Section 7
Parameter Settings
41
FT742-SM (RS422 & RS485) Sensors
– User Manual
7.4 Command Parameters
Each command, and its usage, is described in the following Sections. All examples, other than where stated,
assume that the sensor Listener ID is set to 01, and the sensor TalkerID is set to WI, (Weather Instrument).
7.4.1
AM: Set or Query Anemometer Mount Orientation
Command
Parameter
AM
Command
Syntax
SET Sensor:
$<listenerID>,AM<orientation>*<checksum><cr><lf>
$aa,AMx*hh<cr><lf>
QUERY Sensor:
$<listenerID>,AM?*<checksum><cr><lf>
$aa,AM?*hh<cr><lf>
Sensor output:
$<talkerID>,AM=<orientation>*<checksum><cr><lf>
$aa,AM=x*hh<cr><lf>
Parameters
<orientation>
N
I
Set Normal orientation for mounting the sensor in ‘regular’ orientation
Set Inverted orientation for mounting the sensor ‘upside down’
Examples
Example 1
Set the anemometer mount orientation to inverted and verify the new setting:
Message
Comment
$01,AMI*//<cr><lf>
$01,AM?*//<cr><lf>
$WI,AM=I*4A<cr><lf>
Set Inverted orientation
Query orientation setting
Inverted orientation setting
Description
Use the AM command if changing the mounting of the anemometer between right way up and
upside down. In inverted orientation the sensor’s compass and wind direction readings will be
reversed to provide correct direction and heading output.
Note: This feature was introduced in software version V7.5
