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  1. #40
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    Will probably pick one of these up to play with, cost appears to be low enough to see it's capabilities. I also subscribe to "Two is one and one is none" philosophy. Was one a project where I couldn't bring my laptop into the building and this would have been okay if I needed an oscilloscope / protocol analyzer.

    Xminilab Portable

    kontrol out
    "Good" - Jocko
    "Open is as open does." - Forrest Gump
    "Can't we all just get a Lon?" - Garry Jack
    "BACnet: integration or interrogation?" - The Janitor
    "Interoperability? You can't handle interoperability!" - Nathan R. Jessup
    “What’s that? Aaa… open protocols? Don’t talk about…. open protocols? Are you kidding me? Open protocols? I just hope we can hardwire an interface!” - Jim Mora Watch it here!

  2. #41
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    Check the usual dirty cheep electronics sites. These mini handheld scopes are available at disposable prices. Search for pocket oscilloscope. Sure some for the cost are worthwhile.
    Propagating the formula. http://www.noagendashow.com/

  3. #42
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    What interested me with the Xminilab is the protocol analyzer function.

    I've been building a test bench at work with around 30 old controllers that were installed for a decade until recently removed.

    Will be able to do more with the test bench, such as change baud rate on controllers and see effect (the stuff I work with now is auto-baud so couldn't manually change one or two), change protocol from BACnet to proprietary, rewire with non-IEA485 wire among other things and see the effects via the different testers and scopes from the opening post.

    Would like to spend more time with this (was wiring the controller s till 9pm one day last week after work) but work has been busy with some critical deadlines. I think I'll have some time after next week for a post on the KMC router.

    kontrol out
    Last edited by kontrolphreak; 06-17-2018 at 11:00 PM.
    "Good" - Jocko
    "Open is as open does." - Forrest Gump
    "Can't we all just get a Lon?" - Garry Jack
    "BACnet: integration or interrogation?" - The Janitor
    "Interoperability? You can't handle interoperability!" - Nathan R. Jessup
    “What’s that? Aaa… open protocols? Don’t talk about…. open protocols? Are you kidding me? Open protocols? I just hope we can hardwire an interface!” - Jim Mora Watch it here!

  4. #43
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    Quote Originally Posted by kontrolphreak View Post
    What interested me with the Xminilab is the protocol analyzer function.
    Take it there is PC software that goes with it? Would be brutal trying to decode a wad of raw hex on a screen where each character is made up with 5x3 pixel font.
    Propagating the formula. http://www.noagendashow.com/

  5. #44
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    Quote Originally Posted by kontrolphreak View Post
    Guys, no pricing in the open forum. Please edit your posts or it will be done for you.

    kontrol out
    My philosophy is "If you are gonna do something, don't do it halfway"
    If I am gonna post prices in the open forum, I will do it in EVERY SINGLE POST"

    My apologies, I have been Googling Oscilloscopes and RS485 for days, stumbled onto protocol analysis, was a few days into that rabbit hole, and stumbled across this awesome thread. I didn't even notice it was in the open area.

    Kontrolphreak, it is pretty incredible that you went to the hassle of not only finding but acquiring this IF Tools Serial analyzer:
    https://www.iftools.com/analyzer/ind...hoCwrwQAvD_BwE

    Not only is it only in Europe only, not cheap, but it is an odd thing you will not find may guys toying with. Good work bringing it to the table for the rest of us in Htalk land.
    Hmmmm....smells like numbatwo to me.

  6. #45
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    Penn State guy talking about the problems with large BACnet networks with Optigo.

    https://www.youtube.com/watch?v=MvbSEfSwxhk
    Propagating the formula. http://www.noagendashow.com/

  7. Likes digo liked this post
  8. #46
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    Using a raspi for BACnet/IP capture. This setup is to slip in line, no hub or mirror port required. Onboard nic can be use for remote access and live desktop access with WS. This is setup to power up and capture whatever traffic without any interaction. Its well suited for long term continuous captures with good size SD cards. The capture is also not polluted with traffic from the remote monitor nic. Have a handful of these setup now and find them very useful.

    https://buildingsys.net/raspi-network-tap/

    If someone wants SD cards pre-loaded with everything setup, PM me. Images are too large for hassle free sharing, but I'll ship SD cards for a minor fee. I'm also working on my own network tap that is better suited for this setup @ half the cost. The GSG tap is a PITA with the cables coming out all four sides. Thinking of a board with male RJ45s that stab directly into the USB nics and just two female ports for the capture in/out connections. Eliminates two patch cords and shrinks the size a fair deal.
    Propagating the formula. http://www.noagendashow.com/

  9. Likes adam_s05, crab master liked this post
  10. #47
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    Jul 2002
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    Network goes down when I plug in

    All devices seem normal on their own but everything goes down when hook up. I noticed the A almost flatlines and the A-B is always negative. I tried 4 different adapters. No computer hooked up; just adapters.

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  11. #48
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    What are you hooking up? Controller? Gateway? IEA485 converter?

    Appears whatever it it is pulling the A wire signal to ground.

    kontrol out
    "Good" - Jocko
    "Open is as open does." - Forrest Gump
    "Can't we all just get a Lon?" - Garry Jack
    "BACnet: integration or interrogation?" - The Janitor
    "Interoperability? You can't handle interoperability!" - Nathan R. Jessup
    “What’s that? Aaa… open protocols? Don’t talk about…. open protocols? Are you kidding me? Open protocols? I just hope we can hardwire an interface!” - Jim Mora Watch it here!

  12. #49
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    I am plugging in my serial to mstp converter which is not even plugged into my laptop.

  13. #50
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    Quote Originally Posted by incontrol View Post
    my serial to mstp converter which is not even plugged into my laptop.
    Looks like its hooped then. Try another.

    Quote Originally Posted by orion242 View Post
    Thinking of a board with male RJ45s that stab directly into the USB nics and just two female ports for the capture in/out connections. Eliminates two patch cords and shrinks the size a fair deal.
    From thinking...to using. Way more compact and all the cables exit the same direction.

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    Propagating the formula. http://www.noagendashow.com/

  14. #51
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    Quote Originally Posted by orion242 View Post
    Looks like its hooped then.
    Does Hooped mean Hosed?
    Tried 4 all set the same and been using for years and years.

  15. #52
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    Assuming so with the info at hand. Wouldn't expect it to cause any disruption to the trunk by simply connecting it. That guy looks to be shorting one leg out when connected. Discussion for another thread.
    Propagating the formula. http://www.noagendashow.com/

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