Operation
MetPak Base Station User Manual
©
Gill Instruments Ltd
Last Change
Page 36
22 April, 2013
Example Default 2 Axis Data String
:
<STX>Q,170,000.08,1019.5,035.0,+024.7,+008.3,+04.9,00,<ETX>55 & (CR,LF)
STX
Node letter
Wind direction
Wind speed
Pressure
Humidity
Temperature
Dewpoint
Supply voltage
Status code
ETX
Checksum
Carriage Return/Line Feed
NOTES:
<STX> is the Start of String character (ASCII value 2).
<ETX> is the End of String character (ASCII value 3).
Checksum, the 2 digit Hex Checksum sum figure is calculated from the Exclusive OR of the bytes
between (and not including) the STX and ETX characters.
Example MetPak Base Station Data String
:
With 2 Axis wind sensor
Q,249,000.01,1017.3,049.2,+021.4,+010.3,+11.6,00, 7C
With 3 Axis wind Sensor
MetSet is used to set 3 axis wind readings for Wind Direction and Speed (Polar) and W readings.
Q,249,000.03,+000.02,1013.5,042.9,+022.0,+008.8,+11.6,00, 50
MetSet is used to set 3 axis wind readings for U, V and W readings.
Q,+000.01,-
000.02,+000.00,1013.4,043.0,+022.1,+009.0,+11.6,00, 74
NOTE.
Switch on Time
. Upon switching on the MetPak Base Station, allow 9.5
seconds to elapse before data is output. If powering Wind Sensors
separately then take individual sensor start up times into consideration.
