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  1. Just a FYI in anyone is interested... For...

    Just a FYI in anyone is interested...

    For RS-485 communication the shield is actually not needed. The reason being is that RS-485 is a differential signaling protocol...in other words the digital...
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    569

    Bingo! It is funny how "old school" business...

    Bingo! It is funny how "old school" business practices just make sense. It is unfortunate that these practices are becoming rarer these days.

    Cheers,

    Sam
  3. Good day mscheffel, Your bus reference should...

    Good day mscheffel,

    Your bus reference should not be Earth grounded... this can cause all sorts of issues and can actually be dangerous in the event of an electrical failure within a particular...
  4. Google's Open Source Network test Tool - NoGoToFail

    Good day All,

    I thought that this might be of interest to some of you.

    Cheers,

    Sam

    http://www.zdnet.com/google-releases-nogotofail-tool-to-sniff-out-known-https-flaws-7000035445/
  5. Thread: HVAC Pro

    by s2sam
    Replies
    36
    Views
    1,784

    Good day Pascone10, Another virtual machine...

    Good day Pascone10,

    Another virtual machine you can use is Virtual Box which is free (https://www.virtualbox.org/). That being said the VM is only one element you need... you will also need a...
  6. Thread: HVAC Pro

    by s2sam
    Replies
    36
    Views
    1,784

    Good day Pascone, I cannot comment...

    Good day Pascone,

    I cannot comment specifically about the Digiport...but you should have to install the drivers twice... once in Win7 (64 bit) and then again in XP Mode. Remember XP Mode is a...
  7. Replies
    4
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    298

    Good day rjk_cmh, The RPI is tailored and...

    Good day rjk_cmh,

    The RPI is tailored and manufactured for a completely different market and so the components used, although similar, are actually different. For example:

    1. RPI's sales...
  8. Replies
    4
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    298

    Good day rjk_cmh, Indeed, Ethernet has a lot...

    Good day rjk_cmh,

    Indeed, Ethernet has a lot of benefits and is extremely well supported by a huge number of companies that provide a lot of equipment. However, pushing Ethernet all the way down...
  9. Replies
    39
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    2,081

    Good day Fisha, There could be a lot of...

    Good day Fisha,

    There could be a lot of reasons for this. Firstly, the data corruption, retries, etc could be masked by the controllers and so you may not see this on the BAS. Secondly, the...
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    Good day TechServices, I am unsure what you...

    Good day TechServices,

    I am unsure what you are asking... However, RS-485 is supposed to daisy-chain connected like what you have already done. Connecting the system as what is proposed creates...
  11. Replies
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    2,081

    Good day Aaron, Given what the customer has...

    Good day Aaron,

    Given what the customer has said, it would seem that either you have some flakey controller(s). If a controller/system works for a while and then at some time requires a power...
  12. Replies
    39
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    2,081

    Good day Aaron, If I understand your response...

    Good day Aaron,

    If I understand your response correctly... you changed the data rate of the system and added a router to the system and then the problems resulted? If so, then either the router...
  13. Replies
    39
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    2,081

    Good day Fisha, If the system has had 0...

    Good day Fisha,

    If the system has had 0 changes... i.e. no baud rate changes, new controllers added/deleted, the cable has also not been compromised (cut, spliced, submerged in water, etc) ...Then...
  14. Replies
    39
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    2,081

    Good day Fisha, Can you provide the timebase...

    Good day Fisha,

    Can you provide the timebase and voltages used in your captures? This info is on the captures, but are too small for me to read them clearly. That being said, the issue(s) could...
  15. Good day Orion242, I picked up a perfect...

    Good day Orion242,

    I picked up a perfect almost new FX-60 for about $460 on Ebay. However, this is not overly common. That being said, I only use it internally for testing, etc.

    Cheers,

    Sam
  16. Replies
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    388

    Good day Integrator, Thank you for the...

    Good day Integrator,

    Thank you for the compliment!

    Indeed, HVACPro tunneling over Ethernet will not work with the S2N2E. Is it possible for it to work? Yes, but the inherent Ethernet latencies...
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    388

    Good day Ex-Man, If you do a search on here...

