FIS HDL1, Operating Manual

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BUILT-IN SENSOR DEFINITIONS
The following table gives a list of all the sensors whose definitions and support are
built into the data logger and so do not need to be explicitly defined in the program. A
more detailed description of the sensor tag names can be found in Appendix B.
Name Tag Name Units
String
Min
Value
Max
Value
Rain count RnCnt counts 0 65535
Logger clock source ClkSrc 0 5
SDI voltage SdiV V 0.0 25.4
D cell pack voltage D_Cell V 0 25.4
Telemetry unit voltage Telem V 0.0 25.4
Current year t_Year 1980 2115
Current month t_Month 1 12
Current day of the month t_Day 1 31
Current hour t_Hour 0 23
Current minutes t_Min 0 59
Current seconds t_Sec 0 59
Current day of year t_DayOfYr 1 366
Seconds since midnight t_SeOfDy 0 86399
Seconds since start of hour t_SeOfHr 0 3599
The logger clock source returns a value of 0 to 5 to indicate the clock status.
The values are as follows:
0: The battery backed clock has failed or is not present and the time in the
logger is likely to be incorrect.
1: The time was set by the user, either through the display or by telemetry.
2: The time was set from the battery backed clock.
3: The time has been set from a GPS clock (any GOES telemetry)
4: The time has been set from a high accuracy secondary clock in the G3
GOES telemetry unit.
5: The GPS clock has failed, and the logger was unable to use the G3
clock, so is using the logger crystal oscillator.