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  1. Replies
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    Good day, I believe you actually need a RJ12...

    Good day,

    I believe you actually need a RJ12 cable (RJ12 connectors on 6-conductor cable). RJ12 is the same connector as RJ11 except that it has 6 loaded pins instead of the RJ11's 4 pins. ...
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    Yup... that is about typical for me, but even so...

    Yup... that is about typical for me, but even so I probably have forgotten something. I wonder if I could load up a junior tech and make them into a pack mule of a sort ...

    Cheers,

    Sam
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    Good day Maxburn, Agreed. Thus we decided to...

    Good day Maxburn,

    Agreed. Thus we decided to hold off on the release of the device in order to include MS/TP functionality testing. During this time we monitored the interest and even for MS/TP...
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    Good day JCIMan, Excellent, thank you for the...

    Good day JCIMan,

    Excellent, thank you for the info!

    Cheers,

    Sam
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    Good day Maxburn, I wonder when JCI came out...

    Good day Maxburn,

    I wonder when JCI came out with this? I ask, as we embedded this functionality into our S2USB485 device since 2008.

    Effectively we embedded a voltmeter, etc into the...
  6. Good day bigguy158, This would be good to see...

    Good day bigguy158,

    This would be good to see if the retries helps or minimizes the issue, however, this approach would not fix the issue... it would be more of a band aid. If the supervisory is...
  7. Good day Techdr13, Historically TEC devices...

    Good day Techdr13,

    Historically TEC devices have had issues on the N2 bus and perhaps even on the MS/TP buses too. I remember some of the older TEC's having so many issues that the "fix" was to...
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    Good day BetterDuck, Who does? But your...

    Good day BetterDuck,



    Who does? But your comments come off that you do and if someone challenges you and/or has a differing view you sidestep their rebuttal.

    In my case I have a lot yet to...
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    Good day BetterDuck, My apologies. I was...

    Good day BetterDuck,



    My apologies. I was just trying to figure out where you acquired your all knowing technical knowledge. Given your responses and also not answering direct questions it is...
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    Good day BetterDuck, You do not get away that...

    Good day BetterDuck,

    You do not get away that easy... Look at your comment, or did you forget:



    Please be specific as to why it is ridiculous to consider on RS485 (protocol independent). ...
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    Good day BetterDuck, You do realize that...

    Good day BetterDuck,



    You do realize that RS485 is an electrical standard and has nothing to do with the actual data sent... just like Ethernet. Security and/or Encryption is/are done on the...
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    Good day again BetterDuck, Again, can you...

    Good day again BetterDuck,

    Again, can you explain your comment further and/or provide some data to substantiate this claim?



    Cheers,

    Sam
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    Good day BetterDuck, Can you please expand...

    Good day BetterDuck,

    Can you please expand upon your comment further... and/or why you think this is so?



    Cheers,

    Sam
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    Good day Day Dracula, Can you provide a bit...

    Good day Day Dracula,

    Can you provide a bit more detail on this $14 manufactured cost product you mention? You can PM/e-mail me if you like. I say this, as I have worked with some larger firms...
  15. Thread: EasyIO FT04

    by s2sam
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    Good day Davem, Hmmm... can you elaborate on...

    Good day Davem,

    Hmmm... can you elaborate on this further or provide a part number of the ballasts you are interfacing to? I ask, as this has not been our experience... we use a 0-10V dimmable...
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    Good day NSSF, Gotcha. I misunderstood the...

    Good day NSSF,

    Gotcha. I misunderstood the point you were making... my apologies!

    I agree in that JCI is simply uninterested in this and/or smaller markets. That being said I can sort of...
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    Good day NSSF, I am not defending JCI on this,...

    Good day NSSF,

    I am not defending JCI on this, but there would be a lot of effort to support the older gear via Smartphones (Android, iOS), Tablets, etc and logistics may not really make any sense...
  18. Thread: Ground loops

    by s2sam
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    Good day valdelocc, That is great that all is...

