Modbus/TCP to Modbus/RTU Router

B2000


Collections: BACnet, Legacy

Category: B2000, BACnet, Modbus RTU, Modbus TCP, RS-485

Type: BACnet


  • A B2000 router connects Modbus TCP/IP and Modbus RTU RS-485 networks. B2000 is a part of the E+ series of applications solutions. These solutions help the owners to save money and improve building comfort by integrating various protocol devices with the existing Building Automation Systems.

    The configuration is done over Ethernet through onboard web pages in the product and can therefore be managed from a remote location. The configuration is simple and the router is up and running in minutes. Modbus RTU data is passed to the Modbus/TCP interface transparently, so there is no need for mapping. 

    B2000 is housed in the professional ragged metal case and can be mounted standalone, on a wall using wall bracket kit or on a DIN rail. It has one RS485 connector for connecting 4 Modbus RTU meters and one Ethernet 10/100 RJ45 connector.

    The Ethernet port uses a standard shielded RJ45 connector with integral LEDs. A power data LED blinks green when the data is being passed.

    Flexible connections:

    • Conforms to Modbus TCP and Modbus RTU standards
    • Supports up to 126 Modbus RTU devices/meters
    • Standard RS485 three wire connection

    IP network support:

    • Built-in web server
    • Status page for diagnostics
    • Secure login to web configuration and status interfaces

    Standard communication:

    • 10/100 Mbps Ethernet
    • Extremely easy system installation
    • 9VDC at 1A input
    • Standard power supply included allows use of 60Hz 120 VAC mains
    • International power supply available
    • Data and Power indicators on case
  • B2000 closup

    Specifications:

    • Adapter Input Voltage: 100 to 240 VAC @ 10W, 50/60 Hz
    • Operating temperatures: 7 to 40C
    • Dimensions: 102 x 127 x 26 mm (4.0 x 5.0 x 1.0 inches)
    • Connections: Ethernet RJ45, modular screw terminal, DC power, standard RS485 three wire connections
    • System LED: power LED and data LED

    Ethernet:

    • IEEE 802.3 10/100 MBPS
    • 10BaseT, 100BASETX phsyical. RJ45 connectors
    • Half/Full duplex
    • 100m (max) CAT5 cable length.

    Options:

    • wall bracket kit
    • DIN rail mounting kit

    Modbus Details:

    • Confirms to Modbus TCP and Modbus RTU standards
    • Modbus RTU baud rates: 300 to 115K - default 9600 8N1
    • Supports up to 32 Modbus RTU devices
  • b2000

    Connecting Ethernet Automation and Field Level Networks 

    One advantage of Modbus is that the same protocol can operate at both the industrial control level and the field level where field meters and panels are residing.  Modbus TCP protocol is a variant of the Modbus family of simple, vendor-neutral communication protocols intended for supervision and control of automation equipment. The most common use of the Modbus TCP protocols are for Ethernet attachment of PLCs, I/O modules, and 'gateways' to other simple field buses or I/O networks. The field devices are usually Modbus RTU meters and field buses. B2000 allows bridging the two protocols together and have Modbus messaging in an 'LAN' or 'WAN' environment using the TCP/IP protocols.

    B2000 acts as a Modbus RTU/ASCII Master and can connect to several Modbus slave devices (up to 126). The Modbus TCP side acts as Slave. A cluster of Modbus RTU devices located at different parts of a building can be connected to the same Modbus TCP network but at different locations using separate B2000 routers. Then the user can bring these Modbus RTU devices into the workstation or run tools like widgets to look at the data.

    Versalite Web-based controller 

    b2000_webinterface

    A resident web server allows for commissioning, and troubleshooting via a standard web browser. B2000 devices support various protocols such as HTTP, IP, UDP, Modbus TCP.  All E+ series devices have a unified web interface and once you configure one of these devices you will have the same experience configuring others.

    The Core Settings page allows the setting of IP address, mask, default gateway and Modbus RTU parameters for B2000.

