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BACnet/IP to MS/TP Router - 5 Modules (B6001)

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  • Cimetrics also offers an OEM-customized version of this product. Click here for more information.

    The Cimetrics B6001, based on the Lantronix XPort, is a physically small BACnet/IP to BACnet MS/TP Router module that can be built into your product. It routes BACnet communications between BACnet/IP and BACnet MS/TP local area networks. This allows BACnet/IP devices to communicate with devices on a BACnet MS/TP network. Communication through the 10/100 Ethernet port conforms to the BACnet/IP standard which is complemented by many network friendly features such as DHCP and password protected browser based setup screens.  This device requires no point mapping, and configuration is simple.

    The B6001 is for customers who would like to avoid the hassle of BACnet development and yet have BACnet/IP to BACnet/MSTP routing ability in their products. Buying the B6001 would require customers to design their Printed Circuit Board to accommodate the B6001 (which is a Lantronix Xport). With the help of a professional Electrical Engineer one would follow the instructions and within this guide to do the layout on your board. Also, do keep in mind that your Circuit Board would need to have an appropriate RS-485 transceiver. Once this is done, the product will have the ability to be a BACnet/IP to BACnet/MSTP router in addition to any other functionality your product is designed for.


    • Connects BACnet/IP and MS/TP networks
    • BACnet code developed by the creators of the leading 3rd party BACnet protocol stack (BACstac)
    • Supports Foreign Device option to facilitate communications between BACnet/IP devices on networks with different IP Subnets
    • Web brower based configuration
  • Ethernet interface:
    10/100 Mbps: 10BaseT, 100BaseT
    Half/Full duplex
    100m (max) CAT5 cable length.
    LEDs: link and activity as labelled.

    MS/TP interface:
    ANSI/ASHRAE Standard 135 (ISO 16484-5) compliant
    9600, 19200, 38400, 76800 bps data rate
    EIA-485 twisted pair bus physical layer
    LEDs: activity

    General information:
    Power: 3.3VDC at 100-270 mA (idle to communication)
    Weight: 9.6 grams (0.34 oz)
    Material: Metal shell, thermoplastic case
    Operating temperature range: Commercial, 0°C to +70°C (32°F to 158°F)
    Storage temperature range: -40°C to +85°C (-40°F to 185°F)
    Relative humidity (operating): 5% to 95% non-condensing
    Non-operational shock: 500 g's
    Non-operational vibration: 20 g's
    Dimensions: 33.9 x 16.25 x 13.5mm (1.33 x 0.64 x 0.53 in) without pins and tabs
    RoHS-compliant product

  • Connect BACnet MS/TP devices to the central IP Network

    B6000 network diagramThe Cimetrics B6001 is a BACnet/IP to BACnet/MSTP Router. It helps route communications between BACnet/IP andBACnet/MSTP local area networks. This allows BACnet/IP devices to communicate with BACnet devices on a BACnet/MSTPnetwork.

    Diagnose BACnet MS/TP communications using an Ethernet based Protocol Analyzer 

    The B6001 can be used along with the Cimetrics BAS-o-matic Protocol Analyzer to capture, decode and analyze communications on a BACnet/MSTP network. This is very useful for troubleshooting.

Have a Question?

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Q: What is the difference between the Eplus MS/TP Router and the BR2 MS/TP Router?

A: The BR2 and B6000 models both function fine as a BACnet/IP to BACnet MS/TP Routers. The main differences are these:

  1. The B6000 costs less than 1/2 the price of the BR2 and works fine if all you need is basic datalink conversion.
  2. The BR2 version has BACnet BBMD functionality if the BACnet/IP connection will be used to connect remote networks together (for example if it connects to another network over the Internet).

Q: How do I find out the IP Address if I do not know what it is?

A: To find out the IP Address of the E+ device (if you changed it from the default of plug it into a hub using an Ethernet cable and connect your PC with BAS-o-matic installed into the same hub. If you do not have BAS-o-matic, please download a demo version from the Cimetrics web site at Once you have installed BAS-o-matic, go to start and Capture. Now recycle the power on the E+ device and in the BAS-o-matic you should see a broadcast being sent out by the E+. This broadcast will show you the IP address of the E+ device.

Q: How many MSTP devices does it support before it requires a repeater?

A: The standard specifies a maximum of 128 devices on an MSTP bus

Q: How far can you run the MSTP trunk before you require a repeater?

A: According to the MSTP standard, the length is roughly about 4000 feet before you would need a repeater. Please consult the MSTP standard for additional information.

Q: Do I need to do mapping?

A: No, there is no mapping required between BACnet/IP and BACnet MS/TP. You just need to configure normal IP issues such as IP address, subnet mask, etc. and the basic setup of MS/TP such as baud rate.

Q: What exactly will I need to know when I set this up?

A: You will need to know the following:

​Setup the BACnet/IP side:

  1. BACnet network number
  2. IP address
  3. Subnet mask
  4. Default gateway - usually keep the default
  5. UDP port number - usually keep the default
For the MS/TP side:
  1. MS/TP network number
  2. Node ID
  3. Baud rate
  4. MAX_INFO_FRAMES - usually keep the default
  5. MAX_MASTER - usually keep the default
  6. Usage Timeout - usually keep the default
  7. Reply Timeout - usually keep the default

Q: How do I log in?

