Technical data

MESOMATIC Automation und Messtechnik GmbH D-71394 Kernen
4.3. Parameterisation of the Profibus-DP Master
4.3.1. Design
In order to design a Profibus-DP network, the device master data files
("GeraeteStammDaten", GSD files) of all bus participants must be entered in the Profibus
Master configuration programme. It may be necessary to enter a "Read in/Save" and/or
"Translate" command after this, depending on the master software used.
4.3.2. GSD file
The device master data file (GSD file) for the DK900 is included in the DK900’s scope of
supply, and is delivered on 3.5 inch floppy disks together with the device.
The name of the GSD file is: DK9007A3.GSD
All parameters required by the DK900 are provided by the device master data. You must,
however, select the data channels to be used therefor.
Important! If the process data channel is used together with the bidirectional channel, it
may be necessary - in case a Siemens S7 SPC is used (depending on the CPU type) -
to use the shortened bidirectional channel for the commands to be transmitted to
the DK900 since certain CPU types are not able to transmit more than a total of
32 Bytes per DP slave.
DK900 9