SL30 Connection to Dynon HS34

flickroll · #1 01-01-2009, 04:41 PM

I'm having a devil of a time getting my SL30 to communicate with the HS34. Everything is wired on a bench using a 15 amp power supply. I believe the Tx & Rx wires are properly connected. I cannot get the SL30 to display anything on the Dynon HSI. Can someone who has done this installation before tell me what settings were used? The Dynon install manual is vague, and the SL30 manual is about the same. Here are my settings:

Dynon:
Serial 2 (the SL30 is connected to serial 2)
Input: SL30
Output: SL30 CMD
Baud rate: 9600

SL30:
Indicator Head Type: Serial

Also, I cannot get my Garmin 696 to move frequencies to the SL30. The Dynon does display 696 data.

Any and all help is greatly appreciated. Thanks

Jim Shannon
RV-8 N52VV
Charlottesville, VA

flickroll · #2 01-01-2009, 05:05 PM

I am such a bonehead. Had the serial wires on the wrong connector.....Put them on the correct connector and now the GPS dumps frequencies to the SL30, and the Dynon now displays the tuned frequency on the HSI. HOWEVER....I still cannot get the SL30 to display flags, g/s & loc data when in SL30 test mode. Any ideas? Thx

flickroll · #3 01-01-2009, 06:28 PM

I THINK it's all working OK now, except I cannot get the LOC or G/S indicators to show L/R or Up/Dn indications using the SL30 test setup. It does show LOC, BC, NAV, G/C flags, but not the TO/FRM arrows. This may be a function of the SL30 test setup and not the Dynon HSI. I do know the SL30 and the D100 are communicating

Jim Shannon
RV-8 N52VV
Charlottesville, VA

SteinAir · #4 01-01-2009, 09:31 PM

The SL-30 isn't like the GNS-430 in test mode where it sends out all sorts of data. The only real way to test it is either with a signal generator (ramp tester or equivalent) or go fly. If the thing is communicating and you know it, then everything is OK....don't worry about trying to do a full blown test on the bench with things in test mode. Unless you have the equipment to do it, you're not likely to get a good result until you go fly.

Anyway, sounds like you're just fine and got everything working ok...so I wouldn't be to worried.

Cheers,
Stein

flickroll · #5 01-01-2009, 09:57 PM

Thanks Stein. Everything seems to be communicating fine so It's probably better time spent finishing this thing than worrying about it

Happy New Year!!

flickroll · #6 01-02-2009, 06:30 AM

Stein, one last observation/question. In the SL30 setup you can select 'Indicator Head Type' as 'None', 'Resolver', 'Converter', or 'Serial'. I had assumed that when using a serial interface between the SL30 and the HS34 you would select 'Serial' under 'Indicator Head Type'. Seems a no-brainer. However, with all of the monkeying around with the system yesterday I found that it does not matter how you configure the 'Indicator Head Type'. The HS34 gets data from the SL30 regardless of the selection in this setting. I tried them all and the HS34 and SL30 communicate with any one of the types chosen, and the D100 seems to properly display HSI data. Any idea why this is the case? Thanks

Brantel · #7 01-02-2009, 06:54 AM

You will need to ensure that you can send the OBS setting back to the SL30 from the HS34. I have seen conflicting info on if this setting should be "None" or "Serial". Pick whichever one allows you to set the OBS (course) setting from the HS34. Keep in mind that the SL30 does not allow OBS settings when tunned to a LOC frequency. This is a limitation of the SL30 not the HS34/Dynon.

Quote:

Originally Posted by flickroll

Stein, one last observation/question. In the SL30 setup you can select 'Indicator Head Type' as 'None', 'Resolver', 'Converter', or 'Serial'. I had assumed that when using a serial interface between the SL30 and the HS34 you would select 'Serial' under 'Indicator Head Type'. Seems a no-brainer. However, with all of the monkeying around with the system yesterday I found that it does not matter how you configure the 'Indicator Head Type'. The HS34 gets data from the SL30 regardless of the selection in this setting. I tried them all and the HS34 and SL30 communicate with any one of the types chosen, and the D100 seems to properly display HSI data. Any idea why this is the case? Thanks

uk_figs · #8 01-02-2009, 09:06 AM

Brian
I wanted to do this but as I understand it you have to choose between the 496 frequency upload to the SL-30 OR the HS34 SL-30 CMD input to the SL-30 to allow the OBS to be controlled from the HS34. This is because there is only one RX line in the SL-30.
In my case I chose the 496 frequency upload input as I was led to believe you cannot just gang the RS232 inputs together, is this correct or is there a way to do both.
In my setup the result is everything works well except the OBS control from the HS34.

SteinAir · #9 01-02-2009, 09:39 AM

I don't have an SL-30 connected to my Dynon, but I think you use indicator head type "None" and you are correct that you can't gang together multiple RS-232 inputs into the SL-30....you get to use that line for one thing as uk_fig mentioned.

Cheers,
Stein

flickroll · #10 01-02-2009, 11:34 AM

With my setup using the HS34, I can set the Nav Course needle (OBS) through the HS34 AND I get frequency downloads to the SL30 from the Garmin 696.