L-INX User Manual
20
LOYTEC
Version 4.0
LOYTEC electronics GmbH
The BACnet L-INX with the router option possesses a BACnet router between the
BACnet/IP port and the MS/TP port. This router can be operated and configured like the
LIP-ME200 from LOYTEC. The BACnet/IP interface can be used to connect the L-INX to
an IP-based high-speed backbone. The L-INX also can act as a BBMD for a BACnet/IP
network. For a detailed description of the BACnet router‘s usage refer to the LIP-ME201
User Manual [2].
A BACnet L-INX without the router option can be configured to run either on the
BACnet/IP interface or on the MS/TP interface. In BACnet/IP mode, the L-INX can be
configured as a foreign device in another BBMD. It does not provide the BBMD
functionality itself.
The BACnet technology in the L-INX allows for:
Exposing local BACnet server objects (analog, binary, multi-state) and remote objects
(client mappings) to data points,
scheduling from native BACnet schedule and calendar objects,
trending to native BACnet trend log objects,
generating native BACnet alarms,
communicating with either MS/TP or BACnet/IP,
connecting an MS/TP network to a high-performance backbone using existing IP infra-
structure,
operation as a BBMD for a BACnet/IP network with the router option.
1.4 M-Bus
In addition to the basic network technologies the device supports the M-Bus interface
according to the standards EN 13757-2 and EN 13757-3. To gain access to the M-Bus
network, an external M-Bus interface such as the L-MBUS by LOYTEC must be attached
to the device. On devices with a serial port, the M-Bus interface is connected to the serial
connector. In this case the user needs to turn M-Bus support on and off via a DIP switch.
On devices without a serial port, the L-MBUS interface must be used and is connected to
the extension port (EXT).
Through the M-Bus interface the L-INX can be used to scan the attached M-Bus network
for devices, pull M-Bus data points into a configuration, connect those data points to other
technologies and expose M-Bus data points to the automation server. All AST functions can
be used directly on M-Bus data points. Especially trending data and polling for data on M-
Bus devices has been optimized for automatic meter reading applications.
For debugging purposes a protocol analyzer is included in the firmware and can be operated
via the Web-UI and the configuration software. For more information on how to set up the
device for using M-Bus, configuring and using M-Bus data points, refer to Chapter 10.
1.5 Modbus
In addition to the basic network technologies the device supports the Modbus RTU and the
Modbus TCP interface. To gain access to the Modbus network, the appropriate interfaces
have to be activated either in the Web UI or in the configuration software. Modbus RTU is
operated with 8N1. A Modbus port can either be operated as Modbus master or Modbus
slave.
