NORD Drivesystems BU0220 User Manual
Page 92
PROFIBUS DP
– Supplementary manualfor NORD Frequency Inverter SK 2xxE
92
Subject to technical amendments
BU 0220 GB-0912
8.3.4.5 Device master data (GSD file)
All performance features of the NORDAC PROFIBUS DP module are collated in a device master file
(electronic data sheet). The structure, content and coding of the device master file (GSD) are used
(standardised in a readable ASCII text file) for simple PROFIBUS DP communication. The GSD file enables
the convenient planning of NORDAC frequency inverters via tools from various control unit suppliers. In
addition to general information, the GSD file also contains specifications for communication, which are specific
to the manufacturer. These specifications are structured into three sections:
General Data
Details of the manufacturer and the device, software and hardware version
numbers, supported transfer rates etc.
Master data
Specific parameter details for the master, upload and download facilities.
Slave data
Specific parameter details of the slave, number and type of I/O channels,
diagnostic texts and module details for modular device structures.
The standardised GSD files are included in the scope of delivery of the devices (frequency inverters) (enclosed
documentation CD (Electronic Product Documentation)) and are available for download free of charge from the
Getriebebau NORD GmbH homepage und
For the decentralised SK 200E device series with the associated technology units SK CU4-
… or SK TU4-…
the GSD file
(SK 200E technology unit, incl. DP-V1, 12MBaud)
must be implemented.
This GSD file differs from the previous files provided by Getriebebau NORD GmbH, among other things in the
extension of the DP-V1 functionality.
In the SIMATIC S7 Manager, the configuration data is stored under the Slave_Family (Code 1 = Drives), e.g.
under the heading Further field devices under Drive units in the catalogue directory NORD@DPV1 of the
hardware configuration manager. By means of parameterisation Auto_Baud_supp (Value = 1) the automatic
baud rate detection is switched on. The function Set_Slave_Add_supp (Value = 0) is disabled, so that the
slave address cannot be set from the DP master. The setting of several modules is supported by the setting
Modular_Station (Value = 1). For further information, please refer to the above GSD file.
The PROFIBUS users´ organisation archives this information for all manufacturers and provides this in
Internet.
8.3.4.6 Ident number
In order for the PROFIBUS DP master to uniquely identify the various DP devices, the slaves are labelled with
an ident number which is specific to the manufacturer. On start-up of the PROFIBUS DP master, the ident
numbers of the connected DP slaves are compared with the ident numbers in the specified planning data in
the planning tool.
In order to rule out planning errors and malfunctions, the transfer of reference data only begins once the
correct device types have been connected to the correct station addresses on the bus and have been
recognised by the master.
The ident numbers for Profibus modules from Getriebebau NORD are as follows:
7531
hex
all Profibus modules for the device series except for SK 200E
→ SK TU4-… and SK CU4-…
0BA8
hex
Technology units for the device series SK 200E
→ SK TU4-… and SK CU4-…