
Section 2. Data Storage and Retrieval
"File Format","Station","Logger","Serial No.","OS Ver","DLD File","DLD Sig","Table Name"
"TIMESTAMP","RECORD","Field Name","Field Name","Field Name"
"TS","RN","Field Units","Field Units","Field Units"
"","","Processing","Processing","Processing"
"Field Data Type","Field Data Type","Field Data Type","Field Data Type","Field Data Type"
timestamp,record number,field data,field data,field data,
FIGURE 2.4.1 Header Information
File Format
The format of the file on disk. TOA5 is an ASCII format. TOB1 is a Binary
format.
Station Name
The station name set in the logger that the data was collected from.
Logger Model
The datalogger model that the data was collected from.
Logger Serial Number
The serial number of the logger that the data was collected from. This is the
serial number of the CR800 CPU.
Operating System Version
The version of the operating system in the logger that the data was collected
from.
Table Name
The data table name.
Field Name
The name of the field in the data table. This name is created by the CR800 by
appending underscore ( _ ) and a three character mnemonic for the output
processing (e.g., _AVG, _TOT, etc.).
Field Units
The units for the field in the data table. Units are assigned in the program with
the units declaration.
Field Processing
The output processing that was used when the field was stored.
Smp = Sample
Max = Maximum
Min = Minimum
Avg = Average
Field Data Type
This header line is only in TOB1 binary format and identifies the data type for
each of the fields in the data table.
UINT4 = Unsigned 4 byte integer
IEEE4 = 4 byte floating point
2-3
Commentaires sur ces manuels