Siemens LOGO!, Руководство пользователя

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LOGO! functions
4.4 Special functions list - SF
LOGO!
Manual, 04/2011, A5E03556174-01
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4.4.13 Astronomical clock (0BA7 only)
Short description
The astronomical clock function is used to set an output high when the current time of your
LOGO! Base Module is between the time of sunrise (TR) and the time of sunset (TS).
LOGO! 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 LOGO! Wiring Description
Parameter You specify the longitude, altitude and time zone:
Longitude:
Direction settings:
EAST or WEST
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)
Zone:
Range of values:
-11 to 12
4
3DU
$&
Output Q Q is set to "1" when the current time of your LOGO!
Base Module is between the sunrise time (TR) and
the sunset time (TS).
Note
From LOGO!Soft Comfort V7.0, you can choose from several pre-defined time zone
locations. If you select one of these locations, LOGO!Soft Comfort uses the latitude,
longitude, and the time zone of your selection. This location pre-configuration capability is
only possible from LOGO!Soft Comfort.