System documentation: profibus-dp, General information, Gsd file – Baumer GE-GB-GXxxx User Manual
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Manual_ProfibusDPV2_BIDE_EN.docx
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Baumer IVO GmbH & Co. KG
22.11.12
Villingen-Schwenningen, Germany
7. System documentation: Profibus-DP
7.1. General information
PROFIBUS is a manufacturer-unspecific open communication system for applications in the fields of
production, process and building automation. It is broken down into three variants:
PROFIBUS FMS for data communication between control units on the production and process
management level.
PROFIBUS PA for process engineering applications.
PROFIBUS DP for fast data exchange between control units and decentralized peripherals in process
automation.
PROFIBUS-DP is characterized by the following properties:
Short response times (1 ms with 32 users and 12 MBaud)
Reliable transmission procedure (Hamming distance 4)
Availability of a wide range of standardized system components
Good diagnostic capability
Simple handling and facility for upgrading
User-oriented bus system
Open system
PROFIBUS-DP ist standardized by EN 50170 Vol. 2 defining communication and user profiles. To clock-
synchronous encoders applies „Profile for DP-V2 Encoders Version 3.2, Order No: 3.162“ in the respective
actual amendment.
The profile differs by the number of supported functions according to device class 3 and 4. Device class 4
comprises functional extensions and all functions of class 3. Parameterization and preset functions are only
supported by class 4. The product supports classes 3 and 4.
7.2. GSD file
The device master data file (GSD file) describes all encoder data required for operation. Format and content
are defined by standard EN 50170.
The GSD file provides ident number 09F6 for all encoders described. The GSD file is an essential
configuration tool for encoder parameterization and configuration.
The GSD file provides two kinds of information:
General information such as manufacturer’s name, product designation, ident number, PROFIBUS -
specific parameters and Baud rates.
Application-relevant information such as configuration options, parameters, parameter descriptions,
hardware and software status and diagnostic possibilities.