Programming with TAPPS2 / System values
42
System values
The following system values can be selected as the
source
for function input variables and CAN and
DL outputs:
•
General
•
Time
•
Date
•
Sun
"General" system values
When programmed accordingly, these system values allow monitoring of the controller system.
•
Controller start
•
Sensor error inputs
•
Sensor error CAN
•
Sensor error DL
•
Network error CAN
•
Network error DL
Controller start
generates a 20 second pulse 40 seconds after the device is switched on or reset, and
is used for monitoring the controller starts (e.g. after power failures) in the datalogging feature. The
interval time in datalogging should be set to 10 seconds for these starts.
The
sensor errors
and
network errors
are global digital values (No/Yes) which are not connected to
the error status of a specific sensor or network input.
If any one of the sensors or network inputs has an error, the status of the corresponding group
changes from "
No
" to "
Yes
"
"Time" system values
"Date" system values
•
Second (of the current time)
•
Day
•
Minute (of the current time)
•
Month
•
Hour (of the current time)
•
Year (without century)
•
Second pulse
•
Day of the week (starting with Monday)
•
Minute pulse
•
Calendar week
•
Hour pulse
•
Day of the year
•
Summertime (digital value OFF/ON)
•
Day pulse
•
Time (hh:mm)
•
Month pulse
•
Year pulse
•
Week pulse
The "Pulse" values generate a single pulse per time unit.
"Sun" system values
•
Sunrise
(time)
•
Sunset
(time)
•
Minutes until sunrise
(on the same day;
does not go beyond midnight)
•
Minutes since sunrise
•
Minutes until sunset
•
Minutes since sunset
(on the same day;
does not go beyond midnight)
•
Solar altitude
(see shading function)
•
Direction of the sun
(see shading
function)
•
Solar altitude > 0°
(digital value ON/OFF)
