Progamming help with FSBus dll

[RobiD]

I moved the fuel pump switch to a different group and made sure they all worked right. Then I re-wrote the other switches file one switch at a time and tested it to make sure it wasn't affecting the fuel pump switch again and slowly but surely I rebuilt the file and it now works.

Not sure what the problem was, but it doesn't matter now.

Thanks again for your help.

David

[RobiD]

Hey Stefan,

Need your help again if your willing. (or anyone else who knows Fsbus dll well.

I am now programming my fuel, oil press, temp, amps and fuel pressure gauges (6 in all).

They are aircore (voltmeters) and there is no example in the documentation to use.

I am starting with Left fuel gauge. Offset is

0B7C

4

Fuel: left main tank level, % * 128 * 65536

I need an example calculation for this and then I should be able to work the other gauges out from there.

Stefan, I know you have helped me out lots with this and I can't begin to tell you how much it is appreciated. This thread will be very helpful to anyone like me who is learning FSBusdll. So I hope you can continue to help.

Thanks
David

[sgaert]

Hi,
do you have a picture of this Gauge?
I don´t know what Values you need as output.

Stefan

[RobiD]

Hi Stefan,

These are not the exact same but I bought them from this company and this is the closest they have now.

http://www.futurlec.com.au/Panel_Meters.jsp It's the ones down the bottom.

I have tested the meter in FSAdmin, and I'm getting no response using J3 Analogue out, but if I leave it plugged into J3 and press Auto in the Digital out, the LEDS I have connected to J5 light and the meter is randomly moved (hard, due to voltage) in there. I don't know if I'm missing something. I've followed the instructions in the DIO manual.

Thanks for helping.
David

[sgaert]

Did you connect a resistor and capacity to the circuit like on the schematic?

[RobiD]

Yes, I've tried with the 10uf cap and the 5k6 resistor and without.

[sgaert]

Ok than try other resistors to get a smooth movement wit the Analog Out fader.

[RobiD]

On the board in R4-R11 I have 1k resistors and caps in C8-C15.

Should these be there? I have no measurable voltage on the pins of J3.

[sgaert]

that is a PWM no Voltage you can measure. you need after J3 a low pass for you gauge.

[RobiD]

that is a PWM no Voltage you can measure. you need after J3 a low pass for you gauge.

I figured that is why I couldn't measure a voltage. So it is ok to have the 1k resistors and the caps on the board as well as the cap and resistor after J3.

If so, I have everything covered but no movement on the needle. You suggested changing the resistor after J3. What do you suggest I try at present, it's a 5k6. (Bear in mind that I didn't get any movement with or without the cap and resistor.