7.3 WindSonic4 wiring
The WindSonic4 interfaces to a Campbell Scientific data logger using SDI-12 (
(p. 8)).
Table 7-1: WindSonic4 to data logger connections
Description
Color
Data logger
SDI-12 Data
Green
C, SDI-12,
U configured for SDI-12
1
SDI-12 Power
Red
12V
SDI-12 Reference
Black
G
Shield
Clear
⏚
(analog ground)
1
U and C terminals are automatically configured by the measurement instruction for Campbell Scientific CR6 data
logger.
To use more than one sensor per data logger, either connect the different sensors to different
terminals on the data logger or change the SDI-12 addresses of the sensors and wire them to the
same terminal. Each SDI-12 sensor connected to the same terminal must have a unique SDI-12
address. The factory-set address for the WindSonic4 is 0. Possible addresses are a number from 0
to 9. Using unique SDI-12 addresses reduces the use of terminals on the data logger and allows
sensors to be connected in a daisy-chain fashion that can minimize cable runs in some
applications. At a 1 Hz measurement rate, a maximum of four WindSonic4s can be measured by a
data logger.
For the CR6 and CR1000X, triggering conflicts may occur when a companion terminal is used for
a triggering instruction such as
TimerInput()
,
PulseCount()
, or
WaitDigTrig()
. For
example, if the WindSonic4 is connected to C3 on a CR1000X, C4 cannot be used in the
TimerInput()
,
PulseCount()
, or
WaitDigTrig()
instructions.
7.4 Data logger programming
Short Cut is the best source for up-to-date programming code for Campbell Scientific data
loggers. If your data acquisition requirements are simple, you can probably create and maintain a
data logger program exclusively with Short Cut. If your data acquisition needs are more complex,
the files that Short Cut creates are a great source for programming code to start a new program
or add to an existing custom program.
NOTE:
Short Cut cannot edit programs after they are imported and edited in CRBasic Editor.
WindSonic4 Two-Dimensional Sonic Anemometer
8