SolarNSAxisPrimary (FUN)

FUNCTION SolarNSAxisPrimary : LREAL

This function calculates the angle of north to south axis according to: azimuth, elevation and correction alignment factor.

Alignement correction is the angle between system axis and east (clockwise)

../../../../../../_images/AlignmentCorrection.jpg

The block output is the Angle of north to south axis (0°=zenith, -90°=east, 90°=west). Output value is in Degrees.

../../../../../../_images/SolarEWAxisPrimaryOutput.jpg
InOut:

Scope

Name

Type

Initial

Comment

Return

SolarNSAxisPrimary

LREAL

Input

Azimuth

LREAL

0

1: Topocentric azimuth angle. Eastward from north (0°=360°=north, 90°=east, 180°=south, 270°=west). Format: Degrees, Range: 0 to 359.9999

Elevation

LREAL

0

2: Topocentric elevation angle (0°=sunrise, 90°=zenith). Format: Degrees, Range: -90.00…90.00. Negative values = darkness

AlignmentCorrection

LREAL

0

3: Angle between system axis and north (clockwise). Format: Degrees, Range: -180.00…180.00.