    Good day valdelocc,

    That is great that all is working... and if all is fine then I would simply leave well enough alone.

    Also with regards to switching frequency and harmonics... Harmonics are...
  19. Thread: Ground loops

    by s2sam
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    Good day bolt950rider, This is a major kludge...

    Good day bolt950rider,

    This is a major kludge in my opinion...Clearly, the manufacturer has no real understanding of RS485, etc.

    Secondly, one has to be clear and careful in using the term...
  20. Thread: Ground loops

    by s2sam
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    Good day bolt950rider, You are most welcome! ...

    Good day bolt950rider,

    You are most welcome!




    This is correct. Thing of it this way and ignore the whole RS485 thing. You have a electronic component that is powered. this device needs...
  21. Thread: Ground loops

    by s2sam
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    Good day bolt950rider, Numbawunfela and...

    Good day bolt950rider,

    Numbawunfela and BillControls provided somg good info.


    Digging deeper... Typically the "Reference" is tied to the controller's RS-485's transceiver's local ground...
  22. Thread: Ground loops

    by s2sam
    Replies
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    Good day Numbawunfela, If you have ever...

    Good day Numbawunfela,



    If you have ever used Ethernet (which I am sure you have), you have used cable without a shield and it works really well. To be fair Ethernet twisted pair signaling...
  23. Thread: Ground loops

    by s2sam
    Replies
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    Good day Numbawunfel, Indeed, VFDs can be...

    Good day Numbawunfel,

    Indeed, VFDs can be nasty beasts with regards to RS485 (Bacnet, JCI N2 , etc) communication and at times shielding may be the only way to obtain reliable communications. ...
  24. Thread: Ground loops

    by s2sam
    Replies
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    Good day Numbawunfela, Just be aware that...

    Good day Numbawunfela,

    Just be aware that "shield", "Ref", "Reference", etc cannot be used interchangeably and/or are not the same connection on every device. technically "Shield", "Reference",...
  25. Good day KP, No worries, as I knew what you...

    Good day KP,

    No worries, as I knew what you meant. If this is the only thing you have Brain farts on, you are doing much better than me... my brain not only farts, but spews out crap too :)... I...
  26. Good day KP, I think you meant to use the term...

    Good day KP,

    I think you meant to use the term "unit load" and not "watt" in your bus loading description of the EIA-485 (RS485) network. Watt is a unit of power whereas unit load denotes the...
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    Good day Orion242, Thanks again for the great...

    Good day Orion242,

    Thanks again for the great info!

    Cheers,

    Sam
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    Good day Orion242, Thanks for the great info!...

    Good day Orion242,

    Thanks for the great info!

    Can you dictate how Tridium retrieves values? For example with Modbus you can read a single register or you can read multiple registers in one...
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    Good day HTuttle, That is excellent that at...

    Good day HTuttle,

    That is excellent that at least one issue got sorted! Modbus is a great protocol, however, it does have its quirks... as with all protocols. The modbus offset by 1 issue is...
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    Good day HTuttle, Thanks for the enlarged...

    Good day HTuttle,

    Thanks for the enlarged image... now I can see the values! The scale factor definitely looks wrong. On the inverter side, the scale factor is a signed integer and is exponent...
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    Good day HTuttle, Thanks for the additional...

    Good day HTuttle,

    Thanks for the additional information. Your SolarEdge setup is different that ours and also we do not have any SolarEdge Meters, and so it is possible that something is amiss...
  32. Good day Mwebb.NJ, You are most welcome and...

    Good day Mwebb.NJ,

    You are most welcome and that is great that you found a solution! Indeed, your application was very similar to our customer's application that we designed our device for. In...
  33. Good day Mwebb.NJ, If you are unable to find...

    Good day Mwebb.NJ,

    If you are unable to find anything send me a message, as we designed a very similar device for a customer and so we may be able to adapt the components to do what you want.
    ...
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    Good day mfia321, I have been working with...

