IDEC SmartRelay Manual
163
IDEC SmartRelay functions
4.4 Special functions list - SF
4.4.13 Astronomical clock
Short description
The astronomical clock function is used to set an output high when the current time of your
IDEC SmartRelay Base Module is between the time of sunrise (TR) and the time of sunset
(TS). IDEC SmartRelay automatically calculates these times based on the geographical
location, the settings for automatic summertime/wintertime conversion, and the current time
of the module.
Symbol in
IDEC SmartRelay
iring Description
Parameter ou specify the longitude, altitude, time zone, sunrise
time offset and sunset time offset:
L
ongitude:
Direction settings:
EAST or EST
Range of values:
0 to 180 (degrees)
0 to 59 (minutes)
0 to 59 (seconds)
Latitude:
Direction settings:
NORTH or SOUTH
Range of values:
0 to 90 (degrees)
0 to 59 (minutes)
0 to 59 (seconds)
one:
Range of values:
-11 to 12
TR Offset (sunrise time offset):
Range of values:
-59 minutes to 59 minutes
TS Offset (sunset time offset):
Range of values:
-59 minutes to 59 minutes
Output IDEC SmartRelay sets to 1 when the current time
of your IDEC SmartRelay Base Module is between the
sunrise time (TR) and the sunset time (TS).
Note
From indLGC V8.0, you can choose from several pre-defined time zone locations. If you
select one of these locations, indLGC uses the latitude, longitude, and the time zone of
your selection. This location pre-configuration capability is only possible from indLGC.
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