CI854AK01 3BSE030220R1  ABB PROFIBUS是一种独立于制造商的现场总线标准

PROFIBUS is a manufacturer-independent fieldbus standard for applications in manufacturing, process and building automation. PROFIBUS technology is described in fixed terms in DIN 19245 as a German standard and in EN 50170 / IEC 61158 as an international standard. The PROFIBUS standard is thus available to every provider of automation product.
The PROFIBUS family is composed of three types of protocol, each of which is used for different tasks. Of course, devices with all three protocols can communicate with each other in a complex system by means of a PROFIBUS network.
The three types of protocols are: PROFIBUS FMS, DP and PA. Only the two protocol types DP and PA are important for process automation. PROFIBUS DP: the bus for the decentralized periphery
The PROFIBUS DP (RS 485) is responsible for communication between the Controller level of a process automation system and the decentralized periphery in the field, also intrinsic safety (RS485-IS) via DP-Ex barriers into hazardous area.
One feature of PROFIBUS DP is its high speed of transmission up to 12 Mbit/s. PROFIBUS PA: extension for process automation This PROFIBUS variant was developed for the process industry. Communication and power supply to Transmitter and Positioners are handled direct via one 2-line cable and correspond to IEC Standard 61158-2 (named also as MBP, MBP-LP). Intrinsic safety (EEx i) (MBP-IS) installations in Zone 1 / Div.1 are possible.
Coupling components (Linking Devices) are used to integrate PA bus lines into the PROFIBUS DP network. This ensures that all information is available in a continuously connected network through the complete PROFIBUS system (DP and PA).