    The IP Access page allows the setting of permissions that determine which devices can access the router.

    User account names and passwords can be set on the  Authorization settings page

    The Error log and Statistics page provides information for easy troubleshooting

Product Q&A

Ask a Question
0
Q: How do I use the U+4 with a BACnet client?

A: The U+4 hardware is an intelligent USB to fieldbus interface. This allows you to use your PC's USB port to connect to an MSTP (RS485) network. The U+4 (along with a BACnet client like the Cimetrics BACnet Explorer) can now communicate with a BACnet/MSTP network to write and read values.

The following needs to be done for a connection;

- In your LAN properties, select your NIC interface and get into Properties | uncheck the Cimetrics BACstac protocol

- Install the driver for the U+4 on your PC

- Plug the device into your PC (In the USB port).Once the U+4 is plugged into the PC in the USB slot, this will add an extra Local Area Connection in your Network Places that corresponds to the U+4. In order to configure settings, you would need to select this Local Area Connection.

Once you are in the Local Area Connection, RT Click | Properties |Configure | Advanced, you will see all the options given below. Please configure according to your use.


Card Speed:

Select needed Baud rate(in the range from 1200 to 115200 bps) from the list

Filter:

-"Directed BACnet NPDU only" - to receive only directed or Broadcast NPDU. (accepted by any BACstac version). MS/TP information is absent.

Node Address:

Set address of this node in the range [0-254]. IMPORTANT Note: Master node must be in the range [0-Max_master]

Node Type:

Select "Master Node".

Master Mode takes part in token passing and is needed for the BACstac. In this mode, you would be able to completely discover the MS/TP network by using the BACnet Explorer.


Max_info_frames[1-10]:

Leave at default settings.

Max_master[1-127]:

Leave this at the default settings.


Once the above settings are done, you should be able to start the BACnet Explorer and discover devices from a BACnet/MSTP network.

1
Q: How does the U+4 Field interface get its power?

A: The U+4 Device draws its power from the USB cable and hence will not require any other power source.

2
Q: How do I use the U+4 with the BAS-o-Matic to sniff a network?

A: The U+4 hardware is an intelligent USB to fieldbus interface. This allows you to use your PC's USB port to connect to an MSTP (RS485) network for sniffing the MSTP Network. This sniffing can be done with the help of the Cimetrics Sniffing software called as the BAS-o-Matic.

The following needs to be done for a connection;

  • Install the driver for the U+4 on your PC
  • Plug the device into your PC (In the USB port).Once the U+4 is plugged into the PC in the USB slot, this will add an extra Local Area Connection in your Network Places that corresponds to the U+4. In order to configure settings, you would need to select this Local Area Connection.
Once you are in the Local Area Connection, RT Click | Properties |Configure | Advanced, you will see all the options given below. Please configure according to your use.

Card Speed:

Select needed Baud rate(in the range from 1200 to 115200 bps) from the list

Filter:

Use the filter option to select what kind of packets you want to capture or receive:
  • "All" - to receive all packets (including all types of MS/TP frames and error notifications)
  • "All BACnet data" - to receive all MS/TP frames transporting BACnet NPDU.
  • "Directed BACnet data" - to receive MS/TP frames with BACnet NPDU, destined only to our Node Address and Broadcasts.
  • "Directed BACnet NPDU only" - to receive only directed or Broadcast NPDU. (accepted by any BACstac version). MS/TP information is absent.
Node Address:

Set address of this node in the range [0-254]. IMPORTANT Note: Master node must be in the range [0-Max_master]

Node Type:

Select "Monitor Node". The "Monitor" mode can be used for Bas-o-matic only. This mode would be used if you are using the fieldbus interface purely for sniffing purposes only.


Max_info_frames[1-10]:

Leave at default settings.

Max_master[1-127]:

Leave this at the default settings.


Once the above settings are done, you should be able to start the BAS-o-Matic and start capturing communications from a BACnet/MSTP network.


