Industrial Automation Enters a New Era

In today's rapidly evolving industrial automation field, the convergence of Operational Technology (OT) and Information Technology (IT) is no longer a forward-looking concept, but an inevitable choice for enterprises to enhance their core competitiveness. Manufacturing companies and system integrators worldwide are actively seeking breakthroughs, attempting to improve engineering efficiency, simplify team collaboration, and effectively manage system complexity without significantly increasing project costs.

In response to this pressing market demand, global industrial giant Siemens has completed a major functional upgrade to its innovative environment for IT-based engineering development—SIMATIC AX Logic Control Engineering (LCE). This update marks another significant milestone in the development of Software-Defined Automation (SDA). By introducing the new text-based ladder diagram programming tool (XLad) and extending its hardware compatibility to the SIMATIC S7-1200 G2 controller in basic automation, Siemens has successfully brought advanced IT workflows to traditional industrial automation and frontline operations teams, bridging the gap between the digital and physical worlds.

Empowering OT Teams: Making IT Workflows Easily Embrace Frontline Operations Personnel

Previously, the SIMATIC AX LCE development environment was entirely built on a structured text (ST) language. While this approach was popular with automation engineers who preferred software development, it presented a significant learning curve for traditional OT (Operations Technology) personnel, service and operations technicians who were more accustomed to graphical logic programming.

The addition of XLad ladder diagram programming functionality completely breaks down this barrier. As the first graphical programming language integrated into the SIMATIC AX LCE platform, XLad provides an extremely intuitive and visual way to develop control programs.

What does this upgrade mean for global system integrators and overseas buyers?

Significantly reduced onboarding time: Frontline service and maintenance technicians can seamlessly reuse their existing ladder logic experience without spending significant time relearning complex text-based high-level programming languages.

Greatly simplified on-site troubleshooting: The graphical programming interface makes on-site diagnosis and troubleshooting simpler and more intuitive, significantly reducing equipment downtime and ensuring production continuity.

Improved cross-team collaboration efficiency: By seamlessly integrating structured text (ST) and ladder logic within the same development environment, Siemens has bridged the gap between IT software developers and OT field engineers, enabling truly efficient collaborative work.

"By adding ladder diagram programming capabilities to SIMATIC AX LCE, we enable more people in the OT field to collaborate easily and utilize the advanced achievements of software-defined automation," said Rainer Brehm, CEO of Factory Automation at Siemens Digital Industries. "This creates new opportunities for efficient engineering development, equipment maintenance, and team collaboration."

Modern Software Workflow Implementation: XLad Infuses Ladder Diagrams with an "IT Soul"

XLad’s revolutionary aspect lies in its intuitive graphical ladder diagram presentation on the front end, while possessing a modern "text-based" core at the underlying level. It successfully introduces best practices of modern software engineering into the traditional field of industrial automation programming, bringing many "advanced" features previously only available to the IT industry:

1. Perfect Git Version Control Support

Because XLad presents ladder diagram logic in a structured text format in the background, engineering teams can directly use modern version control systems such as Git. Users can clearly track every code change, compare differences between versions, and manage transparently, bidding farewell to the past extensive code management model.

2. CI/CD (Continuous Integration and Continuous Delivery/Deployment)

The upgraded SIMATIC AX LCE supports automated testing and CI/CD processes for ladder logic. This means any code modifications can be automatically verified and tested before deployment to actual factory equipment, greatly reducing errors caused by human negligence and comprehensively improving the delivery quality of engineering software.

3. Seamless Interaction with Structured Text (ST)

XLad exhibits powerful object-oriented features. Users can directly import and reuse efficient libraries created in structured text (ST) into ladder logic applications. This hybrid programming and modular approach allows engineers to implement extremely complex control logic with unprecedented clarity and efficiency.

Bidirectional Programming and AI Adaptation: Future-Oriented Architecture Design

Another highly forward-looking feature in this upgrade is support for bidirectional programming. Engineers can freely switch between a graphical view and a text editor based on their workflow preferences or specific use cases.

This bidirectional switching capability brings dual advantages:

Human Readability: In the graphical view, the code structure is clear, intuitive, and easy to understand, greatly facilitating daily maintenance by on-site technicians.

AI Adaptability: The text-based underlying presentation format is highly compatible with the understanding and training of artificial intelligence (AI) models. This lays a solid foundation for future industrial AI applications; for example, in the near future, using AI assistants (Copilot) to automatically generate, optimize, or debug PLC control logic will become a reality.

Hardware Expansion: Support for S7-1200 G2, Unlocking Basic Automation Scenarios

In addition to the leap in software functionality, Siemens has significantly expanded the hardware compatibility of SIMATIC AX LCE. Previously, this platform primarily supported the high-end SIMATIC S7-1500 controller. Now, SIMATIC AX officially supports the new SIMATIC S7-1200 G2 series controllers.

This hardware expansion is a highly strategic move. This means that the numerous benefits of software-defined automation can now be applied to cost-effective, basic automation projects. Small and medium-sized enterprises (SMEs) and large-volume equipment manufacturers (OEMs) can now enjoy enterprise-level IT-driven advanced development processes in their basic control systems without investing in expensive, high-end hardware.

Regarding this upgrade, Chris Stevens, President of Siemens Digital Industries USA, emphasized its significant implications for the regional market: "US manufacturers are facing increasing pressure to both upgrade automation and strictly control system complexity and project costs. This upgrade to SIMATIC AX perfectly aligns with customer needs, as ladder logic is often their preferred programming language. By supporting programming of the SIMATIC S7-1200 G2, we can cover the practical needs of a large number of automation projects across the United States."

Siemens showcased these innovations at Automatic 2026 in Chicago in June, demonstrating to global customers how to implement more practical, scalable, and easy-to-use software-defined automation in various real-world industrial scenarios.

Industry Summary and Global Supply Chain Insights

For global industrial buyers, system integrators, and automation professionals, Siemens' significant upgrade to SIMATIC AX signifies a shift in industry trends. It powerfully demonstrates that software-defined automation is shedding its "high-tech" label and becoming a mainstream solution capable of empowering daily OT (Operational Technology) maintenance and compatible with basic automation hardware.

As a globally renowned third-party trading company deeply rooted in the industrial automation components sector, we consistently keep abreast of the latest technological iterations from leading international brands to ensure our inventory structure and procurement channels are aligned with the latest global market demands. With the increasing market penetration of the new SIMATIC S7-1200 G2 hardware and the growing demand for upgrades to existing factory production lines, choosing a stable, flexible, and responsive supply chain partner is crucial for companies to control costs, improve efficiency, and maintain technological leadership.

Contact Information:

Manager: Jim Pei

Email: sales6@amikon.cn

Whatsapp: +8618020776782

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