Operating Manual Compact Weather Station
86 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany
18.6.6 Message Device Identification
The device responds to the identification request with following message (example for SDI-
12 device address ‘0’:
0I!
013Lufft.deWSx00ynnn
x: device type (4, 5, 6, 2, 3 )
y: Metric / US units ( m = metric, u = US )
nnn: Software version
i.e. for a WS600-UMB, configured for US units:
0I!
013Lufft.deWS600u022
18.6.7 Message Verification
The command verification aV! is used to evaluate status information of the device. The
device responds with
a0005<CR<LF>
to the request, i.e. 5 values are available in the buffers.
The first 3 “measurement values”, transmitted in buffer ‘0’ contain the status information of
the measurement channels.
The status data of the channels are assembled to form “fake measurement values”, where
each digit represents one status. See below for the coding of states. Generally each sensor
has two status values, one for the direct value, another for the measurement value buffer
used for the evaluation of the average, min, and max values.
The last two values, transmitted in buffer ‘1’, show the heating temperatures of wind and
precipitation sensor.
Air temperature, air temperature buffer, dew point, dew point
buffer
Status buffer ‘1’: +nnnnnn
Rel. Humidity, rel. Humidity buffer, abs. Humidity, abs
humidity buffer, mixing ration, mixing ration buffer
Status buffer ‘2’: +nnnnnn
Air pressure, air pressure buffer, wind, wind buffer,
compass, precipitation
(WS301/501 transmits the global radiation status instead of
the precipitation status)
Buffer ‘1’, device configured for metric units
Heating temp. Precip. sensor
Puffer ‘1’, device configured for US units
Heating temp. Wind sensor
Heating temp. Precip. sensor