CR1000 Manual - Campbell Scientific

200
Section 7. Installation
Table 37. Parameters for Analog Burst Mode (601 to 2000 Hz)
CRBasic
Analog
Voltage
Input
Parameters
Destination
Repetitions
Voltage Range
Single-Ended
Channel
Differential
Channel
Measure Offset
Measurements
per Excitation
Reverse Ex
Rev Diff
Settling Time
Integ
Multiplier
Offset
Description when in Burst Mode
A variable array dimensioned to store all measurements from a single channel.
For example, the command,
Dim FastTemp(500)
dimensions array FastTemp() to store 500 measurements (one second of data at
500 Hz, one-half second of data at 1000 Hz, etc.)
The dimension can be any integer from 1 to 65535.
The number of measurements to make on a single channel. This number
usually equals the number of elements dimensioned in the Destination array.
Valid arguments range from 1 to 65535.
The analog input voltage range to be used during measurements. No change
from standard measurement mode. Any valid voltage range can be used.
However, ranges appended with 'C' cause measurements to be slower than
other ranges.
The single-ended analog input channel number preceded by a dash (-). Valid
arguments range from -1 to -16.
The differential analog input channel number preceded by a dash (-). Valid
arguments range from -1 to -8.
No change from standard measurement mode. False allows for faster
measurements.
Must equal the value entered in Repetitions
No change from standard measurement mode. For fastest rate, set to False.
No change from standard measurement mode. For fastest rate, set to False.
Sample interval in µs. This argument determines the measurement rate.
500 µs interval = 2000 Hz rate
750 µs interval = 1333.33 Hz rate
Ignored if set to an integer. _50Hz and _60Hz are valid for AC rejection but are
seldom used in burst applications.
No change from standard measurement mode. Enter the proper multiplier.
This is the slope of the linear equation that equates output voltage to the
measured phenomena. Any number greater or less than 0 is valid.
No change from standard measurement mode. Enter the proper offset. This is
the Y intercept of the linear equation that equates output voltage to the
measured phenomena.
7.8.13 String Operations
String operations are performed using CRBasic string functions, as listed in String
Functions (p. 502).
236