Fieldbus product manual

Author: Cai Zhongyong
Publisher:
Publish Date: 2004-06-01
Features: The emergence and development of fieldbus technology have had a significant impact on automation control technology. Due to its strong overall safety and reliability, high informatization level, and ease of system integration and maintenance, fieldbus control systems have been adopted in various fields such as automotive manufacturing, tobacco processing, beer bottling lines, semiconductor production lines, product automatic assembly and packaging lines, textile machinery, power systems, and municipal engineering. The breadth and depth of its application have been continuously expanding.
The Fieldbus Product Manual presents a concise and clear overview of various types of fieldbus and their related products currently available in the domestic market. It also provides a directory of major suppliers and their sales outlets. Users can search for the required products through multiple channels, including product categories, bus types, and supplier listings. This manual serves as an important reference for system designers and users to understand the supply situation in the fieldbus market and make informed selection decisions.
The emergence and development of fieldbus technology have had a profound impact on the automation field, and it is being increasingly understood, accepted, and adopted by more users. The editors have been engaged in the application and promotion of fieldbus technology for many years. They have found that it may be due to the numerous fieldbus protocols and standards, the relatively complex theoretical knowledge, and the high requirements for foundational knowledge, making it difficult to gain a comprehensive understanding. Additionally, there are many suppliers of fieldbus-related products, with new products constantly emerging. During promotion and marketing, each supplier may highlight the strengths of their products, sometimes leading to conflicting claims, leaving automation control users confused and system designers uncertain. They may often believe that traditional PLC or DCS control is safer and more reliable.
In reality, the emergence and development of fieldbus technology are both inevitable and necessary. From a technical perspective, fieldbus technology is more advanced and complex than traditional control technology, with a higher level of informatization. From a user perspective, it is more convenient, simpler, and safer.
This is similar to photography technology. Traditional mechanical cameras have simpler structures and principles, but users must manually adjust parameters such as aperture size, exposure time, and object focus to take clear photos. In contrast, modern fully automatic cameras (commonly known as cameras) are technically much more complex, but users generally do not need to consider aperture, time, or focus—just pressing the shutter button is enough to take a clear photo. Similarly, fieldbus technology can significantly save system design, installation, and debugging time for system designers, making it much easier for users to operate and maintain. It also improves the safety, reliability, and visualization of the system.
With multiple fieldbus technologies competing in China, users are presented with more choices, but this also increases the difficulty of distinguishing and judging. As industry insiders say, to date, no single fieldbus is the best—the most suitable is the best for users. The purpose of writing and publishing this manual is to help system designers and users better identify, evaluate, and select the most suitable fieldbus.
Since fieldbus technology is a new technology involving various automation components, there is no unified classification method for different fieldbus types. Additionally, the same components may have significant differences in terminology and Chinese translations, making the writing and organization process challenging. There will undoubtedly be many inappropriate or even incorrect points, and we sincerely appreciate any feedback from readers to help improve accuracy and rationality in future editions.
During the data collection process, we received full support from companies such as Omron, Siemens, Rockwell Automation, and Festo. We also greatly appreciate the assistance of colleagues such as Zhao Wenhua, Li Yun, and Dai Weiqian during the writing process. Our heartfelt gratitude goes to all of them.