable runtime system and implementation of the system on the target
  • Provision of the device driver (Device Description file) for the usage of the device in the CODESYS Development System


Installation of SoftPLC systems for standard platforms, such as devices with x86/Arm-compatible CPUs and operating systems like Linux or Windows. These SoftPLCs can be purchased in the CODESYS Store. They can be adapted to typical tasks using the CODESYS Control Extension Package, e.g.

  • Use of existing C code and APIs from the IEC application
  • Support of local or connected I/Os, retentive data, start/stop switches
  • Triggering of external events as well as registration on application events
  • Provision of own configuration services using PLCShell commands

The package comes free of charge with the CODESYS Installer.


You are a system integrator or a user in the machine/plant construction sector or the like:
Your device manufacturer has already implemented CODESYS Control on your device and you do not need the Toolkit.

You are a manufacturer of programmable devices:
Order the CODESYS Control Runtime Toolkit suitable for your system configuration and the required perfromance. For more information or an offer please contact our sales department under

A trial version of the SoftPLC under Windows is part of the standard setup of the CODESYS Development System. Additional demo versions of SoftPLCs for standard device platforms can be found in the CODESYS Store.

The latest releases of CODESYS Development System can be downloaded for free from the CODESYS Store.

CODESYS brochures and information material

CODESYS - One software. All applications. Your Automation Solution.
Version: 11/2021
pdf 4 MB
CODESYS - One software. Any field of application. Your automation platform.
pdf 3 MB
Various suppliers present CODESYS-compatible devices and exciting solutions that can be useful for your automation tasks. (Only available in german language.)
Version: 11/2022
pdf 3 MB