Page 29 of 52
Field Offset
Size Dash
Value
Explanation
Solar Radiation
16
2
32767
Average Solar Rad over the archive period.
Units are (Watts / m
2
)
Number of Wind Samples
18
2
0
Number of packets containing wind speed data
received from the ISS or wireless anemometer.
Inside Temperature
20
2
32767
Either the Average Inside Temperature, or the Final
Inside Temperature over the archive period. Units
are (°F / 10)
Inside Humidity
22
1
255
Inside Humidity at the end of the archive period
Outside Humidity
23
1
255
Outside Humidity at the end of the archive period
Average Wind Speed
24
1
255
Average Wind Speed over the archive interval. Units
are (MPH)
High Wind Speed
25
1
0
Highest Wind Speed over the archive interval. Units
are (MPH)
Direction of Hi Wind Speed
26
1
32767
Direction code of the High Wind speed. 0 = N, 1 =
NNE, 2 = NE, … 14 = NW, 15 = NNW, 255 =
Dashed
Prevailing Wind Direction
27
1
32767
Prevailing or Dominant Wind Direction code. 0 = N,
1 = NNE, 2 = NE, … 14 = NW, 15 = NNW, 255 =
Dashed
Firmware before July 8, 2001 does not report
direction codes of 255
Average UV Index
28
1
255
Average UV Index. Units are (UV Index / 10)
ET
29
1
0
ET accumulated over the last hour. Only records "on
the hour" will have a non-zero value. Units are (in /
1000)
High Solar Radiation
30
2
0
Highest Solar Rad value over the archive period.
Units are (Watts / m
2
)
High UV Index
32
1
0
Highest UV Index value over the archive period.
Units are (Watts / m
2
)
Forecast Rule
33
1
193
Weather forecast rule at the end of the archive
period.
Leaf Temperature
34
2
255
2 Leaf Temperature values. Units are (°F + 90)
Leaf Wetnesses
36
2
255
2 Leaf Wetness values. Range is 0 – 15
Soil Temperatures
38
4
255
4 Soil Temperatures. Units are (°F + 90)
Download Record Type
42
1
0xFF = Rev A, 0x00 = Rev B archive record
Extra Humidities
43
2
255
2 Extra Humidity values
Extra Temperatures
45
3
32767
3 Extra Temperature values. Units are (°F + 90)
Soil Moistures
48
4
255
4 Soil Moisture values. Units are (cb)
4.
Alarm thresholds data format
The alarm thresholds data does not have a dedicated command to set or retrieve the values.
Instead see section XII for more information on reading and writing EEPROM data.
Field Offset
Size Explanation
ALARM_START
82=0x52 94
Starting location for the Alarm threshold data. See section 0
for more details on setting alarm thresholds
BAR_RISE_ALARM
0
1
3 hour rising bar trend alarm. Units are in Hg * 1000
BAR_FALL_ALARM
1
1
3 hour falling bar trend alarm. Units are in Hg * 1000
TIME_ALARM
2
2
Time alarm. Hours * 100 + minutes
TIME_COMP_ALARM
4
2
1's compliment of TIME_ALARM to validate alarm entries
