Simrad GO XSE Series Installation Manual page 53

All devices allow allocation of an instance number in the configure
option. Set unique instance numbers on any identical devices on
the network to allow the unit to distinguish between them. The
data option shows all data being output by the device.
Ú Note:
In most cases, setting the instance number on a 3rd party
product is not possible.
Diagnostics
Provides information useful for identifying an issue with the
network.
NMEA 2000
Provides information on NMEA 2000-bus activity.
Ú Note:
The following information might not always indicate an
issue that can be simply resolved with minor adjustment to
network layout or connected devices and their activity on the
network. However, Rx and Tx errors are most likely indicating
issues with the physical network, which can be resolved by
correcting termination, reducing backbone or drop lengths, or
reducing the number of network nodes (devices).
UDB
Provides information on Ethernet activity.
SimNet groups
This function is used to control parameter settings, either globally or
in groups of units. The function is used on larger vessels where
several units are connected via a network. By assigning several units
to the same group, a parameter update on one unit will have the
same effect on the rest of the group members.
If any of the settings require discrete control, set the group to None.
Damping
If data appears erratic or too sensitive, damping may be applied to
make the information appear more stable. With damping set to off,
the data is presented in raw form with no damping applied.
System setup | GO XSE/XSR Installation Manual
53