SEPTENTRIO PolaRx5TR, Reference Manual

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1 How To...
1.26 Communicate with External Equipment
The receiver can send periodical queries to external equipment (such as a meteo sensor)
connected to one of its serial ports, and log the replies from that sensor. In the following
example, we show how to retrieve meteo data every 10 seconds from a meteo sensor con-
nected to the receiver’s COM2 port.
1. Tell the receiver which command to use to query the external sensor, and the interval
at which this command must be sent to the sensor. For instance, for a MET3/MET4-
compatible sensor, the command
*0100P9<CR><LF>
queries the meteo data.
Assuming you want to get meteo data at a 10-second interval, enter the following
command:
setPeriodicEcho, com2, A:*0100P9%%CR%%LF, sec10 <CR>
2. Enable unformatted ASCII input on COM2 (to receive the replies from the meteo
sensor):
setDataInOut,COM2,ASCIIIn <CR>
The replies from the meteo sensor (containing the temperature, pressure and humidity) are
available in the
ASCIIIn
SBF block and in BINEX record 0x7E-01.
You can convert an SBF file containing
ASCIIIn
SBF blocks to RINEX using the
sbf2rin
program or the
SBFConverter
graphical tool. Alternatively, you can log the RINEX meteo
file directly on the receiver (see section 1.17). To be able to generate a RINEX file, the output
of the meteo sensor must be formatted according to the NMEA XDR sentence.
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