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During the debugging process of PLC projects, any strange problems can be encountered, and signal interference is one of them. It is difficult to find the cause of the problem. Today we will share two cases, an example of frequency converter interference with PLC analog signals, and a solution to overcome such interference using signal isolation modules.

Example 1
Phenomenon explanation
The AO point in Siemens PLC sends a 4-20mA current control signal, which is output to the Siemens frequency converter, but cannot control the startup of the frequency converter.

Fault finding
1. Suspected analog output board issue, measure the 4-20mA output signal with a multimeter, and the signal is normal!
2. I began to suspect that there was a problem with the control signal input of the frequency converter. I replaced it with a frequency converter of the same model, but the problem still persists.
3. We used a handheld signal transmitter as a 4-20mA output signal source, outputting a standard current signal to the frequency converter. As a result, the frequency converter started, and we ruled out faults with the analog output board and frequency converter.
4. It can be inferred that the interference signal from the frequency converter is transmitted to the analog channel.
5. To verify, a signal isolation module TA3012 was installed in the 4-20mA output channel of the PLC analog signal. Input terminals 5 and 6 of TA3012 were connected to the analog output module, output terminals 1 and 2 were connected to the frequency converter, and terminals 3 and 4 were connected to an external 24VDC power supply. The frequency converter started normally.
6. Based on this, it can be concluded that the root cause of the problem lies in the interference of the frequency converter with the analog channel.

matters needing attention
In an automatic control system where PLC and frequency converter are used simultaneously, the following precautions should be emphasized:
1. The PLC power supply and power system power supply (frequency converter power supply) should be configured separately, and the PLC power supply should choose an isolation transformer.
2. The power line should be separated from the signal line as much as possible, and the signal line should be shielded.
3. Both analog signal input and analog signal output use signal isolation modules for analog channels.
4. Design software filtering in PLC programs.
5. Separate the design of signal ground and power ground.

Example 2
Recently, I saw an analysis and solution to the problem of analog interference, and in our practical application, we will encounter many similar problems. Let’s share with everyone: “There are 10 250KW motors in the workshop, loaded with high-pressure pumps. The frequency converter is connected to the PLC through DP using Schneider ATV71, and the PLC uses Siemens 300. The pressure transmitter is Siemens, and the analog signal from the transmitter to the PLC is 4-20mA, with a shielded wire input in the middle.”.
After debugging, everything runs normally for a week. After the manufacturer left, pump number 8 suddenly appeared when starting up, with a set pressure of 40 kilograms and an actual value of 70 kilograms. Set the actual pressure of 80 kilograms to 110 kilograms. At first, I suspected a sensor malfunction and replaced it with another pump. Everything was normal. Afterwards, the frequency converter was fully turned on, and similar problems occurred with pumps 3, 4, 5, 6, 7, 9, and 10. It is speculated that the pressure sensor is affected by frequency converter interference. The manufacturer suggests adding metal tube shielding. However, considering the difficulty of on-site construction (the control room is more than 30 meters away from the motor and all cables are laid in underground cable trenches).
And I believe that the harmonic interference of the frequency converter should be caused by fluctuations in pressure values, and it is rare to see interference causing a linear increase. At first, I suspected that there was a problem with the manufacturer’s program because the pressure value displayed on the display screen was always 40 kilograms, but the frequency converter was outputting 70 kilograms. The manufacturer disagrees with this viewpoint, stating that they absolutely use Siemens standard PID blocks.

I can’t figure it out after much contemplation. Accidentally discovered that the negative and shielding layers of the manufacturer’s sensor were simultaneously connected to the M of the PLC analog input terminal. Remove the shielding wire and connect it to the ground fault of the device to eliminate it. Speculation: A 2-wire sensor with a PLC providing 24V voltage on the positive pole and a 4-20mA current output on the negative pole. After the shielding wire is connected to the negative electrode, the induced electromotive force on the shielding wire generates a current that enters the PLC input terminal together, resulting in a superimposed current and a linear increase in pressure value.

After only 2 days of operation, the same situation occurred again, and even more serious was that one of the pressure sensors was removed and there was still 40 kilograms of pressure. After final inspection, it was found that the negative electrode of the PLC input side was stripped and elongated, causing a short circuit between them and causing signals from other channels to string out. I just remembered that when I first started debugging, the manufacturer asked me if the equipment floor and cabinet floor were not on the same floor. After grounding the shielding wire of the pressure sensor, the interference is particularly severe. None of them can be displayed. I didn’t think much and casually said, single ended grounding. Afterwards, they agreed. Now, thinking about it, it should be that the current output side of each sensor was connected together through shielded wires, causing a short circuit, and then the ground wire on the sensor side was removed. Due to the shielding wires not being connected together, the signal is normal.

Luntz’s new CEO

Dr. Marc Wucherer

First stop visit to China

On January 16, 2025, Dr. Marc Wucherer, the newly appointed CEO of Luntz, successfully completed his first trip to China as CEO. China is the first stop on its global tour, which demonstrates the strategic position of the Chinese market. During the intensive 3-day trip, Dr. Marc Wucherer had extensive and in-depth exchanges with clients, partners, and Lenz China employees. Dr. Marc Wucherer’s trip aims to comprehensively understand the Chinese market situation, delve into customer needs, and further explore opportunities and potential for cooperation.

Insight into customer needs and win-win challenges

During this trip to China, Dr. Marc Wucherer deeply practiced the concept of “customer first”, and through in-depth face-to-face communication, gained insight into customer needs, laying a solid foundation for future cooperation and development.

On January 14th and 16th, Dr. Marc Wucherer, accompanied by Mr. Xie Weidong, the President of Luntz East Asia, and the leadership team, visited two important clients who have been cooperating globally for many years. Both sides discussed how to jointly respond to the Chinese market, strengthen local cooperation, and further explore opportunities and potential for cooperation.

During the discussion, both Lenz and the client realized that the Chinese market has a huge and personalized market demand. Through close cooperation, they can better respond to the needs of end-users quickly, work together to cope with changes and challenges in the local market, and stand out in the fiercely competitive market environment.

Putting Chinese customers first and implementing actions

On January 15th, Dr. Marc Wucherer held an employee meeting at the East Asia headquarters Shanghai Lingang factory, sharing his personal situation, career, and the challenges currently faced by Lenz China employees. By 2032, Lenz will celebrate his 85th birthday. In the next 6 to 7 years, through our series of positive and effective actions, Lenz will be able to radiate new vitality and energy at the age of 85, continuing to write a brilliant chapter with a new attitude.

