PMDG Offsets

[Daveanne]

Hi guys,

I have asked a few questions on here before about offsets for PMDG, however through experimentation I have discovered at least one, for which I am delighted about, because it was the one I was looking for....

I am installing a Phidgets interface to motorise my TQ and Spoiler leaver, the throttle part is fine just using the hookup in FS2Phidgets and the throttles move as the ones in PMDG do, a little jerky, but hey it works.

What I wanted to do was use the A/T (Autothrottle) switch on the MCP through the Phidgets 0/0/4 to connect/dis-connect the servo's when the A/T is on/off

Using FSInterrogate (in the FSUIPC SDK), I managed to identify that the offset of: 621C is the one for the A/T engage/dis-engage.

Does anyone know of any others at all, I am particulary interested in the AP Comd A switch offset to complete the project.....????

By the way I am not using Project Magenta, just good old FS9 & PMDG

Best wishes

Daveanne

[brynjames]

Well done Daveanne! This could be a very useful thread, especially if it results in a long list of useful offsets.

--
Bryn

[Efe Cem Elci]

This could prove useful...

http://members.chello.at/spatat/pmdg.htm

[Daveanne]

Had even more success this evening, managed to find out the offset for the AP too:

The offset for the AP (CMD A) is 6226 (0= off 512 = on)

By the way the A/T offset of 621C (0 = off 1 = on)

I have now been able to try it out on my pit, was just trying it out on a Desktop PC before, the pit has a CPFlight MCP (old model, not USB), coupled in along with EFIS, Radios too.

I was a bit worried that even though it all worked on the desktop, as soon as I coupled it up to the MCP it would all go wrong, however I am pleased to say that it works a treat......Yipee!! well done FS2Phidgets and Phidgets of course, at last, something that does what it says on the tin..!!

So now I have phidgets servo's operating both throttles (737NG) and one smaller one operating the "spoiler" as we land, automatically...!! deep joy

Plus I have also configured the Phidgets 0/0/4 relay interface to switch over when the A/T and A/P (COMD A) are selected, thus I can set the throttles for take off maunally, I have made a small loop in the connections so that both the A/T and the A/P need to be on before the Servo's work, therefore only when I have the A/T and the A/P selected, together do the throttles move on their own......Rock-on Tommy..!!!

As you can tell I am very pleased with myself....Yahooooooo!!

I have taken jpeg screen shots of the FS2Phidgets screenshots and congfigurations if anyone is interested, but not quiet sure how to get them on this web site...???

Anyway, must go and complete another circuit of EGCC just to make sure it all works properly, by the way the mock up I have built to test the system hasn't been installed in my present TQ yet, maybe I will have to completely rebuild it from scratch, I hope not, that will take some serious time........again.

Steeverson...? hows your new throttle doing?

Daveanne

[Daveanne]

Hey guys, the first two I found on my own using FSInterrogate, however I just found another guy also did the same before me....!

Have a look at: http://members.chello.at/spatat/pmdg.htm

Lots and lots of offsets....Well done that man..errrrr or Woman?

Daveanne

[ian@737ng.co.uk]

ah, the search for the holy grail continues......
i know from experiments that the PMDG 737 uses the block of offsets from &H6200 thru &H62FF. unfortunately i've not had the need to go digging in there, so i can't be more specific i'm afraid. this was something i was looking at during one stage of development.
i did get as far as finding out that as dave asked the A/T writes to &H62BD (as does the Flight Director). seems like a value is written for the F/D and and another for the A/T and a third when both are on.
so, interrogate this block of offsets and see what you can find out.
hope that helps you guys out......
have a great day chaps.... regards from wales ... ian

[aluver]

Found this :

62C0 spd INTERV Autopilot 23 = SPD intv., 21 = BLANK

0BCC speedbrake ?
0BD0 speedbrake ?
049C Below GS/ ?

02D4 ADF2 ?
02D6 ADF2 ?

MINS / FPV $6202 => 0100
MINS / MTRS $6204 => 0001
BARO /IN $6202
BARO HPA $6202

VOR1 $6204 => 0100
ADF1 $6204 => 0200

SW1 : APP $6206 => 0000
VOR $6206 => 0100
MAP $6206 => 0200
PLN $6206 => 0300

SW2 : 5 $6208 => 0000
10 $6208 => 0100
20 $6208 => 0200
40 $6208 => 0300
80 $6208 => 0400
160 $6208 => 0500
320 $6208 => 0600
640 $6208 => 0700

TERR $620A = B0
POS $620A = B1
DATA $620A = B2
ARPT $620A = B3
WPT $620A = B4
STA $620A = B5
WXR $620A = B6

VOR2 $6206 => 0001
ADF2 $6206 => 0002

was able to manage all functions of MCP 737 (sioc - opencockpit ) but nothing for systems / overhead, bybe bye PMDG....

[Peter Dowson]

Found this
0BCC speedbrake ?
0BD0 speedbrake ?
02D4 ADF2 ?
02D6 ADF2 ?

I don't understand why you question these. For offsets provided and supported by FSUIPC, why not simply look them up in the extensive lists supplied in the FSUIPC SDK? I can't publish details of offsets in the application areas, used by third parties, because that is their affair, but I have always published as much information as I have for all the data provided and supported by FSUIPC itself!

Pete

[Daveanne]

Peter, forgive me I am definately not an expert on any of this, rather the reverse actually, just a novice trying to get his TQ motorised......

Are you saying that the offsets that i have mentioned in this thread are the FSUIPC offsets for the A/T and A/P switches on the MCP.....?

If so, where exactly are they listed in the SDK, which I have downloaded.

Many thanks

Daveanne

[aluver]

I don't understand why you question these. For offsets provided and supported by FSUIPC, why not simply look them up in the extensive lists supplied in the FSUIPC SDK? I can't publish details of offsets in the application areas, used by third parties, because that is their affair, but I have always published as much information as I have for all the data provided and supported by FSUIPC itself!

Pete

Hello Pete and sorry, I wrote too fast... yes of course 0BCC & 0BD0 are standard offsets for speedbrake, the "?" were just here in my file as a personnal memo for me, because I hadn't really test them with PMDG 737 (just remember that speedbrake logic in PMDG is different than standard FS aircrafts. No "speedbrake arm" by keyboard...).

My post had to be only about specific offsets 6200..... in PMDG.

For Daveanne : For the MCP, don't forget the possibility of simply using key emulation card for all controls. ( in relation with PMDG -> GENERAL ->KEYBOARD COMMANDS in FS menu )