Hi,I can't make the following Hydraulic Switch able to pressurize the Hydraulic Brake Pressure indicator and if there's somebody so kind, to give me a hand to solve this problem I'll finish to bang my head in the wall.Hydraulic Brake Pressure:<Gauge Name="Hyd_Brake_Press" Version="1.0"> <Image Name="Hyd_Press_Back.bmp" Bright="Yes" ImageSizes="256,256,0,0" /> - <Element> <Position X="128" Y="128" /> - <Image Name="Hyd_Press_ND.bmp" PointsTo="East" Bright="Yes" ImageSizes="80,143,0,0"> <Axis X="40" Y="40" /> </Image>- <Rotate> <Value Minimum="0" Maximum="300">(A:Circuit general panel on,bool) if{ (A:Hydraulic4 pressure, psf) 0.9500 * } els{ 0 }</Value> - <Failures> <SYSTEM_ENGINE Action="0" /> </Failures>- <Nonlinearity> <Item Value="0" X="239" Y="127" /> <Item Value="300" X="14" Y="127" /> </Nonlinearity> <Delay DegreesPerSecond="5" /> </Rotate> </Element>- <Mouse> <Help ID="HELPID_GAUGE_HYDRAULIC_PRESSURE" /> </Mouse> </Gauge>Hydraulic Pump switch: <Gauge Name="Hyd_Pump_Sw" Version="1.0">- <Element>- <Select> <Value>(L:Hydraulic Switch,bool) if {(A:Hydraulic4 Pressure,psf)}</Value> - <Case Value="0"> <Image Name="Pump_OFF.bmp" ImageSizes="25,57" /> </Case>- <Case Value="1"> <Image Name="Pump_ON.bmp" ImageSizes="25,57" /> </Case> </Select> </Element>- <Mouse> <Help ID="HELPID_GAUGE_HYDRAULIC_PRESSURE" /> <Cursor Type="Hand" /> <Click>(L:Hydraulic Switch,bool) ! (> L:Hydraulic Switch,bool)</Click> </Mouse> </Gauge>Thanks in advanceGianfranco

Gianfranco,This is not tested but it's like my hydraulic setup with one exception. You use PSF whereas I use PSI.- Code-Hydraulic Pressure Gauge.<Gauge Name="Hyd_Brake_Press" Version="1.0"><Image Name="Hyd_Press_Back.bmp" Bright="Yes" ImageSizes="256,256,0,0" /> <Element> <Position X="128" Y="128" /><Image Name="Hyd_Press_ND.bmp" PointsTo="East" Bright="Yes" ImageSizes="80,143,0,0"><Axis X="40" Y="40" /></Image> <Rotate><Value Minimum="0" Maximum="300">(L:Hydraulic Switch,bool) if{ (A:Hydraulic4 pressure, psf) 0.9500 * } els{ 0 }</Value><Failures><SYSTEM_ENGINE Action="0" /></Failures><Nonlinearity><Item Value="0" X="239" Y="127" /><Item Value="300" X="14" Y="127" /></Nonlinearity><Delay DegreesPerSecond="5" /></Rotate></Element> <Mouse><Help ID="HELPID_GAUGE_HYDRAULIC_PRESSURE" /></Mouse></Gauge>Hydraulic Switch.<Gauge Name="Hyd_Pump_Sw" Version="1.0"> <Element> <Select><Value>(L:Hydraulic Switch,bool) 0==</Value> <Case Value="0"><Image Name="Pump_OFF.bmp" ImageSizes="25,57" /></Case> <Case Value="1"><Image Name="Pump_ON.bmp" ImageSizes="25,57" /></Case></Select></Element> <Mouse><Help ID="HELPID_GAUGE_HYDRAULIC_PRESSURE" /><Cursor Type="Hand" /><Click>(L:Hydraulic Switch,bool) ! (>L:Hydraulic Switch,bool)</Click></Mouse></Gauge>Douglas

hi,Tank you Douglas for your replay but this way the electric pump doesn't work. I think that the problem is to connect the switch with the pressure gauge.The pressure gauge with this code indicates the pressure of an Engine Driven Pump working only when engines are running but my target is to have an electric hydraulic pump able to work at ramp with engines shut.Thanks again Gianfranco

Do you have your aircraft.cfg set up for electric hydraulic pumps?electric_pumps=1The number of electric hydraulic pumps the aircraft is configured with. Airbus A321( electric_pumps = 0 )Boeing 737-800( electric_pumps = 1 )

Do you have your aircraft.cfg set up for electric hydraulic pumps?electric_pumps=1The number of electric hydraulic pumps the aircraft is configured with. Airbus A321( electric_pumps = 0 )Boeing 737-800( electric_pumps = 1 )

Yes ,my plane is RFP747 and I set Electric_ pumps=1 in the aircraft.cfgGianfranco

Hi,as I said in my previous posts I would like to compile an Hydraulic Pressure gauge activated by a switch when the plane is at ramp with engines shut.I obtained an instrument working by a switch when engines are not running but I cheated because I used a voltmeter disguised as a Brake pressure indicator.The result is the same,you can see the needle of this instrument moving and it looks like a working Brake pressure gauge, but my problem remains: how it's possible within FS9 obtain a real .XML Brake pressure gauge working on ground when the engines are shut?All explanations are welcomeGianfranco

You have to define an electric pump in the aircraft's configuration.

Is there an echo in here? I just stated that in reply #4...In reply #5 it was confirmed that the entry was made in the aircraft.cfg file, and still does not work... :(

he 737-1/200 had system A powered by the two Engine Driven Pumps (EDP's) and system B powered by the two Electric Motor Driven Pumps (EMDP's). There is also a Ground Interconnect switch to allow system A to be powered when the engines are shut down. Similar to the 707. We did not have a APU so the Interconnect would only operate when the GPU was hooked up.I think this is what he is after but the problem is how can the AUX or Electric Hyd pumps be linked using xml. I have looked but have not found an Avar for the electric pumps. It should be like (A:Electric hydraulic2 pump,psi). Like for example I can see the pressure of the engine driven pumps in a string or gauge<String>%((L:Hydraulic Pump2, bool) if{ (A:HYDRAULIC2 PRESSURE,psi) 6 / } els{ (A:HYDRAULIC2 PRESSURE,psi) })%!4d!</String> How can the same be projected for the Electrical Hydraulic pumps.The little schematic reflects the makeup of this gauge.

Hi Douglas,if I'm understanding properly you are saying what I,being afraid, supposed about Electric Hydraulic pumps:Microsoft did the .XML software to compile gauges only for the Mechanic engine driven hydraulic pumps and forgot completely the electric ones.I'm looking at your beautiful drawing but I suggest you to put a Ground Safety Relay on the pump electric power line to permit only on the ground the pump work.I'm running FS9 maybe Microsoft has made this update on FSX otherwise we have only to hope in the next future.Cheers Gianfranco