During this trip, Dr. Marc Wucherer made China the first stop of his global visit, fully demonstrating Lenz’s high regard for the Chinese market and his goal of deepening the Chinese market and expanding market share. Dr. Marc Wucherer stated that the Chinese market is very large and highly competitive, and achieving this goal requires collaboration and action from every Lenz person, including global teams, in order to succeed. He has confidence in the Chinese team and promises to provide full support to China.

Subsequently, Dr. Marc Wucherer, accompanied by Mr. Xie Weidong, President of Luntz East Asia, and the leadership team, visited the Lingang factory and inspected the newly completed localized production line last year. Last year, following the successful localization of i550 size 6 frequency converters and i700 size 1-2 frequency converters, Lenz China also achieved localized production of i510/i550 size 1-3 frequency converters. We have been implementing a localization strategy all the way from electromechanical products to electronic products. This not only greatly shortens product delivery time, but also makes our products more in line with the needs of the Chinese market.

Dr. Marc Wucherer emphasized that we need to continue accelerating the localization process of our products, especially the localization of core components.

Joining hands with partners to deepen cooperation and create excellence

On January 16th, Dr. Marc Wucherer and his team visited the partners of the new project in Lenz, aiming to understand the latest progress of the project and promote its smooth implementation and sustainable development. The general manager of the company led its core team to receive this visit. After the company introduction session, Dr. Marc Wucherer visited the factory, delved into the production line to understand the production process, and then reviewed the quality management system with the project team. Dr. Marc Wucherer pointed out that with the successful implementation of the Lenz localization project on this production line, we will increase production in the future, further deepen our cooperation, and jointly respond to the demands and challenges of the Chinese market.

This CEO’s trip to China demonstrated the concept of “customer first” through practical actions. By delving into the front lines of customers, listening to their voices, and understanding their pain points, Lenz will further optimize its products and services to enhance customer satisfaction. We believe that under the leadership of Dr. Marc Wucherer, the global team at Lenz will collaborate and bring more value to our customers, driving Lenz towards new heights of glory.

The real-time Linux system plays a crucial role in low altitude video transmission due to its high certainty and low latency characteristics. The low altitude economy covers scenarios such as drone logistics, agricultural monitoring, and low altitude traffic management, which have extremely high requirements for real-time, reliable, and efficient video transmission. By optimizing the video transmission system through real-time Linux system, the intelligence and automation level of low altitude economy can be significantly improved.

1. Understand the role of real-time Linux system in video transmission

1.1 Low latency guarantee

We hope that the real-time Linux system can ensure that every step of video capture, encoding, transmission, and decoding can be completed within a certain time by providing real-time scheduling. This low latency characteristic is the foundation for the successful application of video transmission in low altitude economy.

1.2 Task Priority Control

Hope to obtain real-time Linux system permission to set priority for video transmission tasks. For example, video data collection and encoding tasks can be set as high priority to ensure timely video processing even when the system load is high.

1.3 Integrated support for hardware acceleration

We hope that real-time Linux systems can efficiently utilize hardware resources, such as RK3588’s MPP hardware decoding module, to accelerate video encoding and decoding, reduce processing latency and CPU load.

2. Technical process of video transmission

2.1 Video Collection

Camera driver optimization: To achieve real-time Linux system, it is necessary to optimize the camera driver (such as V4L2 framework) to support high frame rate acquisition and low latency transmission.

Hardware interface: Common interfaces such as MIPI and USB require real-time optimization to ensure the transmission rate of collected data.

2.2 Video Encoding

Hardware encoding acceleration: Utilizing the H.264/H.265 encoding function of RK3588, the hardware acceleration module can be directly controlled by the desired real-time Linux system to achieve efficient encoding.

Zero copy optimization: Directly transfer the collected raw video data to the hardware encoder through techniques such as DMA, avoiding delays caused by multiple copies.

2.3 Wireless Transmission

Communication protocol selection

Use low latency protocols such as RTP (Real Time Transport Protocol) or SRT (Secure Reliable Transport) to achieve efficient video data transmission in the desired real-time Linux system environment.

For drone formations, real-time distribution of multi node video streams can be achieved by combining MQTT or DDS protocols.

network optimization

Hope to obtain real-time Linux system network stack support for kernel fast path (eBPF/XDP), which can optimize the latency and throughput performance of video streams in network transmission.

In low altitude scenarios, using Wi Fi 6 or 4G/5G connections, real-time Linux system is expected to provide traffic priority management to ensure that video streams are not preempted by low priority tasks.

2.4 Video Decoding and Display

Hardware decoding: Using the RK3588 hardware decoder to quickly decode video streams, real-time Linux system task scheduling is expected to ensure that the decoder always runs at high priority.

Real time display optimization

Use open-source graphics stacks such as Wayland or direct access to frame buffers for low latency video rendering.

Optimize buffer management to reduce frame loss and latency.

3. Request for real-time Linux system optimization technology details

3.1 Kernel Optimization

Complete preemption: Patch the Linux kernel to support complete preemption and reduce kernel latency.

Interrupt management: We hope to obtain real-time Linux system permission to set interrupt priority and ensure that video transmission related interrupts are responded to with the lowest delay.

Timer accuracy improvement: Improve the accuracy of the kernel timer to meet the time synchronization requirements of video streams.

3.2 File System Optimization

For video caching data, you can choose a file system with better real-time performance (such as EXT4 or XFS) and enable delay optimization mode.

3.3 Network Stack Adjustment

Adjust the buffer size in the TCP/IP stack to reduce latency.

Dynamically optimize network packet processing paths using eBPF scripts.

3.4 Multi threaded optimization

Use real-time threads to separate video capture, encoding, transmission, and decoding tasks.

Set real-time thread priority through the pthread library to ensure that critical tasks receive sufficient CPU time slices.

4. Application scenarios and case analysis

4.1 Real time video monitoring in drone logistics

Requirement: Real time transmission of video data for navigation monitoring and ground station interaction during the execution of logistics distribution tasks by drones.

realization:

Use Wanghuo real-time Linux system to schedule camera acquisition tasks.

Use H.265 encoding and RTP protocol to transmit videos to ground stations.

The ground station decodes and displays real-time video based on the desired real-time Linux system.

