08/14/2025
ctrlX AUTOMATION | Release Notes | LTS

3.6 LTS Release Notes

ctrlX AUTOMATION and ctrlX OS continue to develop rapidly in terms of its functionality and possible use cases. Bosch Rexroth therefore publishes new releases of apps and engineering software at regular intervals.

This gives the community, customers and developers access to new functions. LTS releases (Long Term Support) are published once a year at the end of July. They are maintained over several years in the form of Service Packs (SPx) with bug fixes and security updates.
For details on release cycle and download area, see Release cycle of Apps and Engineering software.

Following are recent new features and highlights of the current version since the 2.6 SPx LTS release.

New ctrlX OS Apps by Bosch Rexroth 👍

New ctrlX OS Apps by ctrlX World Partners

New ctrlX CORE hardware products 👍

The modular ctrlX COREplus is now available across all performance levels with AI capabilities. An optional AI module enables efficient AI integration directly at the edge, enabling localized processing and analytics.

New features

ctrlX OS - the operation system - new features and updates

  • Mount network drives with NFS and SMB 👍: mounting network shares for reading and writing files.

  • Storage: File browser and WebDAV for external media (USB stick and SD card) 👍: directly read and edit content on mounted storage media.

  • Storage: Partition Manager

  • Support of redundancy network protocols HSR and PRP

  • TCP Dump

  • Backup improved UX: support of password, selectively restore 

  • Solutions: Configurations and content can be compared interactively

Fieldbus & communication

ctrlX OS - PLC

  • NEW PLC License Packets: tailored Solutions for the application needs. 👍

  • Integration of CODESYS V3.5.20.50

  • Open API provides functions to manage PLC applications

  • New authorization scheme (View, Operate, Manage)

  • New CODESYS PLC Add-ons EtherCAT Master, IO-Link
    (only via CODESYS EtherCAT Master or CODESYS PROFINET Controller​)

  • New CODESYS Visualization licenses, scalable and optimally tailored to your application 👍

  • Loading of configurations with different retain data size

ctrlX OS - OPC UA Client

  • Performance improvements (Data Layer Bulk functions)

  • Supports now built-in data types “Bytestring” and “Guid”

ctrlX OS - OPC UA Server

  • Supports now built-in data types “Bytestring” and “Guid”

  • Reading variables returns now SourceTimestamp, ServerTimestamp & StatusCode

  • New authorization scheme (Access, View, Manage)

ctrlX OS - OPC UA Pub/Sub

  • Configuration is saved in JSON format​

  • Configuration via ctrlX Data Layer possible​

  • For an improved diagnostic: displaying publisher / subscriber configuration in ctrlX CORE UI​ 👍

  • Supporting nodes from loaded OPC UA information models​

  • Runtime mode (standby function) for publisher / subscriber

ctrlX MOTION

Standard Motion

  • Performance boost for ctrlX CORE X3 and motion applications

  • new functions to support axes in open loop operation

  • special torque controlled operation mode for clamping or tightening applications

  • flexible operation mode change on-the-fly

  • programmable limit switch function

  • extended web based engineering for complete configuration and commissioning of motion systems

  • extended motion interface for easy PLC commanding of all motion functions 👍

Synchronized

  • Writing a Flexprofile depending on your needs up to deterministic writing for high dynamic applications

  • Extension of our PLCOpen function blocks and AxisInterface for more details and an easy access to needed information

  • More flexibility via activating the slave axis offset at the switching position of a flexprofile

  • Access to real time data of raw actual position of the encoder axis which can be used for applications like flying shear

  • Additional filters for encoder axis with and without the extrapolation of the actual position value

  • Extension of the ctrlX MOTION Cam Designer with the preview and the option to export a function block for the PLC Engineering

 Robotic

  • Belt synchronous movement for Articulated, Delta and all other Kinematics 👍

  • Several kinematics like Delta 2-Axis slide, 3-Axis Flex Stamper, 2D Parallelogram, customer specific Kinematics via ctrlX Motion API

  • Point list

  • Jogging in Tool Coordinates 

  • Extended blending function with PathSmooth

  • Improved and very smooth 2D orientation interpolation (SLERP)

  • Working areas / safe zones online changeable with continuous monitoring

  • Violated protection zone or workspace in the Data Layer

  • Programming via G-Code

  • Graphical programming with IDE

    • Templates and modules with parent / child relation

    • Auto import of axes and kinematics configuration from Motion app

    • Teach Points from ctrlX MOTION as input for blocks

    • Several scopes available: full access, editor, viewer

CNC

  • G-Code Runtime App

    • Interpreter with basic set of common G-Code Commands (G0, G1, G2, G3, G47, G54, M-Codes, ...)

