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PROFIBUS / PROFIsafe - Commissioning
6.1.2 Device master file (GSD)
In order to achieve a simple plug-and-play configuration for PROFIBUS, the
characteristic communication features for PROFIBUS devices were defined in the
form of an electronic device data sheet (device master file, GSD file).
Using the defined file format, the configuration system can easily read in the device
master data of the PROFIBUS measuring system and automatically take account of it
in the bus system configuration.
The GSD file is a constituent of the measuring system and has the file name
"TR000CE3.GSE" (English). The measuring system also has three bitmap files called
"TR0E_BDE.bmp", "TR0E_BDI.bmp" and "TR0E_BSF.bmp", which it displays in
normal mode, in diagnostic mode and in special operating states.
The files are contained on the software/support DVD:
Art. no.: 490-01001, Software no.: 490-00406.
System Configuration
PROFIBUS
Configurator
PLC
Electronic Device Data Sheets (GSD Files)
PROFIBUS
Figure 13: GSD for the configuration
6.1.3 PNO ID number
Every PROFIBUS slave and every Class 1 master must have an ID number. This is
already entered in the supplied GSD file.
It is required so that a master can identify the type of the connected device without
significant protocol overhead. The master compares the ID numbers of the devices
connected with the ID numbers of the configuration data specified in the configuration
tool. The transfer of user data only starts once the correct device types have been
connected with the correct station addresses on the bus. This achieves a high level of
security against configuration errors.
The measuring system has the PNO ID number 0x0CE3 (hex). This number is
reserved and is stored with the PNO.
Printed in the Federal Republic of Germany
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05/25/2011 TR - ECE - BA - DGB - 0079 - 03 Page 141 of 207