Campbell Scientific CR9000X Measurement and Control System - Manual (Page 84)

Section 2. Data Storage and Retrieval
LINE 5 Field Data Type
This header line is only in TOB1 and TOB3 binary formats and identifies
the data type for each of the fields in the data table. Data types include
FP2, IEEE4 (float), Long (ULong), UINT2, Bool4 (Boolean), Bool8,
NSEC, and String.
See "Table 4.2.4 Data Types" located in Section 4.2.4.4.
LINE 6 Time Stamp
This field is the date and time stamp for this record. It indicates the time,
according to the logger clock, that each record was stored. It is actually
stored in the Binary format as the Seconds and Nanoseconds since Jan. 1,
1990.
Record Number
This field is the record number of this record. The number will increase up
to 2
32 and then start over with zero. The record number will also start over
at zero if the table is reset.
Field Data
This is the data for each of the fields in the record.
All of the Data File structure format examples that follow in this section
were created with the program listed in Example Program 2.4-1.
SlotConfigure(9050)
Public TC(4) : Units TC = Deg_F
'Declare Var array for TCs
Public TRef(1) : Units TRef = Deg_C 'Declare Reference Temp
Public Flag(8) 'Declare General Purpose Flags
DataTable(TEMP,True,-1)
'Name, Trigger, auto size
DataInterval(0,10,mSec,100) '10 mS rate, 100 lapses, autosize
CardOut(0,-1) 'PC card , Ring, Auto-size
Sample (1,TRef(),IEEE4) '1 Rep, Source,IEEE4
Average(4,TC(),FP2,False) '4 Reps,Source,FP2,Enabled
EndTable 'End of table TEMP
BeginProg
'Program begins here
Scan(5,mSec,100,0) 'Scan once every 5 mSecs
ModuleTemp(TRef(),1,4,20) 'Make measurements
TCDiff(TC(),4,mV50C,4,1,TypeT,TRef(1),True,40,70,1.8,32)
If Flag(1) Then CallTable TEMP
'Call Data Table Temp
Next Scan 'Loop up for the next scan
EndProg 'Program ends here
Example Program 2.4-1: Data.C9X program file that created all
example data files in this section
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