Young Ultrasonic Anemometer Heated Model 85004 - Manual (Page 8)

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parameters are automatically changed. This may change the baud
rate from its current setting. See section 6.4.2 for details on which
parameters are altered.
Although new parameter values are stored immediately when the
command is issued, they do not take effect until the sensor enters
OPERATE MODE.
COMMAND DESCRIPTION
SET01nn Set OUTPUT MODE
01 Enable voltage output
02 Enable RS-232
04 Enable RS-485 full duplex
08 Enable RS-485 half duplex
16 Enable RS-485 output only
SET02nn Set OUTPUT FORMAT
01 RMYT (default)
02 ASCII
03 ASCII POLLED
04 NMEA
05 SDI-12 CONTINUOUS
06 SDI-12 STANDBY
SET03nn Set BAUD RATE
12 1200
48 4800
96 9600
38 38400
SET04nn Set ASCII WS UNITS
01 MPH
02 KNOTS
03 KMPH
04 M/S
SET05c ASCII character sensor address (0-9, A-Z, a-z)
SET06nnn Wind speed threshold for polar output (cm/s)
SET07nnnnn Wind speed scale (nnnnn/10000)
SET08nnnnn Direction offset (±nnnnn degrees x 10)
SET09nn Damping factor
SET10nnn Output delay (0-999 x 8.192 milliseconds)
SET11nn Direction VOUT (36=0-360, 54=0-540 degrees)
SET12nn Sample count (00=auto or 03-31)
SET13nn ASCII and Vout format (00=polar, 01=UV)
SET14nn Vout Status Code (1=none, 2=0V, 3=FS)
CALnn Force Vout (00=0V, 01=5V)
XX Go to OPERATE MODE
RPT Report parameter settings
?? Help list
6.4 COMMAND DETAILS
6.4.1 SET01nn SET OUTPUT MODE
This parameter independently enables and disables voltage output,
RS-232, and RS-485 connections. For example, to enable voltage
output, RS-232, and RS-485 full duplex, add the code for each one:
01 + 02 + 04 = 07, SET0107. To enable only RS-232: SET0102. If
RS-485 is used, choose only one RS-485 option (04, 08, or 16). See
section 6.3 for codes.
To reduce power consumption, enable only those outputs that are
needed. When SDI-12 format is selected with the SET02nn com-
mand, voltage output, RS-232, and RS-485 connections are disabled
and SDI-12 is enabled.
6.4.2 SET02nn SET OUTPUT FORMAT
This parameter determines the serial output data format. See section
5.0 for operational details. When selecting some formats, parameters
are automatically changed as listed below:
FORMAT ADDITIONAL
CODE PARAMETERS CHANGED
01 RMYT BAUD = 9600
OUTPUT MODE = 07
THRESHOLD = 25 cm/s
OUTPUT DELAY = 01
SAMPLE COUNT = 31
02 ASCII
03 ASCII POLLED None
04 NMEA BAUD = 4800
OUTPUT MODE = 19
THRESHOLD = 25 cm/s
OUTPUT DELAY = 122
SAMPLE COUNT = 31
05 SDI-12 CONT
06 SDI-12 STANDBY 1200 baud
Both SDI-12 settings automatically disable voltage output, RS-232,
and RS-485 connections. With either POLLED ASCII or SDI-12
STANDBY, set the Damping Factor to 0 (see section 6.4.9).
6.4.3 SET03nn SET BAUD RATE
All RS-232 and RS-485 communication use the baud rate set with
this parameter. Power consumption is affected by this setting since
it influences communication duration.
6.4.4 SET04nn SET ASCII WIND SPEED UNITS
Sets wind speed units for ASCII, ASCII POLLED, and SDI-12 polar
outputs only.
6.4.5 SET05c SET POLL ADDRESS CHARACTER
Sets the sensor address for ASCII POLLED and SDI-12 formats. The
default is '0' (ASCII 48).
6.4.6 SET06nn SET WIND SPEED THRESHOLD
Sets the wind speed threshold for polar outputs (wind speed and
direction) to suppress scattered wind direction indications in calm
air. Winds below the threshold are reported as zero, wind direction
is held at last value when wind speed was above threshold. Set
threshold in centimeters per second (m/s x 100). The default setting
is 25 cm/s (0.25 m/s, 0.56 mph).
6.4.7 SET07nnnnn SET WIND SPEED MULTIPLIER
All wind speed measurements are multiplied by this parameter. The
default value is 10000 for a multiplier of 1.0000. This may be used to
individually calibrate each sensor for improved accuracy.
6.4.8 SET08nnnnn SET WIND DIRECTION OFFSET
Use this parameter to add or subtract a wind direction offset. Value
is degrees x 10 and may be positive or negative. Wind direction is
always re-scaled to a 0-360 range after offset is applied. The default
value is 00000.