4.2 Low altitude agricultural monitoring

Requirement: Real time transmission of farmland video data by agricultural drones for disease and pest monitoring and fertilization decision-making.

realization:

Running on a drone, the real-time Linux system controls the camera to capture ultra high definition videos.

Use Wi Fi 6 to transmit high-resolution video streams to edge computing nodes.

Real time decoding and analysis of video data by edge nodes.

4.3 Low altitude security monitoring

Requirement: Real time video surveillance in low altitude areas of cities to prevent illegal intrusion.

realization:

The camera collects data and transmits it to an edge server based on the real-time Linux system.

Use SRT protocol to ensure the security and low latency of the video during transmission.

5. Challenges and Future Directions

5.1 Challenge

Real time guarantee: Faced with high bandwidth requirements and complex scenarios, it is difficult to achieve latency optimization for real-time Linux systems.

Security issue: Data in video transmission may be subject to malicious attacks, and encryption and authentication mechanisms need to be strengthened.

Multi task scheduling conflict: On resource constrained embedded platforms, an excessive increase in high priority tasks may affect system stability.

5.2 Future direction

The combination of 5G and Wanghuo real-time Linux system: utilizing the ultra-low latency characteristics of 5G to further improve video transmission performance.

Edge computing collaboration: optimize the storage and analysis of low altitude video streams by observing the collaborative processing of real-time linux system edge nodes and the cloud.

AI optimized transmission efficiency: Combining the desired real-time Linux system with AI algorithms, dynamically adjust video resolution and frame rate to adapt to network conditions.

6. Conclusion

We hope that the real-time Linux system can become an ideal foundation platform for low altitude economic video transmission by providing low latency and high certainty. By combining hardware acceleration, optimizing network stack, and real-time scheduling mechanism, it is expected that real-time Linux systems will demonstrate great potential in scenarios such as drone logistics, agricultural monitoring, and security monitoring. With the development of technology, real-time Linux systems are expected to play a more important role in the low altitude economy, driving the industry towards new heights of intelligence and automation.

Currently, the healthcare industry is facing unprecedented challenges, and the entire industry is under constant cost pressure. Internally, launching a new type of medical device product often takes three to seven years, sometimes even longer; A new drug takes an average of 12 years from development to final approval. Therefore, while ensuring reliability and quality standards, it is crucial to be able to advance faster and more efficiently.

In my many years of experience leading healthcare companies, I have always been committed to exploring effective ways to reduce risks and redirect resources towards product innovation. One important way is to outsource cooperation with trusted partners. In my opinion, outsourcing cooperation in the field of healthcare is not just a strategy; It is also the key to changing the rules of the game. Outsourcing can help achieve a wide range of strategic goals, including leveraging the advantages of external manufacturing partners to improve operational efficiency and drive significant transformation of enterprises – often referred to as’ network optimization ‘.

Network optimization is gradually becoming an emerging trend in the field of healthcare, representing enterprises refocusing resources on core businesses through strategic outsourcing.

When properly executed, network optimization can drive enterprises to completely reform their network structure, effectively reduce risks and focus on core business areas by optimizing resource allocation, while significantly reducing capital expenditures during this transformation process.

Recently, Technavio released a report predicting that from 2024 to 2028, the medical device manufacturing outsourcing market will grow at a compound annual growth rate of 10.9% to $50.44 billion. This indicates that numerous healthcare and pharmaceutical companies see an opportunity to reshape their existing manufacturing models. A well executed outsourcing model can bring multiple benefits, including improved operational efficiency, reduced supply chain risks, and the ability of internal teams to focus on core competencies and innovation. By working together with suitable partners, companies can more effectively utilize funds and resources to manage production line investments, ensure strict compliance with regulatory and quality standards, and address various complex challenges during the transfer of production lines and factories, thereby effectively alleviating the company’s related concerns.

Concentrate resources and strengthen expertise

In 2023, the US Food and Drug Administration (FDA) approved more new medical technologies than any previous year, creating a more competitive environment for healthcare and pharmaceutical companies to bring innovative solutions to market. At the same time, rising cost pressures, increased profit demands, and global supply chain uncertainty collectively require companies to seek a way to release resources in order to focus on their areas of expertise.

By partnering with professional manufacturing outsourcing partners, healthcare and pharmaceutical companies can fully leverage their vertical integration capabilities and expertise in complex production process management and supply chain configuration. In this way, companies can concentrate their internal resources on core competencies such as product innovation and research and development.

At Weichuangli, we are committed to helping customers optimize the entire product lifecycle and achieve sustainable development goals. From ensuring the manufacturability of product design, to effectively expanding production scale, to providing reverse logistics and circular economy services – while sharing advanced manufacturing expertise and best practices from other industries.

For example, we used advanced analog technology to create a digital twin for the production line of a type II diabetes product, helping to reduce production risks and ensure the continuity of production. We also assist our clients in addressing complex supply chain management challenges, effectively reducing operational risks while allowing them to focus more on the development of other core areas. With a vast network of over 16000 suppliers, we work closely with leading companies in the diagnostic industry, ensuring the stable operation of our supply chain even in the face of semiconductor supply shortages during the COVID-19 pandemic. During this difficult period, our customers have demonstrated extraordinary resilience by continuously providing sensors to millions of patients who rely on their products.

Quality first

Although companies fully recognize the wisdom of concentrating internal resources on product innovation, they may still be skeptical about outsourcing due to the healthcare industry’s requirements for high quality standards and strict regulation. The same Technavio report emphasizes that although outsourcing medical device production can bring opportunities for companies to access the latest technology and advanced equipment, it also comes with a series of challenges. For example, medical professionals have extremely strict requirements for product quality and must strictly comply with relevant regulatory requirements

Evaluating manufacturing partners to ensure they meet regulatory and quality requirements is crucial.

At Weichuangli, we provide an excellent quality management system based on decades of deep cooperation experience with healthcare and pharmaceutical companies, ensuring that customers can smoothly meet the strict compliance requirements of Class I, II, and III medical products. As regulatory expectations continue to evolve, we are committed to closely collaborating with customers throughout the entire product lifecycle, from early conceptual design to human factors engineering (HFE), to providing highly automated production and end-of-life solutions.

Working with manufacturing partners like Weichuangli and leveraging our 14 FDA certified and 21 ISO 13485:2016 certified factories will help healthcare and pharmaceutical companies easily achieve the highest quality and compliance standards for regulated medical products.

