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  1. #1
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    MODBUS-TCP to BACNET/IP

    Any recommendations on a protocol gateway for converting a few MODBUS TCP points to BACNet IP on the same physical network? Here's the situation:

    We are wanting to start doing some power monitoring of some loads throughout our old central plant (initially the 5 large chillers). We will be getting a BacNET client license shortly for our BMS (Honeywell EBI 310). Most power meters we've found, than will fit in a standard ANSI or DIN meter space, are all Modbus based. The only decent Bacnet one we've found is the Shark 100B, which does speak Bacnet IP. The issue is connecting up a physical network is going to be a nightmare, so we are wanting to instead go wireless with it. The only wireless meters I've found that would work are the Shark 100S, which is ModBus TCP over wifi. The options then become, either purchasing yet another interface license for the EBI server, or translate the very minimal number of concerned points to bacnet via a gateway/translater. (It would seem this is even something that could run in software on the server, if such a software exists).

    Any ideas?

  2. #2
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    Dec 2006
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    Hartford, Connecticut
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    You may want to look at Veris. I am doing a project now using their meters on a Modbus integration. I am using the E50C2. There are several models to choose from. Modbus and BACnet are standard with these meters. They will be coming out with a Lon version in the near future. They offer additional gateways if you are going to use Modbus TCP or BACnet IP.

    For stand-alone applications without a BMS, these meters have their own data logging capability.

    Here is a link to the product data sheet of the model I am using. There is a chart on page 2 of the different options.

    http://www.veris.com/docs/Datasheets/e5x_d02121.pdf

  3. #3
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    I think I looked at Veris, but they didn't have anything that would fit in a standard meter opening (other than the very expensive H84xx series units). They also don't offer a wireless solution (ridiculous that I need to go wireless in a chiller room, but it would add 6-8 months of OSHPD review to the project to hang some 1/2 conduit through the room to the starter cabinets - and people wonder why healthcare is so expensive)...

  4. #4
    We have used the BB-7010-1 from Control Solutions Inc quite a few times now.

    http://csimn.com/CSI_pages/BBIPXM.html

    They work great and are not too expensive.

    Cheers

  5. #5
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    Quote Originally Posted by waldoverkill View Post
    We have used the BB-7010-1 from Control Solutions Inc quite a few times now.

    http://csimn.com/CSI_pages/BBIPXM.html

    They work great and are not too expensive.

    Cheers
    I do like csimn - they, unlike many controls companies, seem to be rather riendly to the end user, and I will likely be purchasing a couple of their addme io modules in the coming months - but the babel box stuff looks to be a bit expensive to me. The Contemporary Controls BASGLX-M1 seems to be every bit as capable, and almost half the price. Just wondering on experiences with them/others.

  6. #6
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    I have had great experiences with Contemporary Controls with both their BACnet MSTP to IP routers, Fiber to Ethernet converters as well as IP / Ethernet switches, and from that experience would recommend them. Most BACnet manufacturers have there own gateways to MODbus and I'm surprised HW doesn't have a in house solution (other then a JACE).

    kontrol out
    "Open is as open does." - Forrest Gump
    "Can't we all just get a Lon?" - Garry Jack
    "BACnet: integration or interrogation?" - The Janitor
    "Open protocols? You can't handle open protocols!" - 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 http://www.youtube.com/watch?v=U7fjDS0jKiE

  7. #7
    Quote Originally Posted by CraziFuzzy View Post
    I do like csimn - they, unlike many controls companies, seem to be rather riendly to the end user, and I will likely be purchasing a couple of their addme io modules in the coming months - but the babel box stuff looks to be a bit expensive to me. The Contemporary Controls BASGLX-M1 seems to be every bit as capable, and almost half the price. Just wondering on experiences with them/others.
    Where do you buy the BASGLX from. The price on their website is more expensive than CSIMN

  8. #8
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    Quote Originally Posted by waldoverkill View Post
    Where do you buy the BASGLX from. The price on their website is more expensive than CSIMN
    They have a direct order link at the bottom of the page. $395 for the CControls, $559 for the CSIMN...

  9. #9
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    Quote Originally Posted by kontrolphreak View Post
    I have had great experiences with Contemporary Controls with both their BACnet MSTP to IP routers, Fiber to Ethernet converters as well as IP / Ethernet switches, and from that experience would recommend them. Most BACnet manufacturers have there own gateways to MODbus and I'm surprised HW doesn't have a in house solution (other then a JACE).

    kontrol out
    Honeywell doesn't really need a protocol converter, as EBI can speak Modbus TCP directly, if properly licensed. I was trying to avoid purchasing the modbus license for just a few devices (which would cost more than the converter/gateway would). In the end, it looks like we've found an existing low voltage conduit path from the starters to the controls, so we may not need to go that route anyways, and can simply get the native bacnet meters (Shark 100B).

  10. #10
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    how do you order shark 100B, it does not show in their web store?

  11. #11
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    Quote Originally Posted by amigo View Post
    how do you order shark 100B, it does not show in their web store?
    Not sure yet.. just emailed them for a quote. Hopefully hear back tomorrow sometime. I also found it odd that just the 100S (Modbus wi-fi) are available online. We do have a few of the basic Shark 100's throughout the facility (on generators, and solar inverters), but they were not purchased by us, but by vendors.

  12. #12
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    and so far what do you think of them?

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