Campbell Scientific CR1000 Measurement and Control System User Manual
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Section 11. Glossary
461
output interval
The time interval between initiations of a particular data‐table record.
output processing instructions
Process data values and generate output arrays. Examples of output
processing instructions include Totalize(), Maximize(), Minimize(),
Average(). The data sources for these instructions are values in
variables. The results of intermediate calculations are stored in memory
to await the output trigger. The ultimate destination of data generated
by output processing instructions is usually final storage, but it may be
output to variables for further processing. The transfer of processed
summaries to final storage takes place when the output trigger is set to
True.
PakBus
A proprietary telecommunications protocol similar in concept to
internet protocol (IP). It has been developed by Campbell Scientific to
facilitate communications between Campbell Scientific instrumentation.
PakBus Graph software
Shows the relationship of various nodes in a PakBus network, and
allows for adjustment of many settings in each node. A PakBus node is
typically a datalogger, a PC, or a telecommunications device.
parameter
Argument or parameter? These terms are frequently interchanged, but
have a useful distinction. A parameter is part of a procedure (or
command) definition; an argument is part of a procedure call (or
command execution). An argument is place in a parameter. For
example, in the CRBasic command Battery(
dest
),
dest
is a parameter
and so defines what is to be put in its place. If a variable named
BattV
is
meant to hold the result of the battery measurement made by
Battery(),
BattV
is the argument placed in
dest
. Example:
Battery(BattV)
BattV
is the argument.
period average
A measurement technique utilizing a high‐frequency digital clock to
measure time differences between signal transitions. Sensors commonly
measured with period average include vibrating‐wire transducers and
water‐content reflectometers.