1 pulses measured, 2 pulse-input channels, Figure 7: pulse-sensor output signal types – Campbell Scientific CR800 and CR850 Measurement and Control Systems User Manual
Page 39: Table 2. pulse-input channels and measurements
Section 4. Quickstart Tutorial
39
Note A period-averaging sensor has a frequency output, but it is connected to a
single-ended analog input channel and measured with the PeriodAverage()
instruction (see Period Averaging
(p. 307)
).
4.1.3.3.1 Pulses Measured
Figure Pulse Sensor Output Signal Types
(p. 39)
illustrates three pulse sensor output
signal types.
Figure 7: Pulse-sensor output signal types
4.1.3.3.2 Pulse-Input Channels
Table Pulse-Input Channels and Measurements
(p. 39)
lists devices, channels and
options for measuring pulse signals.
Table 2. Pulse-Input Channels and Measurements
Pulse-Input
Channel
Input Type
Data Option
CRBasic
Instruction
P1, P2
•
High-frequency
•
Low-level ac
•
Switch-closure
•
Counts
•
Frequency
•
Run average
of frequency
PulseCount()
C1, C2, C3, C4,
C5, C6, C7, C8
•
High-frequency
•
Switch-closure
•
Low-level ac
(with LLAC4
Low-Level AC
Conversion
Module)
•
Counts
•
Frequency
•
Running
average of
frequency
•
Interval
•
Period
•
State
PulseCount()
TimerIO()