Product manual

TAC Xenta Server – Gateway, Technical Manual 2 Planning the Project
Schneider Electric Buildings AB, June 2011 21 (184)
04-00124-06-en
2.3 Surveying the Target System Installation
Normally, the target system is installed and commissioned before you
install the Xenta 913. Of course, it is possible to install the Xenta 913
first, but it cannot be fully commissioned until the target equipment is
operational. So, in most cases, the first step is to survey an existing
installation and verify the operation of the target devices.
2.3.1 Surveying the Target Equipment
A site survey should be carried out to locate and identify all of the target
devices. Where applicable, the type and address of each slave device
should be identified and a suitable name assigned. For target systems
containing multiple devices, it may be necessary to change each
device’s network address to ensure it can be uniquely identified by the
Xenta 913. Furthermore, any device communications parameters, such
as baud rate, must be set to the same value on each target device, and
recorded for applying to the serial channel of Xenta 913.
Determine the signals that are available by using the available target
device documentation, as well as their associated addresses within the
device. You should also identify other value parameters, such as units
and data format.
2.3.2 Checking the Operation of the Target Devices
Before connecting the Xenta 913, it is important to verify that each of
the target devices is operating correctly.
It is not necessary at this stage to test the target communications. This
can be left until later when the communications cables have been wired
to the Xenta 913.
Important
• Many of the problems normally attributed to the Xenta 913 are in
fact caused by incorrect configuration or operation of the target
equipment itself.