Campbell CR1000 User Manual

Section 11. Glossary
Term. datalogger support software
Campbell Scientific software that includes at least the following functions:
o Datalogger telecommunications
o Downloading programs
o Clock setting
o Retrieval of measurement data
See Datalogger Support Software — Overview
(p. 95) and the appendix
Datalogger Support Software — List
(p. 654) for more information.
Term. data point
A data value which is sent to final-data memory
(p. 515) as the result of a data-
output processing instruction
(p. 512). Strings of data points output at the same
time make up a record in a data table.
Term. data table
A concept that describes how data are organized in CR1000 memory, or in
files that result from collecting data in CR1000 memory. The fundamental
data table is created by the CRBasic program as a result of the DataTable()
instruction and resides in binary form in main-memory SRAM. See the table
CR1000 Memory Allocation
(p. 371). The data table structure also resides in the
data cache
(p. 511), in discrete data files on the CPU:, USR:, CRD:, and USB:
memory drives, and in binary or ASCII files that result from collecting final-
data memory with datalogger support software
(p. 512).
Term. data-output interval
Alias: output interval
The interval between each write of a record
(p. 525) to a final-data memory data
table.
Term. data-output-processing instructions
CRBasic instructions that process data values for eventual output to final-data
memory. Examples of output-processing instructions include Totalize(),
Maximize(), Minimize(), and Average(). Data sources for these instructions
are values or strings in variable memory. The results of intermediate
calculations are stored in data-output-processing memory
(p. 512) to await the
output trigger. The ultimate destination of data generated by data-output-
processing instructions is usually final-data memory, but it may be diverted to
variable memory by the CRBasic program for further processing. The
transfer of processed summaries to final-data memory takes place when the
Trigger argument in the DataTable() instruction is set to True.
Term. data-output-processing memory
SRAM memory automatically allocated for intermediate calculations
performed by CRBasic data-output-processing instructions. Data-output-
processing memory cannot be monitored. See section Processing for Output
to Final-Data Memory
(p. 542) for a list of instructions that use Data-output-
512

Campbell CR1000 Specifications

General

Power Requirements	9.6 to 16 VDC
Data Logger Operating System	CRBasic
Memory	4 MB
Analog Inputs	16 single-ended or 8 differential
Analog Input Resolution	13 bits
Analog Input Range	+/-2.5V
Digital I/O	8
Pulse Counters	2
Communication Ports	RS-232
Operating Temperature	-25°C to +50°C
Pulse Channels	4