METEK GmbH uSonic-2 27
4.2.3 Assignment of variables to the analog output
The 4 analog output ports C1…C4 can display different values. The following
index shows the supported values:
horizontal wind speed
(scalar averaged)
0 ... 539 °
bzw.
-90 ... 449 °
wind direction (with hysteresis)
The command OA (Output Analog) configures the variables which are displayed
on the analog output ports. Following settings are possible:
OA=1: Port 1: x: Range determined by command VR
Port 2: y: Range determined by command VR
OA=2: Port 1: v: Range determined by command VR
Port 2: d: 0° ≙ setting AO
360° ≙ maximum value
OA=3: Port 1: v: Range determined by command VR
Port 2: dh: 0° ≙ setting AO
+270° ≙ (maximum value – AO)/2
540° ≙ maximum value
4.2.3.1 Test values OA=32
The analog output ports can be checked with test values. With OA=32 the analog
output signals are fixed to constant values. The level of the signals depends on
the hardware configuration of the uSonic-2 (0 … 2.5 VDC or 0... 5 VDC or 0...10
VDC) and on the commands TV and AO.
The possible setting of TV is 0…100 (%). An additional function of this command
is TV=101, see below in this chapter.