Operating Manual V25/09.2019
Ventus / Ventus-X / V200A
Chapter 12 Configuration and Test 27
Counts of measurements:
Number of measured values used for determining the statistical values
of average, minum value and maximum value
default: 10
Relative Humidity Assumed average value of relative humidity, used for the calculation
of air density
12.2.9 Analog outputs
Figure 14: Analog Outputs
Note: The analog outputs can only be used if the RS485 interface is operated in half duplex
mode and the UMB binary protocol is used
For both analogue outputs the following parameteres are available:
Enable: off: the output is not used
current: the output is used as a current output
voltage: the output is used as a voltage output
frequency: the output is used as a frequency output
(only output 1)
default: off
Channel number: Number of the measurement channel whose values shall appear
default: 400 (output 1), 500 (output 2)
Min. and max. current / voltage / frequency:
analogue limitations of the analogue output
default: 4 – 20 mA
Min. and max. value: digital limitations of the analogue output
default: 0 – 90 m/s
Error current: Current that is delivered in case of an error
default: 2mA
Voltage (if used as frequency output):
Voltage that represents the high states of the frequency
default: 5V
Example:
The wind speed of 0 – 90 m/s is generated as 4 – 20 mA.
A speed of 20 m/s is therefore generated as
(20mA-4mA) / (90m/s-0m/s) * 20m/s + 4mA = 7,56mA
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