    Good day mfia321,

    I have been working with SolarEdge (and SMA, Fronius) on integrating these inverters (actually 28 of them on one site alone) for the past few months. However, I am not using...
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    Good day jerseydevil, I am not familiar with...

    Good day jerseydevil,

    I am not familiar with your Integrator/Trane setup, but I have a lot of N2 bus experience and general diagnoses and troubleshooting steps will be the same. To thoroughly...
  36. Good day john5220, The software (HVACPro) is...

    Good day john5220,

    The software (HVACPro) is used to program, commission, etc older field controllers made by Johnson Controls Inc (JCI).

    Cheers,

    Sam
  37. Good day Reaper, Natively yes, but you can use...

    Good day Reaper,

    Natively yes, but you can use HVACPro on 64-bit Windows machines via Virtualization software that has 32-bit Windows installed. Surprisingly, it works very well. :) We and a...
  38. Good day nocomply65, Ensure that your HVACPro...

    Good day nocomply65,

    Ensure that your HVACPro is version/Release is 8.04 or higher.

    Secondly, check that you have installed your USB Serial converter on a USB2.0 port. Newer computers and...
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    Good day KneelBeforeZod, Sadly, a lot... and I...

    Good day KneelBeforeZod,

    Sadly, a lot... and I mean a lot of manufacturers, Engineers, etc simply "think" they know RS485, but in reality they do not. Although RS485 has been around a long time...
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    Good day Orion242, No need to dig up the info,...

    Good day Orion242,

    No need to dig up the info, as you are quite correct... the termination (impedance) should match the characteristic impedance of the cable. This is the golden rule for all...
  41. Good day, Thanks for the info. Sadly, there...

    Good day,

    Thanks for the info. Sadly, there is no way we can meet your time frame, as the device is still in early pre-production site testing, etc. My apologies!

    Cheers,

    Sam
  42. Good day Orion242, You are quite correct,...

    Good day Orion242,

    You are quite correct, however, our approach is quite unique and does not suffer from the issues you mentioned. The device is super slick... Send me an e-mail if you are...
  43. Good day, What is your time frame for needing...

    Good day,

    What is your time frame for needing the device? I ask, as as we are developing a device for a customer that can certainly do what you want/need plus a whole lot more... Unfortunately we...
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    Good day Desert Guy, Excellent, thank you. I...

    Good day Desert Guy,

    Excellent, thank you. I sent a PM back.

    Cheers,

    Sam
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    Good day Desert Guy, Can I ask whose Bacnet...

    Good day Desert Guy,

    Can I ask whose Bacnet Retrofit board you are using?

    Thanks in advance!

    Cheers,

    Sam
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    Good day All, I came across this software that...

    Good day All,

    I came across this software that may be of interest:

    https://qelectrotech.org/

    It is free and open sourced and operates on Windows, Mac, and Linux. It looks as if the software...
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    Good day rmrymar, Although your CVT sounds a...

    Good day rmrymar,

    Although your CVT sounds a bit weathered, it is also possible that your N2 bus and/or some of the attached field devices may be causing issues with the bus... and so the CVT's N2...
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    Good day rmrymar, What don't you disconnect...

    Good day rmrymar,

    What don't you disconnect the N2 interface right at the NAE use this connection with your HVACPro/N2 Converter and access the entire N2 bus at one point? HVACPro is perfectly...
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    A lot of people are using Kicad...

    A lot of people are using Kicad (http://kicad-pcb.org/) which is free, but there are others too (Eagle, etc). In fact a number of parts distributors like Digikey and PCB manufacturers offer reduced...
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    Good day Orion242, :) ... your funny! I think...

    Good day Orion242,

    :) ... your funny! I think the next version will be smaller so one can attach it to their iPhone... an iLight as it were :)

    Cheers,

    Sam
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