CODESYS^® Comunicati e aggiornamenti

Error Analysis & Diagnostics

• Improved Diagnostic Accuracy with ErrorAnalyzation: Corrected error reporting for alternative branches and multiple transitions to ensure precise fault localization in complex logic.

Editor & Workflow Efficiency

• Enhanced Refactoring Capabilities: Improved refactoring functionality for steps and FB instances, including calls within FBD actions.
• Optimized Editor Usability: Improved user experience through optimized input field scaling and horizontal scrolling.

System Stability & Compliance

• Corrected State & Setting Management: Fixed issues regarding the persistence of project settings and transition state management during editor sessions.

Maintenance release
Fixes sporadic issues with the atomicity of the TESTANDSET operator.

Fixes sporadic issues with the atomicity of the TESTANDSET operator.

This version improves the handling of problems with subscriptions on the server side: access to subscription status codes; error code for rejected subscription.

Highlights of this release:

• Customizable toolbox – add your own items and access frequently used blocks directly
• Improved parallel branches – insert markers on hover, clearer parallel insert commands, new Show Insert Positions toggle (Ctrl+Shift+M), plus several reliability fixes for closing branches
• EN/ENO compile fixes – MOVE and operator boxes (ADD, AND, MUL, OR, SEL, SUB, XOR) with EN but without ENO now compile as expected (relevant after LDFBD → LD2 conversion)
• Editor fixes – Unicode/CJK variable names no longer truncated; negated contacts colored correctly in online view; accurate error locations on NC contacts and transitions; connected inputs and outputs preserved on FB type change
• Stability – crash on block type change, Project Compare Allow Single exception, and cross-reference list freeze all resolved
• Hardened PLCopenXML import/export – FBs without EN/ENO pins, edge-detection modifiers, schema ordering issues
• File-Based Storage support for LD2 POUs (requires SP22 + File-Based Storage 1.0.0.0)

This update introduces FSoE Master support, improved diagnostics, and time provider redundancy functions.

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Enable usage of codegenerators for ARM architecture in CODESYS 4

This version can only be installed if no older versions (before November 2025) of several add-ons are installed:

• No old setup add-ons: CODESYS Communication, Visualization, Ethernet IP, Application Composer.
• No old optional add-ons: CODESYS ControlElement Library, IIoT Libraries, OPC UA Client API.
• No CODESYS OPC UA Pub/Sub before 1.4.0.0 (release not yet scheduled).

Reason: It cuts dependencies on CAA libraries. This introduces an incompatibility where user-defined data types are used in Element Collections (they now need to implement MBM.IDisposable).

Additionally it includes fixes for multi casting (Net Base Services) and online change (Element Collections),
and provides an updated library project template.

Highlights of this release:

• New file format – cleaner structure, easier to diff
• Normalized line endings for reliable Git operations across platforms
• UX refinements aligned with CODESYS SP22
• Compatible with CODESYS Git V2.0.0.0
• Improved Scripting driver
• Read-Only Mode – usable without a license

Designed for file-based project workflows in CODESYS Development System.

Fixed hard coded limit for communication channels

This version contains bug fixes, improvements and the following new features:

• support for Beckhoff MX-System
• support for Balluff IO-Link gateways BNI XG1, XG3 and XG5
• improvements, when used together with CODESYS Redundancy

This version will contain bug fixes, improvements and the following new features:

• Topology Editor that displays graphically all involved devices and its connections.
• Dynamic Reconfiguration to support online change when modifying/adding devices.
• Support of GSDML specification V2.46
• Show newest installed device only
  • Per default, no more duplicates / older versions of a device are shown.
• SysEthernetBurst
  • Use new runtime interface (included in SP22) that sends and receives multiple Ethernet frames with one call.
  • Noticeable performance improvement.

This version contains bug fixes in various product areas.

This version contains bug fixes in various product areas.

This version contains bug fixes in various product areas.

This version contains bug fixes in various product areas.

This version contains bug fixes in various product areas.

Add the possibility for SDK customers to add custom tools to the MCP Server.

• New file management feature: Deploy additional files along with applications
• Remote access to Edge Gateway logs
• Automatic certificate renewal for encrypted connections

This version includes bug fixes.
The inlcuded third-party components will be updated to the latest available versions.

Maintenance version.

Maintenance version.

Maintenance version.

Update to runtime SDK V3.5 SP22 Patch 3 - ‎Increased robustness and bugfixes for Control SL Deploy Tool

Maintenance version.
It will support the IO Device Description Scheme 1.1.5.

New release of CODESYS SIL2, based on standard CODESYS V3.5 SP22 Patch 1. This is the first LTS release, providing security updates for 6 years — a key enabler for CRA compliance. Adopting this version establishes a solid foundation for meeting Cyber Resilience Act requirements.

With this version we will improve the usability for 
certificate signing request (CSR) and
certificate revocation lists (CRL)

This version brings two new visualization elements:

• Donut Gauge / Round Slider to display and modify values
• Donut Chart for a quick overview of percentage values

In addition, many more improvements and bug fixes have been made.

The data source online change can be licensed and activated using the new store product "Online Configuration Change"

This version introduces complete UI-less Python scripting. Also it fixes a problem with very long module descriptions (>32k) and adds forward compatibility with upcoming CAA-free BASLIB 5.0 (and also still with CAA-based BASLIB 4.0.1).

