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Command AN
T <id>AN<para5> Analog output mode (Analog output)
Access User mode
Description: Sets the mode for output of the analog wind direction (WD) and wind velocity (WV).
This command can be used to switch between the current output and voltage output.
Any change in the value always relates to both outputs (WD and WV) simultaneously.
The output value range can be selected with the Command SC. It is either 0..20mA
(0..10V) or 4..20mA (2..10V): see Command SC
The command can only be changed when the mode half duplex is selected: see
Command DM
Parameter description:
0: Voltage output
1: Current output
2: Analog outputs are not used. Internal calculation and output of the analog
values is switched off completely when AN=2 is set and with AA=AB=AC=0.
Range of values 0... 2
Initial value: 0
Command AO
T <id>AO<para5> Scaling of analog wind direction output (Angle Output)
Access: User mode
Description: With analog output of the wind direction scaling can be selected in which the angle is
output. To preserve compatibility with existing systems it is sometimes necessary to
select an extended angle range. The ranges 0..360°, 0..540° and 0..720° are supported
here.
See also Command AN, Command DM, Command SC
Parameter description:
0: Output of angle in range 0..360° (0° is north)
1: Output of angle in range 0..540° (0° is west)
2: Output of angle in range 0..720° (0° is south);
Range of values 0... 2
Initial value: 0
Command AR
<id>AR<para5> Scaling of analog wind velocity output (Analog Range)
Access: User mode
Description: Specifies the range used for scaling of the analog wind velocity output. The standard
ULTRASONIC scales the wind velocity as follows:
0..10V (2..10V) corresponds to 0..60m/s
It may however also be sensible to scale the wind velocity of 0..30m/s:
0..10V (2..10V) corresponds to 0..30m/s
The end of the measuring range is specified with this parameter. Specification is made
in m/s.
Parameter description:
0..100: Specifies of the end of the measuring range of the wind velocity (WV).
If the command AR00045 is input for example, 10V or 20mA corresponds to a wind
velocity of 45m/s.