A: Connect the B/IP to MS/TP Router to an Ethernet hub, and run another Ethernet cable from that hub to your laptop or PC. Make sure that the laptop or PC is the only other unit in this small LAN. NOTE: If you do not have a hub, you can use a "crossover cable" to connect directly between the B/IP to MS/TP Router and your laptop.

There are two ways to set your computer so that it can communicate with the B6000 Router.

1) If your PC is already set to use DHCP, then just connect to the Eplus device on an isolated network (the Eplus will supply your PC with an IP address using DHCP) or...

2) Set your PC's IP address to with a subnet mask of


Open your browser and enter the following URL:

You will be prompted to login:

Default User = admin
Default password = admin

From within the browser interface you can change all settings in the entry fields to configure your router

For improved access security, you should change your password from the default values. Make sure you SAVE your new password! When you press "Save Configuration" and “confirm” then the configuration process is completed.

Now disconnect your laptop and connect the B/IP to MS/TP Router into your BACnet network.

Q: How do I change the IP Address?

A: Once you have logged into the router via the web configurator, click on the menu "BACnet/IP Settings". Clicking on this will open a new page that will give you the options to enter the following information

  • IP Address
  • Subnet Mask
  • Default Gateway
  • UDP Port
  • DNET (or Destination Network Number)
After configuring the above parameters, click on "Save" followed by "Activate Configuration" followed by "Confirm". Skipping any of these steps will not save changes.

Q: How do I change my username and password?

A: Once you have logged into the router via the web configurator, click on the menu "change password". Clicking on this will open a new page that will give you the options to enter the following information

  • Login
  • Password
  • Confirm Password
After configuring the above parameters, click on "Save" followed by "Activate Configuration" followed by "Confirm". Skipping any of these steps will not save the changes you have made.
Warning: If you forget your password, there is no way to log in and the router needs to be reprogrammed by Cimetrics.

Q: What are the MS/TP Parameters under MS/TP Settings?

A: The MS/TP Settings page has the following parameters that need to be configured - Baud Rate The router supports baud rates of 9600, 19200, 38400, and 76800. Choose the appropriate baud rate suited for your network. - MAC Once connected, the router will become a node on the MS/TP network and hence needs a unique MAC address. NOTE: This MAC is a unique BACnet MS/TP address, this is NOT an Ethernet MAC address. - Max Info Frames This is the number of frames a node may send before passing on the token. We recommend that you leave this at the default value of 1. - Max Master This indicates the maximum number of Masters that can be available on an MS/TP Network. The default is the highest at 127. - Reply Timeout This is the maximum amount of time this node will wait for a station to reply to its confirmed request (255 - 300 milliseconds). We recommend that you leave this at the default value of 255. - Usage Timeout This is the maximum time that a node must wait for a remote node to begin using a token for replying to a Poll for Master frame (20-100 milliseconds). We recommend that you leave this at the default value of 20. - DNET This is the MS/TP network number to which the router is being connected. Change this according to your MS/TP network.

Q: How do I set the Termination and Biasing on the router?

A: The router is shipped with no Termination and Biasing.

The router has three jumpers inside (under the lid where it is marked MS/TP) which are placed in the off position.

If you would like to change this, simply remove the jumpers from their current position and move them to the next three pins (thre are only six pins so move them from the current three to the next three pins).

Do not remove any other jumpers as it will cause the router to cease functioning. If you are not clear on what to do, please contact Cimetrics Support.

Q: Does this router also support BACnet/Ethernet?

A: No, this Router does not support BACnet/Ethernet.

Q: Does this support Foreign Device or BBMD options?

A: No, this router supports neither the Foreign Device option nor the BBMD option.

Q: Do I need to use crossover or straight through Ethernet cables?

A: To connect the router directly to your pc, you will need to use a crossover cable. One such cable is usually included in your shipment.

If you are connecting to the router via a hub or switch, you will need to use striaght-through cables.

It is very important to follow the above convention.

Here are a few Ethernet Cable Tips:

  • A straight-thru cable has identical ends.
  • A crossover cable has different ends.
  • A straight-thru is used as a patch cord in Ethernet connections.
  • A crossover is used to connect two Ethernet devices without a hub or for connecting two hubs.
  • A crossover has one end with the Orange set of wires switched with the Green set.

Q: What are the specifications for the power supply to be used?

The router takes in a 9V - 1.1A DC power connection. A power supply is always included with your purchase. Using any other power supply will void the warranty of the product.

For international (other than North America)customers, we provide an optional International Power supply that can be purchased. This takes an input of 90 to 264 VAC, and supplies 9VDC 1.1A.

Q: How do I log in to the E+ Device?

A: To log into the E+ Device, you would need to connect to the Ethernet port on the product using JUST one PC. If you have a hub, you can connect the E+ and your PC to the hub. If you do not have a hub you could use a CROSSOVER cable to directly connect to the E+. If your PC is set to "DHCP on" (which it probably is !) Then connect your PC to the E+ and the E+ will supply your PC with a proper IP address. Open your browser, enter and then use “admin” and “admin” (without the quotes) to see the setup screens.

If this doesn't work, then manually set your PC's address to with a subnet mask of in the same subnet as the IP address you previously programmed the E+ to be on) and then open up your browser and type in the IP Address of the router i.e. or "the IP you set before). The username and password are “admin” and “admin” (without the quotes) unless they were changed during a previous setup.