This version will contain bug fixes.

• Optional additional I/O channels that contain diagnosis information of each single Modbus channel.
• New FB ModbusTCPRequestServer that allows the application to control the server's answers to requests from the client.

Maintenance release

Allow UTF-8 identifiers for the trace name and traced variables in the Trace Editor.

This new library add-on contains a library with elements (PID, filters, …) for programming control loops: the library ControlLoop (which used to be available in the store as "Control Loop Library").

Maintenance and usability version

This version contains bug fixes.

This release will fix several Bugs, including but not limited to:
LDFBD-405:
A transition object, implemented in LDFBD with an unknown block at the top level causes an exception.
LDFBD-390 and related other Bugs:
Parallels containing Boxes may have distorted lines.

This version contains bug fixes

This version contains bug fixes.

This version patches a critical bug.

This version

• adds support for binary HTTPS (application/octet-stream) and for HTTPS and Mail with OAuth2 Grant_Type = Device_code
• provides an example for using Azure Event Grid with the MQTT Client library
• provides maintenance of Azure IoT Hub, MQTT Client, Web Client, Mail Service
• supports library inspection and license manager
• is forward compatible with upcoming CAA-free BASLIB 5.0 (and also still with CAA-based BASLIB 4.0.1)

Maintenance release containing bug fixes.

New version enhances the SubNodeCom library to provide more detailed and precise diagnostic information.

This version contains performance improvements and bug fixes.

• added out-of-license message with configurable threshold
• added possibility to execute configurable batch file, once license threshold is reached
• added license restore support
• support of license name instead of only product codes

This version introduces message security for Pub/Sub for runtimes V3.5 SP21 or later (with runtimes < V3.5 SP22, it must use the same certificate using in other OPC UA functions). Additionally, the OPC UA Pub/Sub license is included in the "software metrics" dialog.

This version contains bug fixes.

Fixes issues with exception handling in IEC code. This is required to resolve issues with using OPC UA and BACnet on devices with LoongArch CPUs.

This version contains bug fixes and some small additions to existing scripting drivers.

CODESYS SoftMotion Staubli allows to control Staubli robots of the TS2 and TX2 series with CODESYS using the uniVAL drive interface.

CODESYS EtherCAT version 4.10.0.0 contains a known issue with the function "Load PDO info from the device", which prevents it from working properly with the CODESYS SoftMotion Staubli Support package. Please use either an earlier or a newer version of CODESYS EtherCAT instead.

This version contains several bug fixes including

Refactoring:

• Dialog shows wrong places of changes in page-oriented CFC
• Renaming an FB instance leads to rename of box type

Project Update:

• When updating a project from SP16P9 (CFC 4.2.0.0) to newer versions like SP19P4 or SP20P2 (CFC 4.3.0.0 / 4.4.0.0), the alignment of boxes (inputs/outputs) and connecting links changes unexpectedly due to the introduction of the "Hide namespaces" feature

This version optimizes the treatment of 7bit-ASCII-only strings and simplifies the exchange with classic string functions by an internal terminal null.

Contains a fix for issues with the TEST_AND_SET operator not working reliably.

Issues with jumps in very large POUs on ARM Cortex targets are fixed.

Bug fix version for a more robust online communication with CODESYS Safety Extension.

Preview version of the Simulation Interface for evaluation and integration in simulation tools (please contact sales): The Simulation Interface integrates CODESYS applications into machine simulations (Software-in-the-loop) by a toggle switch using OPC UA mechanisms.

This version contains bug fixes.

Service packs for CODESYS V3 are released at annual intervals and include numerous improvements and bug fixes.

Service packs for CODESYS V3 are released at annual intervals and include numerous improvements and bug fixes.

Rilascio di manutenzione contenente correzioni di bug e miglioramenti dell'usabilità.

Last maintenance release before start of the service phase.

Created the possibility for device manufacturers which use their own licensing mechanisms for the engineering environment to integrate the CODESYS Professional Developer Edition into their systems.

This version contains bug fixes and minor improvements.

The POU Visu Generator can generate visualizations from SFC and Ladder POUs. If a transition of a SFC POU is implemented as Ladder, a navigation into the Ladder transition and back to the SFC POU is generated. A great possibility to view SFC and Ladder diagrams within the visualization.

This version contains several bug fixes and minor improvements.

The usage of the memory tools is supported for core dumps.

This version adds language support for Turkish and Portuguese and contains a bugfix.

This release fixes the problem that projects may get modified on opening, when they use libraries from Inspection-supporting library addons (currently CODESYS Base Libraries, CODESYS String Libraries).

This is a maintenance release fixing known issues for the usage of packed data structures. Furthermore, the usage of the FPU can be disabled explicitly for devices.

Support new functionality standardized in BACnet standard ASHRAE 135-2020 and protocol revision 25.

Update of "CODESYS Application Composer Single License" only, no functional changes. This update is necessary for running "CODESYS Application Composer" (any version) in SL-mode on any new CODESYS versions starting with V3.5 SP19 Patch 3. It cannot be used with older CODESYS versions. For using "CODESYS Application Composer" with older CODESYS versions, use the old "CODESYS Application Composer Single License".

Safety certificate update to cover the new versions of the safety norms IEC 62061:2021 and ISO 13849:2023