CR1000 Manual - Campbell Scientific

Section 7. Installation
'Declarations
Public rTime(9) As Long
Public rTime2(7) As Long
Dim x
'(or Float)
'(or Float)
DataTable(SecondTable,True,-1)
DataInterval(0,5,Sec,10)
Sample(1,rTime,NSEC)
Sample(1,rTime2,NSEC)
EndTable
'Program
BeginProg
Scan(1,Sec,0,0)
RealTime(rTime)
For x = 1 To 7
rTime2(x) = rTime(x)
Next
CallTable SecondTable
NextScan
EndProg
CRBasic Example 46.
NSEC —Convert Timestamp to Universal Time
'Application: the CR1000 needs to display Universal Time (UT) in human readable
'string forms. The CR1000 can calculate UT by adding the appropriate offset to a
'standard time stamp. Adding offsets requires the time stamp be converted to numeric
'form, the offset applied, then the new time be converted back to string forms.
'These are accomplished by,
'1) reading Public.TimeStamp into a LONG numeric variable.
'2) store it into a type NSEC datum in final data storage.
'3) sample it back into string form using the TableName.FieldName notation.
'Declarations
Public UTTime(3) As String * 30
Dim TimeLong As Long
Const UTC_Offset = -7 * 3600
'-7 hours offset (as seconds)
DataTable(TimeTable,true,1)
Sample(1,TimeLong,Nsec)
EndTable
'Program
BeginProg
Scan(1,Sec,0,0)
'1) read Public.TimeStamp into a LONG numeric variable.
TimeLong = Public.TimeStamp(1,1) + UTC_Offset
'2) store it into a type NSEC datum in Final Data Storage.
CallTable(TimeTable)
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