Related Items

cimetrics.com Legal Terms and Conditions

June 29, 2016

cimetrics.com (the "Site") is owned by Cimetrics Inc. ("Cimetrics").

PLEASE READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS SITE.  YOU MAY NOT USE THIS SITE IF YOU DO NOT ACCEPT THE TERMS AND CONDITIONS.

Terms of Use

The information herein provided is for general informative purposes only, and no warranties or representations are made with respect thereto. The information may contain inaccuracies or typographical errors.  The information provided is subject to change at any time, and without notice. Changed information may include, but is not limited to, technical specifications and pricing. Binding declarations are only given after detailed enquiries.

BECAUSE THE INFORMATION IS NOT WARRANTED, ALL LIABILITY FOR THE ACCURACY OF THE INFORMATION IS EXPRESSLY EXCLUDED.

IN NO EVENT SHALL CIMETRICS, ITS OFFICERS, DIRECTORS, EMPLOYEES, PARENTS, AFFILIATES, SUCCESSORS OR ASSIGNS, BE LIABLE FOR ANY DIRECT, INDIRECT, PUNITIVE, INCIDENTAL, SPECIAL, CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF USE, DATA OR PROFITS, ARISING OUT OF OR IN ANY WAY CONNECTED WITH THE USE OR PERFORMANCE OF THE CIMETRICS SITE, WITH THE DELAY OR INABILITY TO USE THE CIMETRICS SITE OR RELATED SERVICES, THE PROVISION OF OR FAILURE TO PROVIDE SERVICES, OR FOR ANY INFORMATION, SOFTWARE, PRODUCTS, SERVICES AND RELATED GRAPHICS OBTAINED THROUGH THE CIMETRICS SITE, OR OTHERWISE ARISING OUT OF THE USE OF THE CIMETRICS SITE, WHETHER BASED ON CONTRACT, TORT, NEGLIGENCE, STRICT LIABILITY OR OTHERWISE, EVEN IF CIMETRICS HAS BEEN ADVISED OF THE POSSIBILITY OF DAMAGES. BECAUSE SOME STATES/JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, THE ABOVE LIMITATION MAY NOT APPLY TO YOU. IF YOU ARE DISSATISFIED WITH ANY PORTION OF THE CIMETRICS SITE, OR WITH ANY OF THESE TERMS OF USE, YOUR SOLE AND EXCLUSIVE REMEDY IS TO DISCONTINUE USING THE CIMETRICS SITE.

Passwords

If you have been given a Password in order to gain access to certain information on this Site, or any other affiliates’ website, then you agree, as a condition of receiving said Password, that you shall keep the Password confidential. You shall only disclose the Password to your employees or agents who have a need to know. You are solely responsible for all activities that occur using your Password.

If you become aware of any unauthorized use of your Password, you agree to notify Cimetrics immediately.  Cimetrics reserves the right to revoke your Password access at any time for any reason whatsoever.

Copyrights and Trademarks

All information provided on the web pages of Cimetrics.com is protected by copyright. It is prohibited to copy, process, modify or commercially distribute this information without the express written permission of Cimetrics.

Analytika, Infometrics, Metermetrics, BACstac, BACstac/DN, and BAS-o-matic are trademarks or registered trademarks of Cimetrics.  The Analytika, Cimetrics, Infometrics and Metermetrics logos are trademarks or registered trademarks of Cimetrics.  All other trademarks are owned by their respective companies.

Links to Other Websites

This Site may from time to time contain links to other websites ("Linked Site") or other Internet information sources ("Third Party Source"). These links are provided solely as a convenience to users of this Site and do not constitute an endorsement, sponsorship or recommendation by Cimetrics.  Each Third Party Source or Linked Site may have its own terms of use and privacy policy. Cimetrics is not responsible for the content, availability, or policies of any Linked Site or Third Party Source, or any additional links contained therein.

Privacy

Please read the privacy policy for this Site, which is incorporated into these Terms and Conditions by reference.