Expedition Navigation Software / N2K Pressure Sensors

**Posted by Lockie** 7/05/2024 3:20 am

Hi All,

We have some N2K pressure sensors sending pressure data over the N2K that we can read on the Zeus screens. They are currently in PSI. Does anyone know a way for Expedition to read these and then convert them to Kgs? We have a antisense so I am assuming I can see them somewhere.
The processor is a Hercules, and the pressure sensors are not read by it as far as I can tell.

**Posted by Nick** 7/05/2024 1:34 pm

They are probably sent in the 65293 PGN (HLA Load Cell).

**Posted by Lockie** 7/06/2024 8:22 am

Thanks Nick,
Is there anyway to Map them in Expedition to channels and do the maths to make the read in Kgs?

**Posted by Nick** 7/06/2024 12:53 pm

If that is what they are, then it is already done. You just need to enable that PGN.

**Posted by rvsail** 7/08/2024 12:58 am

Not sure there is any way of "doing the maths" within EXP.

Nick, would it be possible to have a "derived variables" ability in EXP?
Where we could do some maths with variables like:
* take two variables and add / subtract / multiply them together
* multiply a variable by a constant to change units or give it a calibration factor manually?

just pretty basic maths stuff