Operating Manual V25/09.2019
Ventus / Ventus-X / V200A
Chapter 20 Appendix 47
20.5.5 Telegram Request (VDT)
Description: This command requests the VDT telegram.
Request: <ID>‘TR2’(CR)
<ID> Device address (2 decimal places with leading zeros)
Response: <STX>xx.x xxx xxx.x xx*xx <CR><ETX>
<STX> Start of Text (0x02)
xx.x Wind speed in m/s
xxx Wind direction °
xxx.x Air temperature (virt.) in °C signed +/-
xx Status as hex value (s. below)
* Check sum identifier
xx Check sum as hex value
<CR> Carriage Return (0x0D)
<ETX> End of Text (0x03)
Response in case of error
Request: <ID>‚TR2’(CR)
<ID> Geräteadresse (2-stellig dezimal mit führenden Nullen)
Response: <STX>FF.F FFF FFF.F xx*xx <CR><ETX>
<STX> Start of Text (0x02)
FF.F Wind speed not OK
FFF Wind direction not OK
FFF.F Air temperature (virt.) not OK
xx Status as hex value (s. below)
* Check sum identifier
xx Check sum as hex value
<CR> Carriage Return (0x0D)
<ETX> End of Text (0x03)
Example:
Request: 01TR2
Response: <ETX>00.2 163 +24.2 00*39
This means wind with 0,2 m/s from 163°, the air temperature is 24.2°C
Status:
Bit 0: Status wind measurement 0 = OK 1 = not OK
Bit 1: Status temperature measurement 0 = OK 1 = not OK
Bit 2 reserved 0
Bit 3 Heating 0 = off 1 = on
Bit 4 – 7 reserved 0
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