Pgn 130314 - Actual Pressure; Pgn 127505 - Fluid Level - Maretron MPOWER CLMD16 User Manual

___________________________________________________________
The state will be one of the following values:
"OFF" – The digital input voltage level is outside the range(s) programmed for "ON" levels
"ON" – The digital input voltage level is inside the range(s) programmed for "ON" levels
Please refer to Binary Event Monitor on page 22 for details
19 to 25: Indicates the state sensed by the digital input on input channel 2 to 8 respectively.
The CLMD16 uses this PGN to provide a regular transmission of various pressures. The factory
default for periodic transmission rate is once every two seconds. The transmission of this PGN can
be disabled (see PGN 126208 – NMEA Request Group Function – Transmission Periodic Rate).
Field 1: SID – The sequence identifier field is used to tie related PGNs together. For example, the
CLMD16 will transmit identical SIDs for 130312 (Temperature) and 130311 (Environmental
Parameters) to indicate that the readings are linked together (i.e., the data from each PGN
was taken at the same time although they are reported at slightly different times).
2: Pressure Instance – The CLMD16 sets this field to identify a particular pressure
measurement from the source specified in Field 3. Every pressure measurement from a
given source type on the network should have a distinct instance value, so that monitoring
devices and displays can identify which measurement is which.
3: Pressure Source – This field is used to indicate the type of pressure measurement being
taken. Possible values for this field include Atmospheric Pressure, Water Pressure, Steam
Pressure, Compressed Air Pressure, Hydraulic Pressure, and 16 User Defined pressure
sources.
4: Pressure – This field is used to indicate the pressure, whose source is specified in field 2, in
units of 0.1 Pa.
6: Reserved bits – The CLMD16 sets all bits in this field to a value of "1".
The CLMD16 uses this PGN to indicate the attached tank's fluid instance, fluid type, fluid level, and
tank capacity.
Field 1: Fluid Instance – This field is used to identify the tank number and ranges between 0 and
15. There can be up to 16 tanks of a given type as defined by the Fluid Type field. This field
is programmable through the NMEA command PGN. The CLMD16 ships from the factory
with a default value of zero.
2: Fluid Type – This field identifies the type of fluid contained within the tank. Currently the
defined fluid types are fuel, fresh water, wastewater, live well, oil, and black water. This
field is programmable through the NMEA command PGN. The CLMD16 ships from the
factory with a default value of 0x0 indicating "Fuel".
3: Fluid Level – This field is used to indicate the current fluid level in percentage. The value
transmitted in this field depends on the distance from the sender to the top of the fluid or
tank bottom.
PGN 130314 – Actual Pressure
PGN 127505 – Fluid Level
78