Ever more popular at present is the building of intelligent creating technologies andpc it combined with item of the info society requirements, but also the near future direction of building improvement. Smart creating automation methods mainly by building (BAS), telecom and automation program (CAS) as well as office automation systems (OAS) system made up of the 3. Included in this, the building automation system is the actual smart creating simplest and important element. Because the90s associated with 20th century, using the manage technologies, computer technology, conversation technologies, there’s been based on field bus control system (FCS). It is an all-digital, all scattered, all open, interoperable, and open up interconnection of new generation control program. Presently, field bus technologies has become a hot topic in automation technology, highly automated domestic as well as foreign gear producers and the user’s interest. FCS greatly simplifies the actual control program associated with cumbersome conventional low-tech cabling and the amount of work of the system detection as well as control device to the distribution more reasonable.