ABB AC 800M, User Manual

Page: 17 / 118

3BDS009029R5001 B 17
Section 1 Introduction
General Overview
Fieldbus systems are used as a means of communications for serial data exchange
between decentralized devices on the field level and the controller of the process
supervision level.
PROFIBUS means PRO cess FI eld BUS , designed as a fieldbus for process
automation purposes for interconnecting D ecentralized P eripheral devices
(PROFIBUS DP), and its extended version for P rocess A utomation (PROFIBUS
PA). It is well known all over the world and the most popular fieldbus in Europe.
Due to its high data transmission rates over short distances and moderate ones over
long distances it is predominantly used for interconnecting I/O units like S800 /
S900 or smart devices to PLCs and controller like AC 800M.
This user manual provides a brief overview of the PROFIBUS technology, to help you
by planning, commissioning and testing. It does not release you from the necessity to
observe the relevant standards. The valid version of the EMC directive and other
PROFIBUS guidelines and the shield and grounding directives, particular for
PROFIBUS-PA must be observed.
Data in this document are based on experiences, but do not replace however the
relevant standards and regulations as there are for example:
British Standard BS EN 50170
Euro Standard EN 50170
International Electrotechnical Commission IEC 61158
PROFIBUS Specification 0.032, FMS, DP, PA Specification
PROFIBUS Guideline 2.112, PROFIBUS DP/FMS Installation Guideline
PROFIBUS Guideline 2.092, PROFIBUS PA User and Installation Guideline
PROFIBUS Guideline 2.021 (draft in german), Optical Transmission Technics