Arexx BS-1000LAN Mode D'emploi page 48

1c. INTRODUCTION BS-1000 LAN TRANSCEIVER
The BS-1000LAN records for each wireless sensor its measurement and time
stamp. These measurements are shown in the build in webserver and on one
or more PC,s in the LAN network with the TCP/IP protocol.
The recorded measurements are also used as input for the internal alarm
control module: It checks the incoming measurements against the given
rules. Depending on the condition given in the rule, an alarm or message is
generated. Rules can be constructed by the rule editor tool, which can be
found in the Multilogger software as well.
When a message is generated, it can be sent to a web service using TCP/IP
protocol via the LAN network. The device also can generate e-mail messages
as alerts. Furthermore, email to SMS text messages can be generated as well.
The exact action depends on the rules defined and stored in the BS-1000.
The text of a message can be customized with data tags like the actual
measurement value, sensor id etc.
The BS-1000 usually operates stand alone, but it can also operate as a USB
BS-510 base station. When connected to the Multilogger software via USB,
the PC will record incoming measurement data via the BS-1000 directly.
The AREXX Multilogger sensors continuously report wireless new values to the
receiver at intervals of about 45 seconds. This time is fixed in the sensors
and cannot be changed.
Sensors and receiver use a wireless communication system, working at
433MHz. This frequency is freely available for communication at transmitting
powers under 10 milliwatts. Depending on surrounding building constructions,
the allowed 10mW power level allows a transmission range of 20-40 meters.
Unreliable signal levels may be improved
substantially by slightly modifying the
sensor's or the receiver's location.
See also transmission losses in Chapter 3
For the latest software, documentation and manuals see;
http://www.arexx.com
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