Product manual

TAC Xenta Server – Gateway, Technical Manual 2 Planning the Project
Schneider Electric Buildings AB, June 2011 25 (184)
04-00124-06-en
TAC Vista Device Structure
The LonWorks network is called ACME_Inc after the company. The
device structure is created in TAC Vista. Since the building has two
floors, the network is designed with its devices divided into two Xenta
groups named 1st_Floor and 2nd_Floor. The device RTU4 is located on
the second floor and belongs to the Xenta group 2nd_Floor.
For instructions on how to create this device structure see Classic Net-
works, Technical Manual.
A device structure can also be created using LNS Networks, Technical
Manual. LNS networks are used when the LonWorks network commu-
nication uses bound SNVTs.
TAC Xenta 913
The Xenta 913 includes a gateway application that allows various val-
ues to be transferred between the devices. A presentation of the values
is accessed through a standard web browser, provided by a built-in web
server in the Xenta 913.
Energy Meter PM710
The energy meter PM710 communicates with the Xenta 913 using the
Modbus communications protocol. The Xenta 913 is the communica-
tions master and the energy meter is a slave. For more information about
configuring the energy meter, see the PM710 documentation.
2.4.3 The Example in the Manual
To help demonstrate the TAC Xenta 913 configuration process, a sim-
ple example system is described throughout this document. In the exam-
ple, the Xenta 913 is configured as a Modbus Master and it
communicates to the energy meter which runs as a Modbus slave.
The devices are connected to each other as follows:
The Xenta 913 will be added as a LonWorks device (LWD) on the Lon-
Works network, as described in Chapter 7, “Adding the TAC Xenta 913
to the LonWorks Network”, on page 55.
Fig. 2.5: The device structure.
TCP/IP
2nd_Floor
TCP/IP
LON
ACME_Gateway
Energy_Meter
RTU4 M1 M3
Modbus