Product manual

B Protocols TAC Xenta Server – Gateway, Technical Manual
148 (184) Schneider Electric Buildings AB, June 2011
04-00124-06-en
Interface Status Signals
The BACnet IP interface driver generates several network specific com-
munication status signals, as described below.
• ComsFail – Flags a complete communications failure. Activated
only if communications has failed to the target device. This is
likely to be because of a network configuration or security prob-
lem, or because an incorrect IP address has been entered for the
target device
• ObjsFail – Flags if communications has failed to one or more
objects on the target BACnet device. Normally objects fail
because an incorrect object instance number has been entered.
However, output objects may also fail as a result of attempting to
write an out-of-range value to it.
• online – Flags ONLINE during normal network communications,
and will change to OFFLINE only if communication has failed to
the target device. An OFFLINE condition normally indicates
incorrect communication property settings, or faulty wiring of the
network between the Xenta 913 and the target device.
BACnet Target Devices
Normally only one slave device is added to each BACnet IP interface
node in the network pane of XBuilder, as shown for the Panel device of
the IPSim example network in the following screenshot.