Fieldbus Foundation Device Registration(NCS-PT105)

The Fieldbus Foundation (FF) is the only fair and non-commercial International Organization for Standardization that is not affiliated with a company. Its purpose is to formulate a unified fieldbus international standard, which can be used by anyone without a patent license. The current work standard refers to the first, second, and seventh layers of the lso/osI model, namely physical layer, data link layer and application layer. In addition, the user cloud is added.