Lufft V200A-UMB User Manual

Operating Manual V25/09.2019 Ventus / Ventus-X / V200A
Chapter 20 Appendix 54
20.5.19 North Correction of the Wind Direction
Description: This command is used to set the north correction of the wind direction. This allows
to adjust to sensor installation deviations.
Request: <ID>‘NC’<value>(CR)
<ID> Device address (2 decimal places with leading zeros)
<value> 0 … 360 Correction value in °
The current setting is delivered as the response if no entry is made for <value>.
Response: !<ID><value>(CR)
20.5.20 Control line trigger property
Description: This command is used to set the trigger property when independent telegram
transmission (TT) is enabled. If when enabling the function the heating control setting is 3 or 4
(control via control line), this (automatically) switches to 1.
Request: <ID>‘TG’<value>(CR)
<ID> Device address (2 decimal places with leading zeros)
<value> 0: Disabled/heating control
1:Telegram transmission triggered on rising edge of control voltage
2:Telegram transmission triggered on falling edge of control voltage
3:Telegram transmission while control voltage is “high”
4:Telegram transmission while control voltage is “low”
The current setting is delivered as the response if no entry is made for <value>.
Response: !<ID>‘TG’<value>(CR)
20.5.21 Software reset
Description: This command is used to trigger a software reset
Request: <ID>‘RS1’(CR)
<ID> Device address (2 decimal places with leading zeros)
Response: !<ID>‘RS’<value>(CR)
20.5.22 Switchover to binary protocol
Description: This command is used to temporarily switch over to UMB protocol. If the
switchover is to be permanent, the sensor must be configured accordingly with the aid of the
UMB-Config-Tool.
Request: <ID>‘XX’(CR)
<ID> Device address (2 decimal places with leading zeros)
Response: ‘!’<ID>‘XX’(CR)
20.5.23 CRC Calculation
The CRC is calculated in accordance with the following rule:
The check sum is exclusive or an (XOR) of all characters of the telegram including the
separators ´,´ but excluding ´$´ and ´*´. The hexadecimal value of the upper and lower 4 bits of
the result are converted into two ASCII characters (0-9,A-F) for transmission. The high byte is
transmitted first.
Further information on the description of a CRC calculation is available in the NMEA 0183
protocol.

Lufft V200A-UMB Specifications

General

Brand	Lufft
Model	V200A-UMB
Category	Accessories
Language	English