User manual

Characteristics of the XBT Terminal Range
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33003962 11/2011
Polling Time of XBT NU400 Terminals
The XBT NU400 polls the missing equipment, i.e. a starter, every 5 minutes. This
time interval has been selected due to performance and system validation reasons.
The XBT NU400 is delivered with a unique pre-loaded application for
communication with up to 8 TESYS model U starters. However, in the final system
configuration, less than 8 starters may be used permanently as a normal installation.
In this case, polling the missing starter(s) in too short time intervals will drastically
decrease the communication with the connected starters. This, in turn, may lead to
increased response times and cause critical application issues. In some cases, time
between operator action and starter acknowledgement can be longer than 20
seconds.
This is why the polling time of non-connected equipment has been set to this much
longer period of 5 minutes.
The pre-loaded application in XBTNU400 in version 2.2 and later provide a page for
manually resetting the communication. During this manual restart of the terminal the
reconnected devices will be detected.