    • Modern High Level Language Extension with Variables, Sub-Programs and control structures (IF, THEN, ELSE, WHILE, FOR, ...)

    • Read and Write Access to the complete Data Layer

    • Realtime synchronization with other Apps like PLC 

ctrlX MOTION API 👍

SDK for real time programming available for the next level of freedom in motion control. Motion programmers can use the complete tool box of the ctrlX MOTION app and extend it with own special motion IP via the ctrlX MOTION API.  

ctrlX OS - EtherCAT Master

  • Configure and use multiple EtherCAT Master instances on one ctrlX COREplus X5 or X7 👍

  • Usage of Sync Units to group your slaves for a purposeful error reaction of the different sync units

  • Up to 1024 slaves with up to 512 sync units on an ctrlX COREplus X7

  • Easily read and write variables via the web Engineering without additional software

  • Display of SoE parameterlists with the export option in the web Engineering

3D Viewer

  • Improvements of real-time subscription to ctrlX Data Layer nodes

  • Implementation of visual Effects (visibility, color, transparency) for model objects depending on the value of ctrlX Data Layer nodes

  • Introduction of parent favorite model, which applies to new users and those without model management permission

  • Customization of the graphics window (color of background and grid, vertical gradient, panoramic image)

  • Support of parallel kinematics in conjunction with the ctrlX MOTION 👍
    to visualize any kinds of robot types

  • Graphical representation of teach points for robotic applications defined in ctrlX MOTION

  • New licenses: Basic license for integrating the 3D Viewer into a machine or robot HMI, Advanced license with the complete functionality, e.g. for engineering purposes (Note: existing licenses remain valid)

ctrlX OS - Model Connect

  • In addition to the ability to run MATLAB scripts and Simulink models within the ctrlX OS environment, the Model Connect app now also supports the upload, compilation and execution of Co-Simulation FMU V2.0 👍

  • Beside the already available view and manage permission the operate permission has now introduced

  • New license: Advanced license for limitless usage of the Model Connect App (Note: existing Performance licenses remain valid)

ctrlX OS - Oscilloscope

  • Performance improvements during the rendering of large amounts of data

  • Reading, displaying data from and saving of single-axis measurement data to InfluxDB

  • "Continue" mode for single axis measurement

  • UX improvements for an user-friendly application👍
    re-design of the UI, persistency of instance changes, bit analysis diagram, user-defined signal aliases

Engineering

ctrlX PLC Engineering

  • Integration of CODESYS V3.5.20.50

  • all licenses at a glance: adapted license overview shows now also PLC Add-on licenses 👍

  • Library CXA_DataLayer supports data type WSTRING, subscriptions & events

  • Library CXA_OPC_UACLIENT is optimized for subscriptions

  • Library CXA_EthercatMaster

    • Reading the configured AoE-NetID of an EtherCAT slave device

    • Asynchronous reading of data from an AoE EtherCAT slave

    • Asynchronous writing of data to an AoE EtherCAT slave

    • Reading the Distributed Clock configuration as specified in the EtherCAT network configuration

ctrlX IO Engineering

  • Integration of CODESYS V3.5.20.30

  • Memory viewer for a detailed overview of the raw data

  • Support of SCI (Sub Device Configuration Information) files for the configurations of complex devices

  • Virtual Ethernet port is enabled by default in new projects

  • Improvements in handling Sync Units

  • PDO (Process Data Objects) upload via I/O Engineering

ctrlX WORKS

  • New "Utilities"menu with the "ctrlX OS Recovery" utility program for creation of ctrlX OS recovery media

  • Interface for integrating external software into the ctrlX WORKS frame 👍
    to have one central entry point for all engineering tasks, including third-party tools

Download

  • Software Download here.

[table]

Release

Release date

Release notes

1.20 LTS

03/2022

1.20 LTS release notes

2.6 LTS

07/2024

2.6 LTS release notes

3.6 LTS

07/2025

3.6 LTS release notes

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