ODOT’s 100% Independent PLC: Empowering the Next Generation of Industrial Automation

Redefining the Core of Smart Manufacturing

In modern industrial manufacturing, the distributed control system (DCS) serves as the intelligent core — orchestrating production processes, monitoring equipment, and ensuring safe and efficient operation across sectors such as energy, transportation, and heavy industry.

However, for decades, China’s high-end DCS and large-scale Plc (Programmable Logic Controller) markets have relied heavily on foreign suppliers. Key hardware and software components have been dominated by international giants, limiting domestic innovation and raising concerns about supply chain security and technological sovereignty.

As smart manufacturing accelerates worldwide, achieving full-stack autonomy — independence across hardware, software, and industrial ecosystems — has become essential to drive long-term industrial resilience.

Market Dynamics: High Potential, High Barriers

China has become the world’s largest PLC market, yet large-scale PLCs remain dominated by international brands. In 2024, Siemens alone held nearly 40% of the market, with Siemens, Rockwell, and Schneider collectively exceeding 60%.

While domestic manufacturers have made strides in specific sectors, localization rates remain low, particularly in mission-critical industries such as power, petrochemicals, and metallurgy. The core challenge lies not only in hardware independence but, more critically, in software autonomy.

Many domestic PLCs now use locally made CPUs and modules, but still depend on imported components like FPGAs, power modules, and network chips. Even more challenging is the lack of fully independent software platforms — most local PLC systems are still based on foreign architectures such as CODESYS.

In short: hardware may be replaceable, but software remains the true bottleneck.

Odot’s Breakthrough: The D-Series Distributed Control System

In response to these challenges, ODOT Automation has launched the groundbreaking D-Series Distributed Control System (DCS), also known as the Dujiangyan Series. This system marks a major milestone in China’s journey toward a fully independent industrial automation ecosystem.

100% Hardware Localization

The D-Series is designed according to the highest industrial standards, ensuring complete hardware localization. Every critical component — from processors to communication modules — is domestically sourced. The system achieves world-class performance in electromagnetic interference resistance, reliability, and long-term stability.

100% Software Autonomy

At the software level, the D-Series features AIOSYS, ODOT’s fully self-developed industrial operating system compliant with IEC 61499 standards. AIOSYS delivers:

• Native IT/OT integration
  
  
• Hardware-software decoupling
  
  
• Event-driven architecture and load balancing
  
  
• True distributed control
  
  
• Support for IEC 61131-3 and web-based programming

Together, these advancements enable manufacturers to achieve secure, intelligent, and future-ready control across industrial applications.

DU03 PLC: The Heart of Distributed Intelligence

At the core of the D-Series lies DU03, a modular, high-performance PLC designed for medium to large-scale systems and advanced motion control. Key features include:

• Modular architecture with redundant backplane bus expansion
  
  
• Support for PROFINET, EtherCAT, and other major industrial protocols
  
  
• Multi-PLC distributed control collaboration
  
  
• Motion control with up to 128-axis synchronization
  
  
• Web-based programming and remote deployment
  
  
• Advanced IT/OT convergence capabilities

The DU03 line offers flexible configurations — including DU03L (16-axis), DU03G (32-axis), DU03P (64-axis), and DU03M (128-axis) — to meet the needs of different industrial scales.

Expanding the Ecosystem: Remote I/O Solutions

Complementing the DU03 PLC is ODOT’s versatile lineup of remote I/O modules, enabling flexible, distributed data collection and control across complex industrial environments.

Supporting major protocols such as PROFINET, EtherCAT, EtherNet/IP, Modbus TCP, and CC-Link IE Field Basic, ODOT’s I/O systems integrate seamlessly with both ODOT and third-party platforms. Proven reliability and adaptability have made them the trusted choice across industries including automotive, power, metallurgy, water treatment, and smart equipment.

Looking Ahead: Industrial Autonomy Accelerates

As China advances toward industrial autonomy, the localization of large-scale PLCs is entering a phase of rapid acceleration. By 2028, localization rates are expected to rise significantly, particularly in sectors where reliability and data sovereignty are critical.

With its 100% autonomous hardware and software architecture, the D-Series represents more than a product breakthrough — it is a symbol of confidence in China’s industrial innovation and engineering excellence.

With full-stack independence and global ambition, ODOT is redefining the standards for intelligent, secure, and sustainable industrial control systems.