Maretron TLM100 User Manual download pdf (Page 21)

Revision 1.3 Appendix A – NMEA 2000

Interfacing Page A1

®®

Appendix A – NMEA 2000

Interfacing

TLM100 NMEA 2000

Periodic Data Transmitted PGNs

PGN 127505 – Fluid Level

The TLM100 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 TLM100

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 TLM100

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.

4: Tank Capacity – This field is used to indicate the tank capacity. This field is

programmable through the NMEA command PGN. The TLM100 ships from the

factory with a default value of 0xFFFFFFFF indicating “Data Not Available”.

5: Reserved – This field is reserved by NMEA; therefore, the TLM100 sets all bits to a

logic 1.

1 2 ... 16 17 18 19 20 21

No comments

Maretron TLM100 User Manual Page 21