Datalink failure messages from MLB100
Printed From: Avidyne
Category: Avidyne General
Forum Name: IFD 5 Series & IFD 4 Series Touch Screen GPS/NAV/COM
Forum Description: Topics on Avidyne's IFD 5 Series and IFD 4 Series Touch Screen GPS/NAV/COM
URL: http://forums.avidyne.com/forum_posts.asp?TID=1006
Printed Date: 16 May 2024 at 3:48pm
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com
Topic: Datalink failure messages from MLB100
Posted By: PeterC
Subject: Datalink failure messages from MLB100
Date Posted: 15 Mar 2016 at 6:15am
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Out flying Sunday with my friend and his twin 540s to check out the install and we kept getting "Datalink failure" messages. We were also getting mlb100 regional radar and metar as well. Are these messages normal? Do they indicate an install problem or a comm problem between the aircraft and the tower? ------------- Peter - 1977 Cardinal RG C-FJPC - IFD550/540/240/322/605A/Skytrax100, Aspen MAX 2000, Trio A/P |
Replies:
Posted By: AviSimpson
Date Posted: 15 Mar 2016 at 8:55am
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What software level are your IFD540s at? ------------- Simpson Bennett Avidyne Corporation Product Manager |
Posted By: PeterC
Date Posted: 15 Mar 2016 at 9:59am
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The IFDs and the MLB100 were updated by our avionics shop last month to the latest version. Checking to confirm the actual number. ------------- Peter - 1977 Cardinal RG C-FJPC - IFD550/540/240/322/605A/Skytrax100, Aspen MAX 2000, Trio A/P |
Posted By: PeterC
Date Posted: 15 Mar 2016 at 11:09am
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Confirmed with avionics shop IFDs are 10.1.1 and MLB is at 4.09 ------------- Peter - 1977 Cardinal RG C-FJPC - IFD550/540/240/322/605A/Skytrax100, Aspen MAX 2000, Trio A/P |
Posted By: AviSimpson
Date Posted: 15 Mar 2016 at 1:26pm
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I'm going to have our tech support team reach out to you and work through some troubleshooting. ------------- Simpson Bennett Avidyne Corporation Product Manager |
Posted By: DavidBunin
Date Posted: 16 Mar 2016 at 10:58pm
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Do you know exactly WHICH "failure" message you had? I ask because sometimes one piece of ADS-B data (like SIGMETS, or PIREPs, or something) can expire before the next set is downloaded. When that happens, you get a cyan CAS alert that says "Datalink Data Not Rcvd" (DDNR). But it's not like you lost all of the data. The DDNR comes up separately for each type of data, which I found confusing at first. Why would I get a CAS Alert for weather when I clearly had METARs (for example) on the display. I have come to understand through experience that DDNR is not an indication of failure, it is simply a state of being. The not-received data will come around again after a few minutes unless you leave ADS-B coverage. My best example of this is having a long taxi time at an airport that did not have an ADS-B tower on the field. Basically all of my pieces of weather data expired (and I got a separate DDNR for each one as it expired) by the time I took off. But once I was in the air for a while, all of the items downloaded and the CAS alert cleared. The other example I had was a long VFR flight at low altitude in remote terrain, when I was out of coverage (or on the edge of coverage) for an extended period. Again, once I reached a more populated area, all of the pieces downloaded and the CAS alert cleared itself. David Bunin |
Posted By: PeterC
Date Posted: 17 Mar 2016 at 3:43am
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At some point we got the DDNR error, which I understand, but we also got the Datalink Receiver Fault error on more than one occasion. At one point the duration showed 4 minutes and another time 16 minutes but I do not know if that is an indication of how long ago the error occurred or how long the fault was. ------------- Peter - 1977 Cardinal RG C-FJPC - IFD550/540/240/322/605A/Skytrax100, Aspen MAX 2000, Trio A/P |
Posted By: DavidBunin
Date Posted: 18 Mar 2016 at 2:58pm
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If you're talking about the Alerts page view, I think that it is only real-time data. For example, if the unit fails, the alert appears. The duration starts counting. Five minutes later, it shows a duration of 5 minutes. If the unit recovers and data is restored, the alert goes away entirely. So if you see a fault and a duration, the fault is "current" and the duration is how long ago it first occurred. "Datalink Receiver Fault" is either a wiring problem or a software problem. I have seen that one on the bench when some equipment was disconnected. You might try upgrading the IFD to software 10.1.2.0 which was recently released. David |
Posted By: petersk
Date Posted: 19 Mar 2016 at 12:46pm
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I have the same issue with my installation, which has two IDF540s and an MLB100, also a TWX670. I'm getting two (well, three) types of failures: First, I see a yellow 'Traffic Sensor Fault' popping up frequently, although I'm seeing traffic and it seems to be updating in real time. The fault shows every time that an alert is presented... or perhaps the fault causes the alert. I have videos of this happening, you can see those videos here: http://secure4host.net/big/event1.avi" rel="nofollow - http://secure4host.net/big/event2.avi" rel="nofollow - http:// I'm flying just west of ORD, just outside their Mode C ring, so it should be a good coverage area even at 2500 feet, where these shots were taken. Oddly, the blue lines only show on the top 540. I'm not certain that I had the weather display turned on in the settings of the second one... something I need to play with to be sure of next time. I have at times flown around for 20-30 minutes without seeing these blue stripes, other times they pop right up and don't seem to go away. At the risk of piling on, I also see the occasional 'lightning sensor fault' error... all things considered it starts to feel like the interfaces might be a little too sensitive, alerting at the slightest detail, or the I/O system in general is dropping a few bits here and there. ------------- Keith Peterson Cardinal Flyers Cardinal RG N177KP |
Posted By: LANCE
Date Posted: 19 Mar 2016 at 10:48pm
On the second issue, have you upgraded to 10.1.2 yet? That is supposed to fix the ConUS weather issue. http://forums.avidyne.com/forum_posts.asp?TID=954&title=problems-with-conus-wxrdr-fixed
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petersk wrote:Posted By: PeterC
Date Posted: 20 Mar 2016 at 9:56pm
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I was using the sim just now and the same thing happened. Half of the window was covered with hatched lines but I did not see a datalink fault. Is the sim having the same sw issues as the 540 and will the 10.1.2 fixes need to be applied Or is this just simulated failures. The lines appeared when I zoomed out about 400nm to my destination. ------------- Peter - 1977 Cardinal RG C-FJPC - IFD550/540/240/322/605A/Skytrax100, Aspen MAX 2000, Trio A/P |
Posted By: AviSimpson
Date Posted: 21 Mar 2016 at 9:14am
The sim runs 10.1 software so its possible. The sim software is getting the weather information from the internet and not a MLB100 so its more likely just a limitation of the sim itself. Are you seeing the weather inside the 400nm zoom? ------------- Simpson Bennett Avidyne Corporation Product Manager |
Posted By: PeterC
Date Posted: 21 Mar 2016 at 4:00pm
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Yes I had radar weather inside of 400 nm. Not sure how far but it seemed to be a distance issue i.e. As I zoomed out the lines appeared at a far point on the map from my position. ------------- Peter - 1977 Cardinal RG C-FJPC - IFD550/540/240/322/605A/Skytrax100, Aspen MAX 2000, Trio A/P |