The premise of the comparison is that the DCS system is compared with a typical, ideal FCS 

system. Why make such an assumption? As the DCS system has developed to today, the technical

requirements put forward in the early stage of development have been met and improved, and 

the current situation is further improved, so there is no such thing as typical and ideal. As an FCS

system, it was just put into practical use in the 1990s. As the technical requirements in the early 

stage of development: compatible and open, two-way digital communication, digital intelligent 

field devices, high-speed bus, etc., it is not ideal at present and needs to be improved. 

This state cannot be said to have nothing to do with the formulation of the fieldbus international

standard. In the past more than ten years, various bus organizations have been busy formulating

standards, developing products, and occupying more markets. The purpose is to squeeze in

international standards and legally occupy more markets. Large companies and organizations 

have realized that in order to really occupy the market, they must improve the system and related

products. We can predict that in the near future, a complete fieldbus system and related products

will become the mainstream of the world's fieldbus technology.

B&R X20DI2377 Digital Input Module, Siemens 6ES7407-0DA00-0AA0 PS 407 POWER SUPPLY,

Allen Bradley 1734-IR2 RTD Input Module, B&R X20BM31 Bus Module New  

Have interest in above parts? get in touch with Vivi (sh_plc@163.com).