HEIDENHAIN PROFIBUS-DP (DPV2) - Manual (Page 18)

Encoder gateway installation
18
2.4 Shielding philosophy
To achieve the highest possible noise immunity and resistance
against other EMI related disturbances the bus and power supply
cables shall always be shielded. The screen should be connected
to ground on both ends of the cable. In certain cases
compensation current might flow over the screen. Therefore a
potential compensation wire is recommended.
2.5 GSD file
In order to start using the PROFIBUS DP gateway, a device
description file needs to be downloaded and imported to the
configuration software. The device description file is called a
G eneric Station Description file and contains the necessary
implementation parameters needed for a PROFIBUS DP device.
Available GSD files can be downloaded from
www.heidenhain.com
GSD file
Gateway functionality GSD file
Gateway PROFIBUS DPV2
(For rotary encoders)
ENC_OB21
Gateway PROFIBUS DPV2 (For
linear encoders)
ENC_0918
Table 4 Available GSD file for DPV2 gateway
The GSD data is saved in the PROFIBUS master and transferred
once to the gateway when the system is powered on. If the
gateway has been started with one GSD file and a new GSD file
with a different ID-number shall be used, the gateway needs to be
restarted before it can use the new GSD file.