Transforming output values | MobiFlight | Page 1

woven pebble Jan 17, 2024, 8:26 PM

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Hi, i am programming my EGT display tm1637.
The MSFS readout are 850 to 1200 where my desiree output shall be 390 to 850. I can not just say /2 because this will give me a max of 600 on the high end.
Do i have to say for each full number add specific value eg: if($=850,390)($=851,391) and so on or is there a more elegant way?

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I have even more problems programming this eg N1 i want to have first digit dark until 100.0 is exceeded and then shift to left like on an original dial. Know what i mean? 69.8 the first digit is blank. 101.5 all 4 digits are used

zinc mango Jan 17, 2024, 8:35 PM

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woven pebble Hi, i am programming my EGT display tm1637. The MSFS readout are 850 to 1200 whe...

I think you are describing what the interpolation function is designed to do. I still don't understand why you would like to display 390 instead of 850 on EGT.

woven pebble Jan 17, 2024, 8:41 PM

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Hi Jaime and thank you for the quick response.
Because the A310 has 390⁰ egt @ idle. But the sim value is 850.
So i said $/2.2 and i got 390 on my Display. But when pulling Power the /2.2 doesnt fit anymore because i need a non linear increase. 1200/2.2= 545 but EGT at full power is around 820/850

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Ok just with Interpolation it worked
I did not know/understand this function.

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For the second problem with the display shift above hundred do you also have an idea?

zinc mango Jan 17, 2024, 8:54 PM

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woven pebble Hi Jaime and thank you for the quick response. Because the A310 has 390⁰ egt @ i...

Help me understand the EGT issue. What variable are you looking at that has the 850 to 1200 range? Seems odd that you have an EGT variable with strange values.

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you sure it is not simply a units conversion issue?

woven pebble Jan 17, 2024, 8:56 PM

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There is only 3 variables for EGT generic because there is no Inibuilds A310 egt preset so i have to use generic instead and modify.
But it works with your Interpolation tip

zinc mango Jan 17, 2024, 8:57 PM

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this I gotta see

woven pebble Jan 17, 2024, 8:57 PM

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No it works great now (second from above)🥳💪

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zinc mango Jan 17, 2024, 8:58 PM

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you basically saying the model is lying to the simulator by setting the EGT value to a fake number

woven pebble Jan 17, 2024, 8:59 PM

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Yes, look

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zinc mango Jan 17, 2024, 8:59 PM

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woven pebble Jan 17, 2024, 9:00 PM

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392 indicated 854 value

woven pebble Jan 17, 2024, 9:00 PM

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zinc mango

I dont have it

zinc mango Jan 17, 2024, 9:00 PM

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try (L:A310_ENGINE1_EGT)

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(L:A310_ENGINE2_EGT)

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They are reading about 390 in the sim

woven pebble Jan 17, 2024, 9:02 PM

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What is L:A310?

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zinc mango Jan 17, 2024, 9:02 PM

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L: is the designator for an Lvar

woven pebble Jan 17, 2024, 9:03 PM

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I cannot select it from dropdown

zinc mango Jan 17, 2024, 9:03 PM

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A310 is a prefix chosen by Inibuilds for the A310 variable and event names

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just put the code in the preset code box

woven pebble Jan 17, 2024, 9:03 PM

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Ufff

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I am so newbi

zinc mango Jan 17, 2024, 9:03 PM

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maybe nobody has included this preset until now

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this is the code (L:A310_ENGINE1_EGT)

woven pebble Jan 17, 2024, 9:04 PM

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But how you find it man there must be so much more then🤦

onyx stoneBOT Jan 17, 2024, 9:04 PM

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Check out this wiki page for information: Uncovering input events using the MSFS2020 model behavior dialog

Bad Casserole

Neil E.

Uncovering input events using the MSFS2020 model behavior dialog

woven pebble Jan 17, 2024, 9:05 PM

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zinc mango this is the code `(L:A310_ENGINE1_EGT)`

Ahhh there is an lvar list in preset code

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Omg i am crying

zinc mango Jan 17, 2024, 9:22 PM

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your original issue with the generic A var is that the default units are degrees Rankine

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So degrees F= Rankine - 460

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850 - 460 = 390

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there is your answer

woven pebble Jan 17, 2024, 9:29 PM

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Ok so this would have worked if i just converted f to c .

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Oh man....
So i could use both this or the L var thingy. I read through your article and i begin to understand. Its a bit oberwhelming but i think i can start now.
Thank you this door is opened from you now!

zinc mango Jan 17, 2024, 9:46 PM

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as far as I can tell, the default units on the EGT appear to be degrees Fahrenheit

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in the aircraft Lvar I mean.

zinc mango Jan 17, 2024, 9:47 PM

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woven pebble Ok so this would have worked if i just converted f to c .

not f to c. Rankine to Fahrenheit

zinc mango Jan 17, 2024, 10:29 PM

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well now I have a problem with these values. The cockpit dial clearly says the temperature is in degrees C and reads 390

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As far as I can search in Google, the normal EGT for a jet engine is about 400C, so that checks out fine.

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the issue is that the EGT stated in the MSFS generic Avar clearly says it is 850 degrees Rankine. I think this is a mistake in the proper handling of units in the simulator. The correct temperature in Rankine should be more like 1200 degrees, not 850. I guess it is immaterial because it is a simulator anyway.

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So nothing we can do except, be aware that the EGT as reported by the Avar is mistaken in the Inibuilds A310.

woven pebble Jan 17, 2024, 10:48 PM

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Yes, the value of 390 c is correct for CF6 Engine as is 850 c for max egt i know that from real life

#Transforming output values