BACnet Interface to Modbus Devices - Module

B6131


Collections: BACnet, Metering, MODBUS, Modules

Category: Modbus RTU, Modbus TCP

Type: BACnet


  • Cimetrics also offers a turn key full version of this product.  Click here for more information. It is strongly recommended that you try the full version B6130 first before developing with B6131.

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

    The B6131 module, based on the Lantronix XPort, provides a physically small BACnet/IP interface for Modbus RTU and/or Modbus TCP devices that can be built into your product. The B6131 configuration is done over Ethernet through onboard web pages of the product and can therefore be managed from a remote location. The B6131 configuration is simple and the device is up and running in minutes.

    Mapping between Modbus registers and BACnet objects requires the creation of a template. An engineer who is familiar with the Modbus register map of the target Modbus devices creates a template for each device using a proprietary Windows tool, which has drop down menus for easy object name creation and engineering unit selection. An appropriate template is loaded into the B6131 during the configuration process.

    This product features:

    Flexible connections
    • BACnet/IP connectivity using 10/100 Ethernet
    • Interfaces to 2 Modbus RTU/TCP devices
    • Easy to use template builder Windows utility for mapping

    Manageability
    • Build-in web server with secure login
    • Status page for diagnostics
    • Easy & informative naming convention
    • BACnet Device Object support

    Agility
    • Multi-vendor Modbus device support

    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

  • Communication: 
    • Prococols - Modbus RTU, Modbus TCP, TCP/IP, BACnet/IP 
    • Conforms to BACnet 2008 Standard
    • Supports Foreign Device feature to connect to multiple foreign Networks connections
    • Web browser configuration
    • Connect to multiple foreign Networks

    Ethernet:

    • BACnet/IP over Ethernet RJ45 standard
    • IEEE 802.3 10/100 Mbps
    • 10BaseT, 100BaseT,  RJ45 connectors
    • Half/Full duplex
    • 100m (max) CAT5 cable length.

    Modbus:
    • RS485 three wire connections for Modbus RTU
    • 10BaseT, 1External Modbus TCP via shared Ethernet port

  • This module is an elongated Ethernet connector which contains a powerful microprocessor with all memory and software required to support connection to a state-of-the-art Building Automation System network. Design your circuit board so this module can fit in and connect to the serial port of your host microprocessor (TTL level RS232).

    Most facilities which have a BACnet Building automation system also have a large number of Modbus devices which need to be attached to the BACnet network. To address that need, Cimetrics offers a range of templatized protocol converters , the latest of which is our B6131. The B6131 acts as a Modbus to BACnet interface - taking Modbus register data and exposing it to BACnet, just as Cimetrics’ B6031 device. It also includes sample templates from the range of known meters so there is often no need to spend time choosing what registers to expose from each device. In addition the B6131 allows the users to create their own loadable templates to map a Modbus RTU or Modbus TCP device into BACnet/IP. B6131 includes examples of some Modbus devices templates to give first time user best practices when choosing names, units and descriptions. All BACnet objects are meaningfully named and standardized for easier reading and integration into Building Automation Systems.

    Configuration steps include using a Windows tool to create a template (the tool has drop down menus for easier name creation and choosing units),  specifying a meter's IP address (if it is a TCP/IP meter), specifying the device’s Modbus ID, and loading a template created/supplied with the tool. The configuration can be saved to a .csv file for record keeping and data analysis.

     

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