Output String According To Nmea 0183; Cr1000 Example Program - Campbell MMW-005 Instruction Manual

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Wire
White
Brown
Green
Clear
* Wiring valid for CR800 series, CR1000, and CR3000
**Com Port will vary depending on availability. Should be either of C2, C4, C6, or C8 of the CR1000

Output String According to NMEA 0183:

5.1.

CR1000 Example Program

6.
Table 1: Datalogger Connections
Function
Power
Power Reference
Output Transmit
Shield
NMEA B = GREEN
Baud rate = 4800
Data bits = 8
Stop bits = 1
Parity = none
Format: $WIMWV,ddd,R,ss.s,M,A<CR><LF>
Description:
$ = Start of sentence
WI = Device type: Weather Instruments
MWV = Wind speed and direction
ddd = Wind direction value [0..359º]
R = Relative to the vessel (not applicable)
ss.s = Wind speed value [0..25.5 m/s]
M = Unit for wind speed [m/s]
A = Data always valid for MMW-005
The MMW-005 is measured with the use of a datalogger
Control Port. The Control Port receives the RS422 data string
that the MMW-005 automatically sends approximately once per
second. RS422 is an Electronics Industries Association (EIA)
recommended standard to extend the RS232 50 foot limit. In
this configuration it provides for unidirectional data
transmission.
The default units of measure are degrees (wind direction) and
meters per second (wind speed). If other units are required
then the measurements will need to be manipulated in the
datalogger program. The following example shows the
MMW-005 Solid State Wind Sensor
Datalogger Connection*
+12V
G
Rx terminal of Com Port**
G