Campbell Scientific CR200/CR200X-series Dataloggers User Manual
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Appendix A. Glossary
Ohms Law
Describes the relationship of current and resistance to voltage. Voltage
equals the product of current and resistance (V = I*R).
on-line data transfer
Routine transfer of data to a peripheral left on-site. Transfer is controlled by
the program entered in the datalogger.
output
A loosely applied term. Denotes a) the information carrier generated by an
electronic sensor, b) the transfer of data from variable storage to final
storage, or c) the transfer of power from the CR200(X) or a peripheral to
another device.
output array
A string of data points output to Final Storage. Output occurs when the data
interval and data trigger are true. The data points which complete the Array
are the result of the Output Processing Instructions which are executed
while the Output Flag is set.
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, Maximum, Minimum, Average,
etc. The data sources for these Instructions are values in Input Storage. The
results of intermediate calculations are stored in Intermediate Storage. The
ultimate destination of data generated by Output Processing Instructions is
usually Final Storage but may be Input Storage for further processing. The
transfer of processed summaries to Final Storage takes place when the
Output Flag has been set by a Program Control Instruction.
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.
parameter
Used in conjunction with CR200(X) program Instructions, parameters are
numbers or codes which are entered to specify exactly what a given
instruction is to do. Once the instruction number has been entered in a
Program Table, the CR200(X) will prompt for the parameters by displaying
the parameter number in the ID Field of the display.
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