Reshaping the internal production model

Even though end-to-end value chains can bring significant benefits, transferring production from internal to outsourcing partners can still be daunting or risky. However, medical and pharmaceutical companies should first consider the desired outcomes before formulating their strategies.

Whether seeking to be close to the end market, integrating multiple production bases, or aiming to reduce overall operational risks, enterprises have diverse choices. With strong vertical integration capabilities and global layout, Weichuangli provides professional skills, rich experience, and complete infrastructure for clients in the healthcare industry. As a partner, it can help them achieve their outsourcing strategic goals.

For example, we worked closely with a client focused on diagnostic monitoring to reduce the overall risk of their supply chain. By integrating five manufacturing bases scattered across multiple regions into one Weichuangli manufacturing center in North America, we have helped our customers reduce redundant processes, improve operational efficiency, thereby saving costs and reducing risks.

The Weichuangli production base we have chosen, with its professional knowledge and experience in the medical manufacturing field, as well as a high-quality team, has successfully achieved a fast and smooth transition, ensuring the normal operation of customer business.

Strategic cooperation for long-term development

The landscape of the healthcare industry will become increasingly complex, driven by rapid technological advancements, a growing population of chronic disease patients, and an estimated 1.5 billion people aged 65 and above worldwide by 2050, creating new market opportunities. In order to stay ahead of future challenges and seize unprecedented opportunities, healthcare and pharmaceutical companies must establish strategic partnerships with outsourcing partners. These outsourcing partners can not only help them optimize their own networks, but also provide cross industry expertise, knowledge, and experience in medical product design, development, and manufacturing.

With decades of experience in the healthcare industry, I have personally experienced the importance of strategic outsourcing in maintaining a competitive advantage for businesses. By cleverly utilizing the capital advantages, technological investments, and various resources of outsourcing partners, enterprises can concentrate on core innovation activities, while achieving more flexible operations and effectively avoiding risks. In this rapidly changing industry, it is particularly important to continuously examine and innovate existing models in order to better meet the ever-changing needs of healthcare providers and patients.

In industries such as OEM equipment manufacturing, high load motors are ubiquitous. How to meet the increasingly complex requirements of motor control and protection, and ensure that equipment does not malfunction due to overload or short circuit, has become an important demand for enterprises in terms of safety production.

Eaton focuses on the daily production scenarios of OEM manufacturing and continuously expands its product line of motor protection. The newly launched PKZMX motor protection circuit breaker can provide both short-circuit protection and overload protection. This series of products has the advantages of wide current coverage, durability, and rich accessories, meeting the diverse needs of mechanical equipment protection and industrial application scenarios, and helping the industry move towards a safe and efficient new future.

Wide current coverage

Adapt to more application scenarios

The Eaton PKZMX motor protection circuit breaker has a wide current coverage range of 0.1-80A, a maximum rated voltage of 690V, and a breaking capacity of up to 100kA. The product has CCC, CE, and CB certifications and can provide protection for motor equipment of different powers in various industries. The tripping threshold of this product during short circuit is an average of 13 times In, effectively preventing damage to the motor caused by excessive load or short circuit current, ensuring that the motor can operate stably under high load for a long time.

Longevity and resilience

Durable and worry free

The Eaton PKZMX motor protection circuit breaker has a mechanical and electrical lifespan of up to 100000 cycles, infusing safety and reliability into the user’s production process. In addition, the product complies with the IEC60068 standard and has strong seismic and impact resistance. Combined with the screw clamped terminal connection method, it can resist harsh environments and extend its service life. Users can also manually operate the opening and closing of the device using buttons, with a control frequency of up to 25 times per hour, to meet equipment maintenance, debugging, and other needs.

Rich and diverse attachments

Flexible expansion through on-demand combination

Eaton has equipped PKZMX motor protection circuit breakers with complete accessories. Users can configure accessories such as auxiliary contacts, alarm contacts, undervoltage and shunt release devices, waterproof boxes, and emergency stop buttons as needed to achieve functions such as line overload and short circuit protection, undervoltage protection, phase loss protection, waterproof protection, and fault alarm. The contactor connector can easily be combined with the contactor for installation, further improving the reliability of the motor electrical system.

The high-quality development of industries such as industry and machinery manufacturing is closely related to the continuous operation of power supply and distribution equipment. Eaton will maintain its innovative ability to keep up with the times, continuously upgrade its products, help the industry solve the pain points of electrification applications, and safeguard electrical safety.

Regarding Eaton:

Eaton Corporation is an intelligent power management company dedicated to protecting the environment and improving the quality of human life. Our products serve the data center, utility, industrial, commercial, machinery manufacturing, residential, aerospace, and vehicle markets. Whether now or in the future, we promise to operate legitimately, sustainably, and help customers better manage their power. With the help of global trends in electrification and digitization, we are accelerating the world’s transition to renewable energy, helping customers solve their most pressing power management challenges, and creating a more sustainable society for humanity today and in the future.

Eaton Corporation was founded in 1911 and has been listed on the New York Stock Exchange for over a century. In 2023, Eaton’s sales reached $23.2 billion, with operations in over 160 countries. Eaton entered the Chinese market in 1993 and rapidly developed its business in China thereafter. In 2004, the company’s Asia Pacific headquarters moved from Hong Kong to Shanghai. In China, Eaton Corporation currently has approximately 8000 employees and 19 manufacturing bases.

Whether it is machine self arranged maintenance appointments or digital twin simulation of production line processes, it indicates that the integration of IT (information technology) and OT (operational technology) is bringing new potential to industrial environments.

Through the integration of IT and OT, real-time data generated by operational technology systems such as PLC and SCADA can be utilized to improve business operations. For example, by evaluating these data, companies can better understand their processes and know where and how to optimize workflows to improve efficiency and profits.

IT-OT integration brings new opportunities to factory workshops

Although there are many benefits to working together in IT and OT, this article only takes a few examples of the results you can experience.

By monitoring and controlling all devices, their usage time and energy consumption, better energy management can be achieved.

Quickly respond to operational failures through remote monitoring, access, control, and verification.

Predictive maintenance allows machines to signal when service is needed and automatically order spare parts to prevent downtime.

Demand driven manufacturing supports scalable and flexible production to meet constantly changing customer demands and material bottlenecks.

Event simulation of process adjustment through digital twins, where digital twins serve as virtual models of infrastructure, production lines, etc.

Automatically exchange information between endpoints such as machines, units, or vehicles through machine to machine communication.

