Yacht Devices YDEN-02 Series, User Manual

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2.4. XDR Settings
The XDR sentence is used to transfer data from sensors, tanks, engines, etc.
This sentence contains the sensor’s text identifier (name), which was not defined
by NMEA Standard until end of 2018. This led to the invention of names by every
company on the market. For example, B&G uses «AIRTEMP» to send air temperature
data, OpenCPN software uses «TempAir», Maretron uses «ENV_OUTSIDE_T»,
and the NMEA 0183 Standard 4.11 defines «Air».
With these settings you can define names used in XDR to provide compatibility
with software or hardware. The length of the name is limited to 16 characters.
An empty name means that data will not be sent in XDR sentence.
3. NMEA 0183 and NMEA 2000 Message Filters
On the «NMEA Filters» page, you can block NMEA 2000 devices or selected
types of messages to or from applications or Web Gauges (for example, to exclude
the possibility to control the autopilot). These settings are usually not required,
and you can skip this chapter.
The Device has 14 filter lists which allow limiting the set of messages passed from
the NMEA 2000 network to a PC or mobile application (transmit filters) and messages
passed from the application to the NMEA 2000 network (receive filters).
Each NMEA server has four filter lists: two for incoming and outgoing NMEA
0183 messages, two for incoming and outgoing NMEA 2000 messages (used
for RAW protocol). Which filter is used depends on the server data protocol settings
defined on the «NMEA Servers » page. There are 12 filter lists in total.
The Device also has two «Global» filter lists, which define what NMEA 2000 messages
can be passed from the network to internal NMEA servers and what NMEA 2000
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