FBW Fuel Pumps

[kingm56]

Paul,

First, I hope you're doing well.  When Time permits, I hope to leverage your expertise.  I’m writing managed C# code that communicates through FSUIPC. My goal is to toggle the fuel pumps using the MSFS event ELECTRICAL_BUS_TO_CIRCUIT_CONNECTION_TOGGLE (event ID 67076). However, I’m unsure about the correct second parameter to send in order to toggle the specific fuel pump switch(es). 

FBW API states:

The individual pumps are controlled via circuit connections. The corresponding circuit connection numbers are as follows:

Fuel and Trim Tank CIRCUIT CONNECTION NUMBERS
|    | 2  | 3  | 64 | 65 |    |    | 66 | 67 | 68 | 69 |    |   
| 70 | 71 | 72 | 73 | 74 |    |    | 78 | 79 | 76 | 77 | 75 |
|    |    |    |    |    | 80 | 81 |    |    |    |    |    |
Example Reverse Polish Notation (RPN) for Fuel Pump Circuit Connection
2 1 (>K:2:ELECTRICAL_BUS_TO_CIRCUIT_CONNECTION_TOGGLE)

 

I'm every, I'm unable to manipulate the switches via SendControlToFS with appropriate ID method.  I assume my value is incorrect.  Again, I would appreciate your expertise, when/if ime permits. 

[Paul Henty]

This control needs two parameters: the index of the source bus and the index of the circuit you want to connect to. (The 2 and 1 in the example code you posted).

I don't think it's possible with FSUIPC to send two parameters to an event. Historically they've only allowed one.

There are two alternative options I know of:

1. Use the MSFSVariableServices class to execute the calculator code directly:

MSFSVariableServices.ExecuteCalculatorCode("2 1 (>K:2:ELECTRICAL_BUS_TO_CIRCUIT_CONNECTION_TOGGLE)");

There is an example project for getting started with MSFSVariableServices on the website:

http://fsuipc.paulhenty.com/#downloads

 

2. Use the 'presets' feature to execute the calculator code stored in the myevents.txt file. See the "FSUIPC7 for advanced users" pdf and offset 0x7C50.

Paul