    Good day Ex-Man,

    If you do a search on here you will find some info on this. In brief, using simple RS485 to Ethernet convertors is rarely successful unless you have a very specific and limited...
  18. Thread: Cylon buys AAM

    by s2sam
    Replies
    16
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    1,002

    Good day Control Man, Perhaps one of the...

    Good day Control Man,

    Perhaps one of the reasons for this is the market size. Although Canada is huge in Area, it only has about 1/10 the population of the US (and thus more buildings, etc) and...
  19. Thread: hvacpro

    by s2sam
    Replies
    14
    Views
    1,327

    Good day michael26, Indeed, this would be...

    Good day michael26,

    Indeed, this would be easiest and most cost effective solution. However, finding a replacement device may not be that easy. A number of older JCI controllers have been...
  20. Thread: hvacpro

    by s2sam
    Replies
    14
    Views
    1,327

    Good day Michael86, For WinXP you need a...

    Good day Michael86,

    For WinXP you need a minimum HVACPro version of 8.04b... Anything newer than that will work on XP. As for the old cablepros... I believe (I could be wrong though) that as...
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    734

    Good day Matrix, Indeed, there are cases where...

    Good day Matrix,

    Indeed, there are cases where one terminating the drain in other ways (like you mentioned) is beneficial to those networks that are exceptionally cranky... and even some cases...
  22. Replies
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    734

    Good day All, To those that do not agree with...

    Good day All,

    To those that do not agree with my post about avoiding Earth grounding the RS-485's Reference lead... I have to ask them what purpose do they think Earth Grounding achieves on a...
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    734

    Good day just_opinion, I just posted my...

    Good day just_opinion,

    I just posted my response to doing this in my previous post.

    Cheers,

    Sam
  24. Replies
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    734

    Good day TechServices, That is correct... you...

    Good day TechServices,

    That is correct... you typically should not connect the Reference lead to Earth Ground. There are a multitude of variables that affect this decision, but typically avoiding...
  25. Replies
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    734

    Good day TechServices, The RS-485 Reference is...

    Good day TechServices,

    The RS-485 Reference is used to maintain a common or "Reference" RS-485 transceiver ground between the various interconnected RS-485 devices and is not actively part of the...
  26. Replies
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    1,071

    Good day Ynut204 Agreed. They should be able...

    Good day Ynut204

    Agreed. They should be able to provide you with what their input accuracy is. It is certainly calculable, but does take effort. Not saying that this is the issue, but some...
  27. Replies
    16
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    1,071

    Good day Orion242, Your thought process is a...

    Good day Orion242,

    Your thought process is a good one. However, this approach does have some level of error, as the Meter and the Controller will most likely have a different input design which...
  28. Thread: N2 Wiring?

    by s2sam
    Replies
    6
    Views
    342

    Good day Cagey57, You are too kind... After 24...

    Good day Cagey57,

    You are too kind... After 24 or so years using and designing RS485 systems, one tends to pick up a little bit of info along the way ... That being said, there is still more to...
  29. Thread: N2 Wiring?

    by s2sam
    Replies
    6
    Views
    342

    Good day, Ideally two of the three wires being...

    Good day,

    Ideally two of the three wires being a twisted-pair and the third used as a reference, low capacitance (around 12pf per foot), and ensure that the wire has a characteristic impedance...
  30. Good day Integrator, I am not sure what high...

    Good day Integrator,

    I am not sure what high end Fluke you used, but if it was designed for Ethernet then this is not the right tool. Although Ethernet is (several) twisted pairs, its electrical...
  31. Good day Davem, A TDR is pretty slick. In...

    Good day Davem,

    A TDR is pretty slick. In fact, I really like demonstrating a little bit of what a TDR can do to those that are skeptical of how wires look different at higher frequencies. What...
  32. Good day Davem, You can certainly do this, but...

    Good day Davem,

    You can certainly do this, but it is a lot of effort to disconnect all of the controllers connected to the bus. If you have and know how to use a TDR you can determine each...
  33. Good Day HVAC_Marc, The device works by...

    Good Day HVAC_Marc,

    The device works by generating a very fast electrical waveform and then measures/captures the reflected signal that occurs. By interpretation of the reflected wave a variety of...
  34. Good day Integrator, As cLogic stated ... a...

