Campbell CR6 Series, Руководство оператора

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Section 8. Operation
500
Line 2 – Data Field Names
Lists the name of individual data fields. If the field is an element of an array,
the name will be followed by a comma-separated list of subscripts within
parentheses that identifies the array index. For example, a variable named
“values” that is declared as a two-by-two array, i.e.,
Public Values(2,2)
will be represented by four field names: “values(1,1)”, “values(1,2)”,
“values(2,1)”, and “values(2,2)”. Scalar (non-array) variables will not have
subscripts.
Line 3 – Data Units
Includes the units associated with each field in the record. If no units are
programmed in the CR6 CRBasic program, an empty string is entered for that
field.
Line 4 – Data-Processing Descriptors
Entries describe what type of processing was performed in the CR6 to
produce corresponding data, e.g., Smp indicates samples, Min indicates
minima. If there is no recognized processing for a field, it is assigned an
empty string. There will be one descriptor for each field name given on
Header Line 2.
Record Element 1 – Timestamp
Data without timestamps are usually meaningless. Nevertheless, the
TableFile() instruction optionally includes timestamps in some formats.
Record Element 2 – Record Number
Record numbers are optionally provided in some formats as a means to
ensure data integrity and provide an up-count data field for graphing
operations. The maximum record number is &hffffffff (a 32-bit number),
then the record number sequence restarts at zero. The CR6 reports back to
the datalogger support software 31 bits, or a maximum of &h7fffffff, then it
restarts at 0. For example, if the record number increments once a second,
restart at zero will occur about once every 68 years (yes, years).
8.8.3 Memory Cards and Record Numbers
Related Topics:
• Memory Card (CRD: Drive) — Overview
(p. 86)
•
Memory Card (CRD: Drive) — Details
(p. 495)
•
Memory Cards and Record Numbers
(p. 500)
•
Data Output: Writing High-Frequency Data to Memory Cards
(p. 268)
• File System Errors
(p. 512)
•
Data Storage Devices — List
(p. 661)
•
Data File Format Examples
(p. 498)
• Data Storage Drives Table
(p. 492)