Siemens Simatic RTU303xC Series Operating Instructions Manual page 278

Program blocks
5.6 Blocks for time functions
Parameters
Longitude
Function parameters
Position
Latitude
Longitude
Deviation sunrise
Deviation sunset
278
Range of values
Analog memory bit config-
ured as a floating-point
number:
±3.402823e-38 ..
±3.402823e+38
System location
•
Manual
•
Variable
•
-90 .. 0 .. +90
-180 .. 0 .. +180
-120 .. 0 .. +120
-120 .. 0 .. +120
Description
You only need to assign the input if you configure
the "Longitude" function parameter for the "Varia-
ble" setting.
Analog bit memory of the floating-point number
type:
East = positive
•
West = negative
•
Option for setting the geographic coordinates:
System location: Use of the coordinates config-
•
ured for the RTU on the page "System > Gen-
eral".
Manual: Manual entry of coordinates in the input
•
boxes for "Latitude" and "Longitude".
Variable: Use of the coordinates from the two
•
input parameters "Latitude" and "Longitude".
Latitude
Enter the value for the latitude if you have selected
the setting "Manual" for the "Position".
Degree as number with 6 decimal places:
North = positive
•
South = negative
•
Longitude
Enter the value for the longitude if you have select-
ed the setting "Manual" for the "Position".
Degree as number with 6 decimal places:
East = positive
•
West = negative
•
Value in minutes by which the switching point for
sunrise is shifted:
Negative value = earlier
•
Positive value = later
•
Value in minutes by which the switching point for
sunset is shifted:
Negative value = earlier
•
Positive value = later
•
Operating Instructions, 06/2019, C79000-G8976-C382-06
RTU303xC