When operational technology and IT are integrated, new security issues arise

The merger of IT and OT has significant advantages, but it also brings potential drawbacks, mainly in terms of security.

In the past, operational technology systems have operated in isolation to protect critical business processes (this separation is often referred to as an “air gap”). However, with the interconnection of workflows, the boundary between IT and OT is becoming blurred. This may make operational technology a target of cyber attacks. The method is as follows.

IT-OT interface vulnerability

The interface between OT and IT may become a vulnerability and a potential entry point for attackers. Network attacks on these interfaces may result in operational downtime and significant financial losses.

The OT system has adopted conservative security measures

Compared to IT, operational technology requires additional layers of protection to ensure the safety of operators and the workplace. Although the lack of functional security in physical systems can lead to production downtime, there may also be other reasons. For example, the erroneous behavior of on-site machines may endanger employees and lead to downtime. Therefore, OT systems typically adopt conservative security measures. Network attacks can clearly utilize this method to disrupt operations.

Lack of safety standards

Information and data security are additional security issues that need to be considered. OT systems typically do not have the same security standards as IT. Operational techniques are usually more outdated than information technology; Hardware design can sustain operation for decades. The long lifecycle of systems, machines, and other equipment often means outdated security measures, including:

Outdated software and operating systems

Short or infrequently changed passwords

Old protocols supporting data communication

No data encryption

With the integration of IT-OT, data management has emerged. However, operational technology does not always provide data encryption and generates large amounts of data for real-time use. Network attacks can damage data integrity through manipulation, data theft, espionage activities, and even data destruction.

4 important considerations for improving the safety of IT-OT

Integrating OT and IT requires a comprehensive and unified network security strategy to meet the specific needs of both systems, and Belden can support you in completing the task.

Belden and its sub brands (including macmon) can help you smoothly complete IT-OT integration, allowing you to experience the benefits it provides while minimizing vulnerabilities to OT security and systems.

To help you improve the safety of your operational skills, our team has shared four suggestions.

01 Implement network access control

If the OT system is interconnected and remotely accessible, network access control is crucial for ensuring security. All clients and endpoints must undergo authentication and authorization.

02 Establish network view

In order to make complex systems visible, a complete network view is required. This ensures continuous monitoring of the entire network with heterogeneous system environments.

Please make sure to clearly identify all communication participants and assets, and verify their security status. Despite increasing complexity, this is the only way to achieve transparency in network traffic. All data streams should be visible in both real-time and historical views.

03 Segmented isolation through network

To ensure that machine failures do not affect the entire operation, network segmentation (VLAN management) can be used to form virtual sub parts. This security measure can isolate the affected area from the rest of the network and make data flow controllable.

04 Determine the priority of patch management

It is crucial to regularly update software and protocols in order to reliably protect interconnected OT systems. Specifically, it means converting old machine protocols into secure protocol standards and industry compatible firewalls to verify the importance of operational technology communication protocols.

The electrical design requirements for industrial control systems are very strict, requiring equipment to ensure durability and reliability under the most challenging conditions, in order to extend its service life as much as possible and reduce downtime. At the same time, in certain special application scenarios, even in harsh working environments, the control system should be foolproof and accurately complete control tasks, such as in functional safety critical applications, such as highly robotic work environments, power plants, or air transportation. In these environments, if problems occur, they may pose serious risks to operators, corporate property, and even the entire ecosystem.

Functional safety is an advanced technical discipline in the field of industrial automation, and has been widely recognized by international certification bodies (mainly IEC 61508). However, in this article, we will not analyze its complex theoretical form, but focus on interesting technical challenges and specific application scenarios, which we need to pay close attention to in the design process. We will use a dual channel functional safety digital I/O evaluation board (STEVAL-FSM01M1) as a reference to analyze the architecture and principles of a functional safety I/O system. We will also point out some innovative features embedded on the board. This article discusses the technical challenges that every automation engineer should be aware of before starting the next project.

Functional safety and redundancy

The basic components of a functional safety system include the concept of system redundancy and diagnostic functions (monitoring the integrity of the system during operation). In the world of functional safety, the safety state is usually considered as the device being in a passive state (disabled, switch off, logic in zero state, etc.). Therefore, the basic principle of functional safety is that the control system can enter this safe state under any conditions (including possible faults). The functional block diagram of a secure digital I/O module is shown in Figure 1.

This module has two input channels (IN1 and IN2, redundant with each other) and two output channels (OUT1 and OUT2, redundant with each other). In addition, each PNP type output channel is actually connected in series with an intelligent high side switch (IPS) and a controlled P-channel power MOSFET (STL42P6LLF6). Most importantly, in order to eliminate cross channel consistency that may occur in the event of a fault, the control signal for each output channel is conducted through an independent digital isolator (STISO621).

Digital input section

The digital input function is implemented in the I/O module to access industrial sensor signals, convert 0V/24V process signals into lower voltage logic levels, and be recognized by microcontrollers or ASICs through digital isolators. The space inside the casing of the IO module is relatively small, and the internal circuit board needs to provide stable performance under EMC interference, while minimizing power consumption as much as possible to improve efficiency and reliability. Under such requirements, traditional solutions built with discrete components are difficult to implement, which inevitably has a negative impact on design work.

A faster and more convenient solution is to use an industry recognized solution – a dual channel digital input current limiter (CLT03-2Q3), which accommodates two independent input channels in a single ultra compact package chip. In addition to the digital input function, CLT03 also provides other useful features specifically designed for functional safety, such as the ability to function as an input signal current sensor without additional power supply, or a unique diagnostic mechanism that can monitor its working status during operation. Each channel inside this chip is equipped with a test pulse (TP) generator, which can superimpose heartbeat pulses in the output signal path when the connected input signal is at a high level (24V).

On the STEVAL-FSM01M1 evaluation board, a small signal transistor can be used to actively control this function during operation, as shown in waveform acquisition (Figure 4). The pulse width (and frequency) can be adjusted within a wide range based on the test pulse capacitance (CTP). By using this mechanism, the microcontroller can dynamically monitor whether the input front-end IC is working properly. Therefore, this unique feature provides an additional option to expand system security and diagnostic coverage.

