OK... I have looked at the FSUIPC and documentation and I see that there are variables for fuel flow, oil pressure, etc., but there are no variables (that I can find) that say whether or not a particular annunciator is set. I have the FSBus LED board and want to drive actual lights for AUTOFEATHER, LOW FUEL, GENERATOR, etc. That being the case, I image that some programming would have to happen that would set the annuciator (light the LED) when a certain threshold is reached. How can this be done? Since these are obviously values that FS sets why wouldn't Peter make them accesable?I apologize if I am missing something obvious... Is it possible to do what I am looking to do?

Examples.Autofeather is just one set in FSUIPC. You look after that value. If it is set, then led lights. If it is off, then led is off. It just follow switch positions. I think same if for generators (no FSUIPC SDK in this computer, so i can't check it)For Low Fuel. You have to look what is low fuel limit. When fuel drops below that limit. You switch led on...I use this for my gear leds. When gear value is 16385 it turn green led on. This is gear down and locked position. When gear value is between 1 and 16384 i turn led red on. Remeber that gree led value was 16385, so green is already off. So when gears are in transit red led lights. When gear gets value 0 what means fully up, red turns off too. Now my all gear leds are off and gears are fully up.- J

Thanks... My confusion lies in where do I set the values that set the threshold for turning on the LED? I have looked at the fsbus.ini file, but don't really understand it.Also - I do not see Master Caution as a variable in FSUIPC... does anyone know how to set that annunciator?

G'day Mitch, Your problem is simply looking closely at the screen where the LED is defined, There are two fields that you have to fill in "Min:" & "Max:" Values, these are what you need to know, these values can be got from FSUIPC but another good way is to define a display & watch the value there, then put the upper & lower limits of the value into the LED screen that defines when the LED is on, if you want it off between those values then tick "Invert:"Another good way to get these values is to use FSInterrogate.exe this pragram comes with the FSUIPC_SDK & is free.Regards Glenn.

Mitch, I just did a quick search at the FSUIPC support forum for you & have found an answer to the MASTER CAUTION lamp, Pete says that there is no output of the master caution lamp from the sim & that it is probably made to come one when one or a combination of thing happen, when you think about it that makes alot of sense because there are many things that should make the master caution lamp light & this would have to be handled specific to the aircraft you are flying, I am not sure exactly what things are monitored in a real aircraft to activate the master caution lamp but things maybe like airspeed, Generator is on or off, Fuel Flow etc.I guess master caution monitors critical things that require the aircraft to stay in the air.You should be able to acheive that with FSBus as an LED can be routed to more than one destination in FS.Cheers Glenn.

Thanks Guys!Thats answered a big question I've been thinking about lately too!Cheers,

But when your using an aircraft like 737TNG from PDMG, there's alot of annunciators that are not affected by switches.At this present time I'm trying to get PDMG to answer these questions!Regards,

Guys,I understand everything that has been said so far... my question is - What software do I set these threasholds in. Obviously the Master Caution illuminates whenever a non-normal condition exists... that's why it's in the glareshield directly in front of the pilot. My question is: What software is everyone talking about that allows me to specify my threashold that in turn tells FSBus to illuminate a particular LED? If the range of a particular variable is 0 - 64364 or whatever, and the critical "low" value is 2048, where do I put that value so that FSBUS will turn on a particular LED when FSPUIC reports the value at 2047?There are values for many "canned" values that relect the state of a switch, such as YAW DAMPER or AUTOPILOT... these are simple binary values - true or false... my question is for values that have a range other than on or off... therein lies my confusion.I received the following email from Leo Lacava, who was looking in to this for me as well... This is an email response from a friend of his who answered his query for assistance:-----------------------------------------------------------Mitch,Since I'm not an FSUIPC expert, I asked someone who knows allot more on it than I do. Here's what he had to say:> Can you answer this for me? "Since I have your attention. I> am trying to figure out how to light LED's for annunciators. > I have the FSBUS LED board and want to light an LED when, > say, the Master Caution lamp is set. I can't find such a > variable in FSUIPC. Can you assist?"Answer:That's because there is no variable in FS2k0/2/4 for fsuipc to present to you for this. You have to write the logic yourself, I'm afraid!Basically you must wade through the aircraft manual and note what conditions or combinations of conditions trigger a master caution. Next you must determine which of these are actually emulated in FS and can be read (via fsuipc) and acted upon by your program based upon your logic. Others might be emulated by your own software e.g. a random function that generates some sort of electrical failure, etc.The Project Magenta group is working on a "pmSystems" module that may contain some of this functionality. Other annunciators may be available indirectly e.g. you can read the flaps position and display it on the overhead panel by lighting the appropriate led for that flap setting.Hope this helped. Looks like there's no quick or easy solution.-----------------------------------------------------------------So does anyone know of a way to do this within FSBUS? Seems like there must be folks out there simulating these indicators!

Mitch,I haven't played around with the FSBUS LED board yet, but Looking at FSBUS2 router SW I think you might be able to trick it to get what you want.For Instance, say you want to get the master caution to light up under any one or all of the following conditions;1. Low fuel2. Overspeed3. low Oil pressure...etc. etc.So try adding LED's to your FSBUS router group and name them as MC1, MC2, MC3 etc. (Instead of MC (master caution), you can type any label you want.Then,Map MC1, MC2, MC3... etc. to the SAME controller ID & same LED OUTPUT to get your MASTER CAUTION LED to light up under different FS instances. That way you will be only using ONE LED.Clarify it a little bit, MC1 thru MC3 etc, will have the same Controller ID and the same led output in FSBUS router SW, but Each MC# will have a DIFFERENT FS Instance.i.e. MC1 will have the FS instance for Low fuel warning, MC2 will have the Overspeed MC3 will have the Low Oil pressure etc.I am not sure if this will work, but if FSBUS router allows more than one led to be mapped to the same controller ID and LED output, it should work. It's worth trying anyway. Let us know what happens. If this does not work, you could use a hardware solution like a decoder chip or some thing similar, but you will have to run lot of wiring.Good luck!Sean W.

Sean,Thanks for your response. The question remains... how do I tell FSBus to swith on an LED when,for example, the fuel gets low (below a certain value)?FSPUIC does not have a value for low fuel -- I need to specify that value in some software somewhere... where? THat's my question.Thanks again for your assistance...

Mitch, Sean Beat me to it there, I was going to say the same thing but I think FSBus may throw up some warnings down the bottom that you have conflicting LED mapping's however it may still operate OK, I have not got my setup running handy to test it properly for you.The spot where you stick the values are ones I mentioned earlier, it's on the screen when you first define the LED with the right click, look for the max: & min: values, the values you place here is tells FSBus when the light should be ON.Here is an attachment of the Gear LED you can see the min & max values there that FSBus looks for to see when the LED should light.Regards Glenn.

Glen - THANKS!!! That's the info I was looking for. Don't know why I didn't this in the documentation :(You attached your file as text, so I can't view it - can you edit your message and fix it?THanks to all for your help - sorry to be so f'ing dense!

Yep have fixed it now Mitch, Sorry I have never attached a file to the forum before, it defaults to TXT extension....Glenn.

Sorry dude - still no joy... can you repost?

OK Here Goes..........