Description
Overview
Essential details:RCNA-01 64751701 FIELDBUS KIT ABB
Fieldbus (Fieldbus) is the international development in the late 1980s and early 1990s,
which is used for field intelligent equipment interconnection communication network in the field of fieldbus technology process automation,
manufacturing automation, building automation and other fields. It is the basis of the digital communication network of the factory,
which communicates the connection between the production process site and the control equipment and the higher control management level.
It is not only a basic network, but also an open and new fully distributed control system.
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This integrated technology with intelligent sensing, control, computer, digital communication and other technologies as the main content has received worldwide attention,
become a hot spot in the development of automation technology, and will lead to profound changes in the structure and equipment of automation systems.
The working environment of fieldbus equipment is at the bottom of the process equipment.
As a basic communication network at the factory equipment level, it requires simple protocol, strong fault tolerance, good security and low cost.
It has certain time certainty and high real-time requirements, and it also has the characteristics of stable network load, mostly short frame transmission and frequent information exchange.
Because of the above characteristics, the fieldbus system has the characteristics of different high speed data communication networks from the network structure to the communication technology.
At present, there are more than 40 kinds of fieldbuses in the world, but no fieldbus can cover all applications,
according to the size of its transmission data can be divided into three categories: sensorbus (sensorbus), which belongs to bit transmission;
Device bus (devicebus), which belongs to byte transmission; Fieldbus, which belongs to data stream transmission. Let me go to know the main bus.