Digital output section

Overvoltage and reverse polarity protection

Near the 24V power connector of the module, there is a bidirectional transient voltage suppressor (TVS1) directly connected to the power supply, in parallel with capacitor C1, for power protection. In fact, the PCB path length connecting the transient voltage suppressor must be as short as possible to minimize parasitic inductance. Otherwise, it may cause voltage transients during EMC overstress, exposing the circuit to voltages significantly higher than its clamp rating. The size of TVS1 should be as small as possible, and its clamping voltage should not exceed 36V. At the same time, it needs to absorb a large amount of energy when absorbing EMC surge currents. These requirements are met on the reference board through a transient voltage suppressor (SMC30J36CA) with a clamping voltage of 36V and a peak power of up to 3000 W (10/1000 μ s) and 40 kW (8/20 μ s pulse in accordance with IEC 61000-4-5). The circuit design behind the overvoltage protection section is used to prevent the reverse polarity of the power supply voltage. In practice, such errors may occur frequently due to wiring errors, but negative overvoltage pulses are also a mandatory part of typical EMC testing. The reverse current blocking circuit is based on a passive biased 60V P-channel transistor Q1 (STL42P6LLF6).

Inductive load demagnetization circuit

Many actuators have inductive characteristics (such as solenoid valves, valves, relays, etc.). This means that when it is turned off, the magnetic field energy of the load will be converted into electrical energy, which will be absorbed by the digital output circuit. For this reason, the IPS16xHF series intelligent high side switch has a fast demagnetization circuit inside, which maintains a certain voltage drop relative to VCC instead of 0V when the output is turned off. When using IPS16xHF, the voltage drop value is VDEMAG ≈ 70V

Sometimes, when optimizing the demagnetization energy of high inductive loads, a convenient approach is to achieve demagnetization through an external transient voltage suppressor connected between the output and ground. The reason for grounding connection is that transient voltage suppressors can be considered as short circuits before permanent breakdown. In this way, the safety principle of maintaining system passivation in the event of a malfunction is upheld. The selection of external output transient voltage suppressors should be designed so that their performance can completely replace the demagnetization performance integrated inside high side switches:

VTVS,CL,max < |VCC,max – VDEMAG,min |

Among them, VTVS, CL, max are the maximum clamping voltages of external transient voltage suppressors,

VCC, max is the maximum allowable power supply voltage,

VDEMAG, min is the minimum demagnetization voltage of the high side switch (specified in the data sheet).

Here, we need to further recognize that the clamping voltage of transient voltage suppressors fluctuates with temperature, and components with a certain clamping margin must be selected. On the evaluation board, the demagnetization transient voltage suppressor (SM6T33CA) meets these requirements.

diagnosis

The correct operation of the continuous monitoring system is a critical component of safe I/O. There are several mechanisms available on this evaluation board for this purpose. Firstly, IPS has its own diagnostic function, depending on its configuration, which alerts the microcontroller in case of overload to display overcurrent or chip overheating shutdown. There is also voltage monitoring for the power supply and output feedback on each output channel. This part of the circuit is implemented by a combination of voltage dividers R6 and R7 connected in series with protective diode D3, as shown in Figure 5. This is used to protect the subsequent A/D converter (ADC120) from negative overvoltage, such as during EMC interference or demagnetization. These diagnostic circuits monitor the integrity and operating conditions of the system in real-time.

Overcurrent and short circuit protection

In addition to controlling the output, the intelligent high edge switch (IPS) also provides various protection functions, such as preventing overcurrent and overheating protection. In the event of an output short circuit or any other overload that causes overcurrent, IPS limits its output current to a predetermined level ILIM (typical value on IPS1611HF is 1.2 A, or typical value on IPS160HF is 3.3 A).

During the current limitation period, the power switch operates in linear mode, which leads to an increase in power dissipation. Once the internal temperature of the IC reaches about 170 º C, the integrated thermal shutdown protection inside the chip will be triggered, automatically disabling the output for partial cooling with a hysteresis of 15 º C. This protective thermal shutdown is triggered by the diagnostic pin of the IC. The current shape is displayed in the waveform acquisition on the left side of Figure 7.

The IPS1600HF and IPS161HF chips provide an additional current protection mechanism called Cut off, which allows for minimizing power dissipation in case of overload. In this mode, IPS periodically activates the output and maintains it for a preset period of time, then shuts it off to prevent overheating. The duration of the cut-off is determined by the external capacitor. This allows for a reduction in the power consumption and heat of the chip, as we can clearly see when comparing the current waveforms (green) in two operating modes in Figure 7. The left image shows the inactive Cut off function, while the right image shows the activated Cut off function. This is particularly important in high-density output modules with multiple channels and limited internal power budget. It should be noted that after the Cut off is activated, it may not be able to drive loads with high starting currents (such as capacitive loads and lamps). In this case, the Cut off function may trigger protection before the load is fully charged. Considering this, the cut-off protection time or cut-off function should be set or disabled according to the actual application conditions.

This active cut-off control function can be flexibly set on the evaluation board (STEVAL-FSM01M1). Figure 9 illustrates the so-called ‘reactive cut off’, where the cut off function is disabled by default to allow for smooth charging of capacitive loads; But it also ultimately serves as a timely intervention and protection against thermal shutdown events in the event of long-term overload or malfunction.

summary

Industrial safety applies to all types of applications and industries, including automated manufacturing, transportation, smart buildings, or maritime and aviation systems. It is crucial to ensure that the safety of humans, equipment, and even our environment complies with applicable industrial safety standards.

At Yifa Semiconductor, our long-term engineering expertise in system design and rich experience in safety certification processes enable us to provide hardware designers with not only the most advanced integrated circuits, but also accurate knowledge and technical support.

In this white paper, we discuss the design of digital I/O systems for functional safety automation. After examining the structure of the secure digital I/O module, we explored specific design aspects of its electrical implementation using the example of the secure dual channel digital I/O evaluation board (STEVAL-FSM01M1). The robustness and reliability of the devices used are not only guaranteed through thorough validation in our laboratory, but also proven daily through 24/7 uninterrupted operation of countless industrial systems worldwide. At the same time, the devices used are rigorously tested and validated, providing reliability reports that can be used for FMEDA calculations required for functional safety certification.

The Beijing International Hydrogen Energy Exhibition (HEIE) has established a wide international influence, ranking among the world’s three major hydrogen energy exhibitions, becoming a benchmark for the development of China’s hydrogen energy industry, a touchstone for the development of Chinese hydrogen energy enterprises, and a witness platform for hydrogen energy applications in various industries of Chinese society. The exhibition will provide the most powerful proof for the development of the hydrogen energy industry and energy transformation and upgrading in the local area by building an important platform for exhibition, exchange and cooperation in the field of hydrogen energy. It will also provide the most effective guarantee for enterprises to promote their brands and expand their trading scope, and become a trading platform for hydrogen energy enterprises to go abroad and go global.

