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Measurement data and status block
The measurement data and status block holds information which is updated atomically at a predefined interval. Register IV_LEN
indicates the length of the interval.
IV_DATE
IV_DATE holds the date at the end of the averaging interval. The date is stored as a 32-bit unsigned integer according the format
‘YYYYMMDD’ using the formula:
IV_DATE = YYYY * 10000 + MM * 100 + DD
Where:
• YYYY is the 4-digit year
• MM is the 2-digit month
• DD is the 2-digit day of month
IV_TIME
IV_TIME holds the time at the end of the averaging interval. The time is stored as a 32-bit unsigned integer according the format
‘HHMMSS’ using the formula:
IV_TIME = HH * 10000 + MM * 100 + SS
Where:
• HH is the 2-digit 24 hour based hour
• MM is the 2-digit minute
• SS is the 2-digit second
IV_SOLAR_AZIMUTH
IV_SOLAR_AZIMUTH is the solar azimuth angle in degrees at the end of the averaging interval. The value is calculated using a solar
positioning algorithm, location, altitude, date and time and does not include any adjustments.
IV_SOLAR_ZENITH
IV_SOLAR_ZENITH is the solar zenith angle in degrees at the end of the averaging interval. The value is calculated using a solar
positioning algorithm, latitude, longitude, altitude, date and time and does not include any adjustments.
IV_LATITUDE
IV_LATITUDE is the latitude in degrees north at the end of the averaging interval. This is the value being used by the internal sun
tracking process. It is a moving average over 30 seconds and only updated if the distance to the currently active horizontal location
is more than 100 m. When there is no GPS fix, the last known value remains in effect.
IV_LONGITUDE
IV_LONGITUDE is the longitude in degrees east at the end of the averaging interval. This is the value being used by the internal
suntracking process. It is a moving average over 30 seconds and only updated if the distance to the currently active horizontal
location is more than 100 m. When there is no GPS fix, the last known value remains in effect.
Summary of Contents for RaZON+
Page 1: ...RaZON Solar Monitoring System Instruction Manual ...
Page 2: ...2 ...
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Page 71: ...71 Example of a logged ASCII data file via Wi Fi Logging Eport Log File ...