FT Technologies acures FT722 - CF: Set or Query the Wind Datum Offset Angle

Section 6 Parameter Settings
63 FT722 & FT742 (RS485) – FF & PM Sensors – User Manual
6.4.6 CF: Set or Query the Wind Datum Offset Angle
Command
Parameter
CF
Command
Syntax
SET Sensor:
$<listenerID>,CF<offset>*<checksum><cr><lf>
$aa,CFxxx.x*hh<cr><lf>
QUERY Sensor:
$<listenerID>,CF?*<checksum><cr><lf>
$aa,CF?*hh<cr><lf>
Sensor Output:
$<talkerID>,CF=<mode>,<status>,<offset>,<offset>*
<checksum><cr><lf>
$aa,CF=c,c,xxx.x,xxx.x*hh<cr><lf>
Parameters
<offset>
000.0 to 359.9
Applying an offset electronically rotates the datum direction of the
sensor in a counter clockwise direction (when looking down from
above).
(000.00 is Factory Default Setting)
<mode>
D
Always returns D
<status>
D
Always returns D
Examples
Example 1
The datum direction of the sensor is rotated by 5° to the left with respect to the sensor’s
mounting surface (as per Section 3).
Message
Comment
$01,CF355.0*//<cr><lf>
Set offset angle to 5°
$01,CF?*//<cr><lf>
Query parameters
$WI,CF=D,D,355.0,355.0*26<cr><lf>
Sensor output
Example 2
The datum direction of the sensor is rotated 5° to the right with respect to the sensor’s
mounting surface (as per Section 3).
Message
Comment
$01,CF005.0*//<cr><lf>
Set offset angle to 5°
$01,CF?*//<cr><lf>
Query parameters
$WI,CF=D,D,005.0,005.0*26<cr><lf>
Sensor output
Description
Use the CF command to set the sensor wind datum direction offset.
WARNING: Once set, the offset value
is retained within the non-volatile
memory. If the sensor’s location is
changed then the offset value must be
changed to suit the new installation or
set to zero otherwise incorrect wind
direction readings will be obtained.