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  1. Replies
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    There is work in process at S4 to offer a...

    There is work in process at S4 to offer a replacement for the Metasys Passthrough mode for HVAC Pro and the other Metasys utilities. It is indeed a challenge with the constraints of the N2 protocol...
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    You might also consider our S4 Open Appliances,...

    You might also consider our S4 Open Appliances, the S4 Open: OPC-N2 Router or S4 Open: BACnet-N2 Router for this application. This approach puts the management of the N2 bus in the local building and...
  3. Testing BACnet BBMD and Foreign Device Registration

    S4 is testing BBMD and Foreign Device Registration support in our S4 Open: BACnet-N2 Router. I'd like to hear from anyone who has a BACnet application capable of initiating Foreign Device...
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    I think the point Integrator was trying to make...

    I think the point Integrator was trying to make is that the default assignment of Device ID in the NAE is 500. If you have multiple devices with the same device ID you run the risk of confusing...
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    You should be able to get this to work....

    You should be able to get this to work. Especially with all the expertise available on this forum. If you end up needing an alternative take a look at our S4 Open: BACnet-N2 Router if the field...
  6. Information needed on Metasys SC-9100 N2 device

    Our business is expanding in Europe and we recently found a N2 device called the SC-9100. It appears that this device was primarily soled into the European marketplace. Our S4 Open: BACnet-N2 Router...
  7. Thread: hvacpro

    by steves4
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    Both products mentioned in this thread, 485TBLED...

    Both products mentioned in this thread, 485TBLED and S2485USB work really well. We use both in our test lab environment for accessing the N2 bus on a regular basis.
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    You're welcome. I'm glad that we could be of help.

    You're welcome. I'm glad that we could be of help.
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    Confirmed. You do need to power cycle the unit...

    Confirmed. You do need to power cycle the unit after changing the address switches.
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    Everyone else has given you some great advice....

    Everyone else has given you some great advice. Many times issues like this are resolved by going back to basics and checking the details. We work with both Facilitator and Metasys branded devices in...
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    It sounds like you are getting some great advice....

    It sounds like you are getting some great advice. If the above actions do not bring the devices online then start looking towards a possible wiring problem with the N2 bus or a repeater on the bus...
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    I tried to edit my last post but somehow it...

    I tried to edit my last post but somehow it failed. Let me try this way.

    Controlgeek is correct. My contact info is in my profile I can send you additional information about the technology and the...
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    Since we wrote the code to implement our BACnet...

    Since we wrote the code to implement our BACnet IP interface we had a lot of flexibility. NCM Transactions (yes, N2 transactions) can participate in the BACnet priority array mechanism so that you...
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    Controlgeek is correct. My contact info is in my...

    Controlgeek is correct. My contact info is in my profile. I recently wrote a blog article about an interim solution for "Passthrough" support and we are close to offering an on-board "Passthrough"...
  15. Thread: New to JCI

    by steves4
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    JCI has most of their documents available on...

    JCI has most of their documents available on their web site and a very effective search engine at http://cgproducts.johnsoncontrols.com/default.aspx?main.aspx&2.
  16. Thread: Niagara Summit

    by steves4
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    I'm attending for the first time this year. I'd...

    I'm attending for the first time this year. I'd appreciate any advice the veterans can provide me about how to get the most out of the event. I'd also like to talk with anyone considering...
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    Go to the JCI site and search for a document...

    Go to the JCI site and search for a document called N2 Communications Bus. It is ancient but all of the concepts about the N2 bus are still valid. It shows lots a good examples of how to set up a N2...
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    Contact David Hageman at Apex Custom Solutions....

    Contact David Hageman at Apex Custom Solutions. They have done a lot of work on reporting and conversions of the NCM database.
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    The N2 bus is electrically a RS-485 network. So,...

    The N2 bus is electrically a RS-485 network. So, you cannot look at one device in isolation. Definitely, the "T" tap is a problem. As several people mentioned the N2 bus needs to be strictly daisy...
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    If, after you investigate the NAE, you find that...

    If, after you investigate the NAE, you find that it can't do what you need contact S4. My contact information is in my profile. With our S4 Open: BACnet-N2 Router you can keep the NAE in place if you...
  21. I can confirm that we are working on a...

    I can confirm that we are working on a replacement for the "Passthrough" mode. It will be available with any of our S4 Open Appliances. We are shooting for next quarter. There are articles on our web...
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    My copy is also dated 2001. Is there a specific...

    My copy is also dated 2001. Is there a specific question you are trying to answer?
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    If you choose our S4 Open: BACnet-N2 Router for...

    If you choose our S4 Open: BACnet-N2 Router for the Johnson N2 integration each N2 device will be published as a BACnet device under a virtual BACnet Network. You'll still need to use HVAC Pro and...
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    If the field devices are N2 we can help you out...

    If the field devices are N2 we can help you out with a much cleaner integration solution. I'm looking forward to more information about these devices.
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    The DX-9100 has an operation called "Hold Mode"....

    The DX-9100 has an operation called "Hold Mode". This is about as close as you can get to the equivalent of the N2 Open Override and Release operations. This would allow you to directly manipulate...
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