The exhibition will be held from March 26th to 28th, 2025, at the same location as the Beijing Petroleum Exhibition (CIPPE) supported by the Ministry of Commerce, at the China International Exhibition Center (New Hall) in Beijing.

Participating in HEIE Beijing International Hydrogen Energy Exhibition can bring various practical benefits to enterprises:

1、 Brand Promotion and Market Expansion

-Increased brand exposure

On the professional platform of HEIE Hydrogen Energy Exhibition, companies have the opportunity to showcase their brand image to 170000 on-site professional visitors, potential customers, industry media, and partners. Through unique booth design, distribution of promotional materials, and on-site explanations, we aim to enhance the brand’s visibility in the hydrogen energy field and quickly establish brand awareness within the industry.

-Integrate a powerful media matrix

Central level media, national level websites, financial media, information disclosure media designated by the China Securities Regulatory Commission, portal websites, local media, and new media platforms

Authoritative Report | Mainstream Communication

The organizing committee will organize nine media clusters, with over a thousand media outlets providing comprehensive coverage. The domestic media publicity matrix covers various fields such as central level media, national level websites, financial media, information disclosure media designated by the China Securities Regulatory Commission, portal websites, local media, and new media platforms. Central level media such as People’s Daily and Xinhua News Agency will provide in-depth coverage of the HEIE Hydrogen Energy Exhibition with their authority and influence; National level websites such as People’s Daily Online and Xinhua News Agency will showcase the exciting moments of HEIE Hydrogen Energy Exhibition exhibitors to the world through various forms such as graphics, videos, etc; Economic reference newspapers and other financial media will interpret the market prospects and investment value of the hydrogen energy industry from a professional perspective; Portal websites such as Sina News and Tencent News, and new media platforms such as WeChat, Weibo and Tiktok will continue to heat up HEIE Hydrogen Energy Exhibition and exhibitors with their extensive user base and strong communication power.

-Contact potential customers and partners

The HEIE Hydrogen Energy Exhibition brought together 2000 key central state-owned enterprises, leading enterprises, Fortune 500 companies, listed companies, high-tech enterprises, and specialized and innovative enterprises. Numerous companies will set up multiple new technology and product launches on site, with a concentrated launch event featuring nearly 10000 projects and over a thousand new achievements. Various enterprises and professionals from upstream and downstream of the industrial chain gather together. Enterprises can directly communicate face-to-face with potential customers, understand their needs, and demonstrate how their products or services meet these needs. At the same time, it also provides excellent opportunities for enterprises to find suppliers, distributors, strategic partners, etc. For example, hydrogen fuel cell companies can establish contacts with automobile manufacturers and hydrogen refueling station operators at exhibitions, explore sales channels, and lay the foundation for the large-scale application of their products.

2、 Technical Exchange and Innovation

-Get the latest technological updates in the industry

During the exhibition, numerous companies will showcase their latest technological achievements, and various technical seminars and forums will also be held. Enterprises participating in exhibitions can timely understand the latest technological progress in various aspects of the hydrogen energy industry, such as hydrogen production, hydrogen storage, and fuel cells.

-Promote industry university research cooperation

Universities and research institutions are also important participants in the HEIE Hydrogen Energy Exhibition. Nearly a hundred universities and research institutions attended the HEIE Hydrogen Energy Exhibition in previous years. Enterprises can take advantage of this opportunity to have in-depth exchanges with research teams and carry out industry university research cooperation projects. This helps companies overcome technological challenges, accelerate technological innovation, and product upgrades by leveraging external research resources.

3、 Market Insights and Competitive Analysis

-Understand market demand and trends

Through communication with customers, industry experts, and other enterprises, companies can better grasp the changes in demand and development trends of the hydrogen energy market. For example, companies can learn about the market’s expectations for the range and refueling time of hydrogen fuel cell vehicles at exhibitions, and adjust their product development and marketing strategies accordingly.

-Analyze competitors

At the exhibition, competitors’ products, technologies, and market strategies can be directly observed. Enterprises can compare their own strengths and weaknesses with their competitors and adjust their competitive strategies accordingly.

Taking “hydrogen” as the wing and sailing towards “green”, the 2025HEIE Hydrogen Energy Exhibition empowers the high-quality development of the “production, storage, transportation, and utilization” hydrogen energy industry chain. Sincerely invite all relevant parties to witness the successful hosting of this grand event on site. A series of new technologies, products, and applications are officially released and showcased globally here. Welcome to participate in exhibitions, visits, and conferences at that time!

Walking into the location of the Al Shubah Photovoltaic Power Station project in Jeddah, Mecca Province, Saudi Arabia, rows of photovoltaic solar panels are neatly arranged. Looking around, the ripples shimmer like rushing streams, bringing vitality to this place. In October 2024, the Saudi Arabia Al Shubah 2.6GW photovoltaic power station project ASB2 area, which was contracted and constructed by China Energy Engineering Corporation, successfully completed the reverse power transmission of 2GW and connected to the grid for the first time. This marks the official entry into operation of the project, laying a solid foundation for the next step of full capacity grid connected power generation. Behind the successful grid connected power generation of the project is a vivid epitome of win-win cooperation between Chinese and foreign enterprises.

As a comprehensive partner in the technical solutions, equipment supply, and services of the project booster station and centralized control center, Schneider Electric has always been active in both the early preparation and project construction. It is affectionately referred to by the general contracting project management department as a “good partner” for China Energy Construction’s overseas project construction.

It is understood that the Alshubach photovoltaic power station project is the largest single photovoltaic power station project under construction in the world. Being able to become a partner for the electrical application products and solutions of this project, and assisting China Energy Construction in its overseas voyage, is inseparable from Schneider Electric’s rich experience in the energy and power field, as well as Schneider Electric’s global efficient network and collaborative system. Schneider Electric’s business covers more than 100 countries around the world. We adhere to the concept of ‘originating from global accumulation, relying on China center, empowering global business’, and work together with various global operation centers to solve the challenges faced by Chinese enterprises going global, “said Lv Ning, the head of Schneider Electric’s overseas business in China, to the People’s Daily Overseas Network.

