L-INX/L-GATE User Manual 10 LOYTEC
Version 7.2 LOYTEC electronics GmbH
The L-INX and the L-GATE permanently collect statistical information from the attached
network channels (OPC connections, FT traffic, MS/TP token passing, Ethernet traffic, etc.).
Using this data, the device is able to detect problems on these channels (overload, lost tokens,
connection problems, etc.) and warns the system operator via LEDs (see Section 6.4). An
intuitive user interface allows fast and easy network troubleshooting without any additional
analysis tools or deep system knowledge. For troubleshooting Ethernet protocols a local and
remote Wireshark packet capture can be configured (see Section 10.2).
The built-in Web server allows convenient device configuration through a standard Web
browser such as the Internet Explorer or Firefox. The Web interface also provides statistics
information for system installation and network troubleshooting. Some devices also have an
LCD display, which provides a quick way to configure basic settings of the device via a jog
dial. Also available on some L-INX models are ports for SD card memory and a USB
peripheral bus.
Some L-INX and L-GATE models are also equipped with a 2-port Ethernet Switch/Hub. In
switched mode an Ethernet daisy chain can be built, which reduces cabling effort. The two
Ethernet connectors can also be configured to work as two isolated IP interfaces. This can be
used to safely connect a local building network while keeping it isolated from WAN access,
that exposes some aspects using secure services. By using the external L-WLAN adapter, the
device also provides a WLAN interface, which can link to an existing access point, set up its
own access point or work in a wireless mesh network.
The L-INX is used for:
Exposing data of control network devices from different technologies (CEA-709,
BACnet, KNX, Modbus, M-Bus) to data points in the automation server,
Directly connecting I/Os to data points in the automation server,
exposing data points to OPC tags,
visualization of data points with the supplied LOYTEC L-WEB software,
visualization of data points in an OPC XML-DA, UA SCADA package,
Room control, plant control running IEC61131 programs on data points,
automatic meter reading applications via M-Bus and Modbus,
meter gateway to BACnet using pulse counters or M-Bus and Modbus meters,
browsing data points on the Web interface or LCD display,
basic automation functions on data points (alarming, trending, scheduling),
logging alarms,
sending e-mails on alarms, trend logs, or scheduled events.
The L-GATE is used for:
Connecting data points between any supported control networks (CEA-709, BACnet,
KNX, Modbus, M-Bus) using the universal gateway function,
browsing data points on the Web interface or LCD display,
exposing data points to OPC tags,
basic automation functions on data points (alarming, trending, scheduling),
logging alarms,
sending e-mails on alarms, trend logs, or scheduled events,
gateway for ANSI/CEA-709 network variables (NVs) and configuration properties
(CPs),
gateway for standard (SNVT, SCPT) and user-defined (UNVT, UCPT) types.