[CA] [CA11] Axiom 9 will not display both fuel tanks

[jwasko]

Hope you don't mind if I jump in, but I recently installed a Mercury Smartcraft N2000 gateway on my vessel and found similar behavior. All of the twin engine data displayed correctly on my e165's and i70s' but the fuel tank levels did not.

I discovered a note in the Gateway protocol description that I think explains the behavior. Per the note, the gateway transmits data for 2 tanks for each engine. Tank 1 for each engine is type fuel and tank 2 is not available. Instance numbers are 0 and 1 for starboard and 2 and 3 for port.

So, if you configure the mfd for 2 tanks, the starboard tank will be shown as port on the mfd (instance 0) and the starboard tank will not be found (instance 1).

If anyone knows how to change the gateway instance numbers, I would be most appreciative!
Jim