    Good day Integrator,

    As cLogic stated ... a TDR would be needed. However, even using a TDR you will still need to know the cable's impedance characteristics (i.e. characteristic impedance,...
  35. Good day 54885488, Indeed the current...

    Good day 54885488,

    Indeed the current version/design of HVACPro does not lend itself to doing what you (and others) want for a number of reasons. However, there is a very good probability that...
  36. Thread: jace branding

    by s2sam
    Replies
    53
    Views
    3,039

    Good day Orion242, Who cares? ... basically...

    Good day Orion242,

    Who cares? ... basically any firm that does not currently make their own hardware and simply wishes to rebrand a jace. There is lot of effort in designing, maintaining,...
  37. Thread: jace branding

    by s2sam
    Replies
    53
    Views
    3,039

    Good day prtadko, I thought that there was...

    Good day prtadko,

    I thought that there was some substance to this rumor, as it came from several sources with some stating that it was told to them by Tridium staff.

    Anyway, I understand the...
  38. Thread: jace branding

    by s2sam
    Replies
    53
    Views
    3,039

    Good day jbeckham, Just a heads up, but there...

    Good day jbeckham,

    Just a heads up, but there have been rumors that Tridium may change their direction with regards to their Hardware. Specifically that Tridium may just go entirely to an IP...
  39. Replies
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    1,184

    Good day 54885488, You are most welcome! I...

    Good day 54885488,

    You are most welcome!

    I have not examined the B&B Ethernet devices and so I cannot comment on them. That being said, I have used some of their other simpler products and for...
  40. Replies
    22
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    1,184

    Good day 54885488, You are quite correct in...

    Good day 54885488,

    You are quite correct in that the issue had to do with remotely interfacing the N2 bus. In your case, I think the facilitator has a simple user interface that uses the serial...
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    1,098

    Good day WilleyTech, You are most welcome! ...

    Good day WilleyTech,

    You are most welcome! Given your needs, then your options are vast... which is both good and bad, as that means there are lots to review/consider. For RS485 applications...
  42. Replies
    16
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    1,098

    Good day WilleyTech, Sadly, your question is...

    Good day WilleyTech,

    Sadly, your question is way too vague... i.e. you need consider:

    1. Bandwidth requirements, number of channels
    2. What are your functional needs (i.e. do you need...
  43. Good day Shailesh, Depending upon your needs...

    Good day Shailesh,

    Depending upon your needs we have a very slick and inexpensive Touch Screen Interface for the N2 Bus, called the S2UI28-N2S. The device can support other protocols as well, but...
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    3,548

    Good day Xcel, Thanks for the info! Can you...

    Good day Xcel,

    Thanks for the info! Can you tell me how long those UNTs were in service before the failure? I ask, as the UNT core design is quite dated. That being said, stuff does happen......
  45. Replies
    43
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    3,548

    Good day XcelTech, I recognize that JCI's gear...

    Good day XcelTech,

    I recognize that JCI's gear has its quirks (as do they all), but can you elaborate on what failures you have seen? I ask, as I have dismembered and analyzed a lot of various...
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    2,130

    Indeed, $3.2B for a company that has only two...

    Indeed, $3.2B for a company that has only two known products is really strange... Either there is something that is not publicly known about Nest or Google just has too much $$$ in their hands and...
  47. Replies
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    1,614

    Good day Waxoon, Can you clarify your question...

    Good day Waxoon,

    Can you clarify your question a little more? Are you asking the bandwidth requirements for the Wifi Connectivity portion? I say this, as you mention that the site's Internet...
  48. Good day Isshin, You are most welcome. In...

    Good day Isshin,

    You are most welcome. In response to your friends comments about programming in C++ and building up your own controller... Indeed you can do this, but there are a number of...
  49. Good day Isshin, As Orion pointed out and you...

    Good day Isshin,

    As Orion pointed out and you are now seeing, the situation you have is more complex than what typical residential controllers can offer. Can you still make it all work using one...
  50. Thread: Repair a Jace

    by s2sam
    Replies
    25
    Views
    1,916

    Good day BAS-atechs, Sorry you misunderstood...

    Good day BAS-atechs,

    Sorry you misunderstood me... I was referring to our own products only...we do not have any of this for JCI or anyone else's products.

    Cheers,

    Sam
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