Recall Panel on B737NG

Hello fellow builders,

I'm currently working on the Master Caut switch and recall panel on my B737NG glareshield. I use PMSystems and I want to simulate the annunciation of warnings via the sixpack using PMSystems.

On the real aircraft the recall panel is also a large "button" which you can push to recall any warnings via the annunciators. Now I think PMSystems will (if not already) allow simulation of the recall function on the sixpack.

My question is...if anybody has done it can they tell me whether they use a momentary switch for the recall panel or do they use a simple single throw single pole switch?????

I know this is probably dependent on how it is coded in the PMSystems logic for the recall panel but it looks to me that a STSP switch is a more logical choice. I couldn't tell which to use as the logic for this in the B737 logic file in PMSystems appears to be incomplete.

Look forward to hearing from you

Cheers,
Luke

Hello Luke, haven't yet try with hardware wired but in pmsys737.lgc file we can read :

if recallswitch then
sixpackfltcontdisp = 0
sixpackelecdisp = 0
sixpackhyddisp = 0
sixpackapudisp = 0
sixpackfiredisp = 0
sixpackengdisp = 0
sixpackantiicedisp = 0
sixpackdoorsdisp = 0
sixpackfueldisp = 0
else
sixpackfltcontdisp = sixpackfltcont
sixpackelecdisp = sixpackelec
sixpackhyddisp = sixpackhyd
sixpackapudisp = sixpackapu
sixpackfiredisp = sixpackfire
sixpackengdisp = sixpackeng
sixpackantiicedisp = sixpackantiice
sixpackdoorsdisp = sixpackdoors
sixpackfueldisp = sixpackfuel
endif

56F8 .1 RecallSwitch : offset for Recallswitch in sysvar file,

so I think it's ok to use a momentary push button linked to offset 56F8 ( bit n° 1 ). When you push the recall button, all annonciators turn off, then when you release it, some annonciators tuen on, depends of systems conditions, as in real.

Yes it works with a momentary push button, i have done with my setup and works perfect, here are two pic links.

http://www.abcfamily.com.br/project7...d/DSC01548.JPG


http://www.abcfamily.com.br/project7...d/DSC01539.JPG


Hope that helps ,

Carlos

I haven't wired mine up yet but when I built the sixpack panel backer I placed it on a momentary push switch so to do a recal you would push the faceplate of the sixpack. I trimmed out enough room around the sixpack to allow it to freely move back and forth in the glareshield. I thought this would be more realistic. Here are real crappy pictures but should help. (Better pilot than photographer)

Normal postion
http://www.digitaldoubts.com/ForumPics/1.jpg

Pushing for recal. It doesn't sink in much but the switch works and is spring loaded to push panel back out.
http://www.digitaldoubts.com/ForumPics/2.jpg

Thank you for all your replies (including images!) to this post.

The way is clear for me now and it seems the way to go is with a momentary switch.

Lyle your set up on the glareshield looks great :cool: and that is exactly what I propose to do. Thanks for the images.

Cheers,
Luke