We have learned that China Energy Engineering Corporation will widely adopt digital and intelligent technologies in the Alshubach photovoltaic power plant project, aiming to make it a landmark project for China Energy Engineering Corporation’s overseas photovoltaic projects. We believe that we must leverage Schneider Electric’s global industrial technology leadership advantages in electrification, automation, and digitization to contribute to China Energy Engineering Corporation’s iconic project. “Lv Ning said in an interview with People’s Daily Overseas Network,” At the beginning of the project launch, we relied on Schneider Electric’s deep accumulation in the Saudi Arabian market for many years, deeply researched the local market situation and power standards, assisted China Energy Engineering Corporation in understanding the local market, and provided photovoltaic industry power system solutions and technical support that meet the needs of the Saudi Arabian market

He further explained, “During the project execution phase, we used Schneider Electric’s professional power system simulation software platform to conduct detailed verification of the project’s power system scheme. This not only helped the client conduct compliance analysis, but also achieved comprehensive optimization of the scheme, ultimately winning recognition from the project owner

Schneider Electric project manager Wang Banxu recalled the project delivery process, saying, “We faced many challenges in this project, with large load changes, multiple design adjustments, and a very tight schedule. The production and delivery process involved multiple countries’ related business units, which further increased the complexity of the work

Facing difficulties and challenges, Schneider Electric plays the role of a “sea traveler”. In order to ensure the smooth progress of the project, we established a dedicated project team, overcame the time difference between domestic and international, coordinated industry experts, Schneider Electric engineers, and customers for multiple discussions, jointly discussed solutions, and conducted strict testing and verification to ensure feasibility and stability. Everyone worked towards the same goal, leveraging Schneider Electric’s efficient supply chain and other production advantages in China, and ultimately prioritized the production and delivery of project equipment, “Wang Banxu added.

In recent years, Middle Eastern countries, especially the United Arab Emirates and Saudi Arabia, have been undergoing energy and economic transformations. Xiong Gaoxia, the person in charge of the China Energy Construction Alshunbach Photovoltaic Power Station Project, told the People’s Daily overseas website that “the company has optimized the whole process of the Alshunbach project with the goal of building a benchmark project of jointly building the the Belt and Road. Schneider Electric’s participation has helped the project achieve the green and low-carbon construction requirements in all aspects and helped China Energy Construction establish a high-end brand image in the Middle East.”

Li Mingjun, a professor of management at China Europe International Business School, said that foreign-funded enterprises play an important role in the “going global” strategy of Chinese enterprises. These multinational corporations are known for their brand and product advantages, or channel advantages, leading Chinese products and local brands into the international market.

It is understood that years of technological accumulation, good global collaboration, customer service capabilities, and international product standards are important reasons why companies like Schneider Electric can help Chinese enterprises go global. As early as more than a decade ago, Schneider Electric China established an overseas business team to promote the organization and coordination of Schneider Electric’s global resources, empowering Chinese enterprises to go global, including engineering general contracting enterprises, foreign investment enterprises, design supervision, and partner units.

Nowadays, more and more Chinese companies are choosing to expand overseas, and their overseas business expansion models are constantly innovating. Schneider Electric is also constantly innovating and upgrading its enterprise development model to better empower Chinese companies to transition from ‘going out’ to ‘going in’, “said Lv Ning. It is reported that Schneider Electric’s participation in the Alshubach photovoltaic power plant project maximizes the use of localized components, providing more than 3000 job opportunities for the local area and promoting local economic and social development. In the next 35 years, the total power generation of the project will reach approximately 282.2 billion kilowatt hours, equivalent to reducing carbon dioxide emissions by nearly 245 million tons, which is equivalent to planting 545 million trees in the desert.

Industry experts say that the Middle East and other regions are becoming popular destinations for Chinese new energy companies to “go global”. “At present, China’s new energy enterprises are leading the world. In order to coordinate with the trend of large-scale new energy enterprises going to sea, Schneider Electric conducts research on power systems in areas where Chinese new energy enterprises go to sea in a concentrated way, and deeply studies the characteristics of power system applications in the new energy industry, and develops corresponding solutions for the industry. In the future, Schneider Electric and Chinese enterprises will continue to carry out all-round and in-depth cooperation, and work together to promote the high-quality development of the the Belt and Road Initiative.” Lu Ning told the overseas website of People’s Daily.

Alibaba Cloud, a leading global cloud computing and artificial intelligence technology company, will integrate the Phoenix Contact Virtual PLCnext Control software solution as part of Alibaba Cloud’s manufacturing solutions, providing Alibaba Cloud’s cloud services and edge cloud infrastructure products to Phoenix Contact’s manufacturing customers in China and even Asia.

Phoenix Contact and Alibaba Cloud reached a cooperation agreement at the Nuremberg SPS Automation Expo, with Alibaba Cloud expanding its cloud computing solutions to the OT field. With the open industrial automation ecosystem PLCnext Technology launched by Phoenix Contact, users can use PLCnext Engineer for programming and access the PLCnext Store automation application store through the Virtual PLCnext Control software solution.

Virtual PLCnext Control

Thanks to the continuous development of virtualization technology, the increasing maturity of SoftPLC technology, and the continuous improvement of hardware performance, virtualized PLC is becoming the combination of the three, and Virtual PLCnext Control is thus born:

Core advantages

Virtual PLCnext Control can be flexibly deployed on various hardware platforms, including industrial PCs, edge devices, and Linux servers, reducing the cost of using PLCs for customers;

With the help of virtualization technology, Virtual PLCnext Control can achieve multi control for one machine, meeting the needs of flexible production and the flexibility of PLC deployment;

The combination of IT and OT provides users with a vast space for custom development. Virtual PLCnext Control provides a highly flexible and open system architecture that allows users to customize development at multiple levels.

Alibaba Cloud Edge Cloud Services

With the increasing demand for massive data generation, real-time processing efficiency, and industry digitization, more and more enterprises are facing challenges in market response speed, resource utilization efficiency, data security, and the IT transformation of traditional businesses.

Alibaba Cloud Edge Cloud pushes computing, storage, networking, and more intelligent services to the network edge closer to end-users and business scenarios. Through a global network of edge nodes, it provides users with lower latency, higher resource utilization, better security and privacy protection, more IT oriented and intelligent cloud services, ensuring the continuity and reliability of enterprise business and providing a soil for the growth of more industry innovation scenarios.

We are willing to work with customers and partners to open up new opportunities in the changing situation, provide new technologies, practices, and ideas for enterprise transformation and upgrading, and accelerate the leap of industrial intelligence!