4. External sensors
The Device can take temperature and pressure data from external NMEA 2000 sensors
and send them as engine data. The data can also be used to generate engine alerts. The
syntax of the command is:
YD:sensor [instance | OFF]
Where the “sensor” can be: CLNT_T – coolant temperature, CLNT_P – coolant
pressure, OIL_T – engine oil temperature, OIL_P – engine oil pressure, BOOST –
boost pressure, FUEL_P – fuel pressure. The factory setting for all sensors is OFF.
“Instance” is a number from 0 till 253, it is NMEA 2000 data instance of the sensor,
do not confuse this with the data source. For example, you may have two temperature
sensors with the data source 13 (Freezer Temperature), and instances 0 and 1. These
can be interpreted as first and second freezers, or port and starboard freezers.
For temperature and pressure data, most of MFDs usually displays data with the
instance 0 only. For example, your thermometer’s data source is configured to “Air
Temperature”. In this case, you can use an instance between 1 and 253 to “hide” this
sensor from the MFD.
For example, to configure the Yacht Devices Digital Thermometer YDTC-13 as a
coolant temperature sensor, type the first command in thermometer properties, and
the second command in the Gateway’s properties (instance 10 was randomly choosen):
YD:DAT 10
YD:CLNT_T 10
— 24 —
