The new version is ready for download at the CODESYS Store.

The corresponding release documents can be downloaded under CODESYS Release Information.

 

The highlights at a glance:

Engineering

• New: Folder/file-based project format (File-Based Storage – Preview Version 0.9.0.0, optional as part of the Professional Developer Edition) optimized for version control and collaborative development. Conversion function for existing projects
• New: AI-powered chatbot in CODESYS Online Help – answers questions about CODESYS based on the current documentation
• New: MCP add-on (Model Context Protocol) for connecting AI tools to the engineering system (release shortly after SP22)
• Static Analysis: Export/import of analysis results in SARIF format for CI/CD toolchains; quick fixes applicable across projects, less false positives/negatives
• Scripting: New specific methods for POU generation, access to compiler version and project defines via script
• LD editor: Significant performance improvements, new tooltips, more convenient parallel branches, unified processing order with LD/FBD
• Recipe Management: Significantly accelerated updating of structured variables, optimized code generation for large recipes
• Installer: Reference dependency check before installation
• String Libraries: Optimized ASCII processing

Runtime

• SP22 as a Long-Term Support release with security updates for the next six years
• CRA-ready with certifications according to ISO 27001, IEC 62443-4-1, and IEC 62443-4-2
• Improved latencies through extended XDP support for Ethernet-based fieldbuses
• Rootless mode for SoftPLCs
• Control SL: optional deactivation of Hyper-Threading and RT throttling, full I2C, SPI, and GPIO support for all Linux runtimes, Deploy Tool with RPM package manager support
• Security Agent: Certificate Signing Request (CSR) generation directly on the PLC
• Redundancy: Configurable synchronization intervals for registered areas (cyclic or one-time).

Safety

• New: Virtual Safe Control SL with FSoE support, improved Time Provider, and external FB interface
• Reading Safety Application ID via the context menu

Automation Server

• Pre-release of CODESYS Automation Server On-Prem for operation on your own infrastructure
• Central overview, management, and archiving of all CSRs of connected PLCs; creation of new CSRs for multiple use cases and multiple PLCs simultaneously
• Central file system in the Automation Server for storing, sharing, and transferring files—such as recipes or configurations—between clients, PLCs, and users directly via browser
• New dialog for selecting gateways in the Development System
• Ability to control the Automation Server Connector via script
• Overview of all WebVisus instances available on a PLC in the PLC details, including remote access
• Login lock reset by administrators

Visualization

• Revised input dialogs: Numpad/keypad operable via physical keyboard, language-specific key mappings, new dialogs for date/time data types.
• Significant optimizations in code size and compilation time
• Triggering alarms via API
• WebVisu with improved password manager support, file access protection
• Configurable scaling factor for dialogs, use of the PLC real-time clock
• TargetVisu Overlay with media player support
• Non-blocking function blocks for real-time applications.

Motion CNC Robotics

• New: SoftMotion Stäubli Support – Control of TS2/TX2 robots directly from the IEC application via the uniVAL-Drive interface
• Robotics: Additional axes, e.g., for synchronous gripper/conveyor movements, new TMAxisDistance transition mode for blending in the axis space
• CNC: G-Code G31 (Clear Remaining Path), DryRun mode for commissioning/debugging, robotics kinematics in CNC applications via SMC_TRAFO_Wrapper
• High-precision path switching points with look-ahead
• Cam discs: New segment types Poly7, modified and inclined sine
• New: Drive support for Maxon EPOS4, Danfoss ISD, Kollmorgen KED, and BoschRexroth CtrlX Drive (SoE)

Fieldbus

• Online change for devices
• PROFINET: Reparameterization of devices during operation and improvements to PROFIsafe diagnostics
• Modbus: CPU and line redundancy for fail-safe systems, channel status I/O channels available
• EtherCAT: Correct EoE routing while CoE is active, new device support (EL6633, IO-Link Gateway SIG300)

Communication

• New: DNP3 V2.0 with outstation and master (not backward compatible with V1.0)
• OPC UA Server: Fully certified Embedded Device Profile, compliant A&C alarms, NodeSet2.xml export for offline engineering of OPC UA clients.
• OPC UA PubSub: Message Security for encrypted and signed messages (as of Runtime V3.5 SP21).
• OPC UA Datasources: Online change support, shared application client instance per application
• IIoT Libraries: OAuth2 Device Code in the Web Client, OAuth2 for Mail Service, Azure Event Grid example for MQTT, compatibility with Base Libraries 4.0.1 and 5.0
• OPC UA Client API: Timestamps, improved diagnostics, array size checking with specific error codes.