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Command AV
<id>AV<para5> Averaging period (Average)
Access: User mode
Description: This command can be used to specify the period over which the ULTRASONIC
averages its measured values. Given the high measuring speed of up to 4ms for the
generation of a measured value, the use of averaging is sensible in most cases.
Parameter description:
Parameter for AV Selected averaging time
0
No averaging
1
Averaging over 1s
2
Averaging over 10s
3
Averaging over 60s
4
Averaging over 120s
5
Averaging over 10min
6..60000
Averaging over n* 100ms, e.g. 00AV25 means
averaging over 2.5s
Table 8: Adjustment of averaging periods with parameter AV
The averaging memory is designed as a sliding memory. With every measurement the
measured value is provided with a time stamp. The mean value buffer is only so large
as data over the averaging period is contained in the memory.
On startup the data of the averaging memory are instantly valid. Averaging is
performed immediately using the measured values available as the quality of the
measured values is not achieved until a certain content level of the mean value buffer.
If an averaging period of AV0 is selected, the averaging period is calculated from the
selected output interval OR (see Command OR). The averaging period is calculated as
follows:
T [averaging period in 100ms] = OR/100
Range of values 0...60000
Initial value: 10
Command AY
<id>AY<para5> Scales the output value of the minimum value of the analogue input PIN WG/RXD-
(analogue channel A )
Access: User mode
Description: The measuring values of the analogue inputs can be output in scaled form. By means
of the command AY the output value is stated for 0V input voltage. The value for the
parameter AY is calculated as follows:
Parameter value = 30000+(reference value*10)
See also 7.2.1 and Command AZ
Command AZ
<id>AZ<para5> Scales the output value of the minimum value of the analogue input PIN WG/RXD-(
analogue channel A )
Access: User mode
Description: The measuring values of the analogue inputs can be output in scaled form. By means
of the command AZ the output value is stated for 9,96V input voltage. The value for the
parameter AZ is calculated as follows:
Parameter value = 30000+(reference value*10)
See also 7.2.1 and Command AY