BACnet Gateways

One of the most common applications of a BACnet gateway is to translate Modbus RTU or Modbus TCP registers into BACnet objects on either a BACnet IP network or BACnet MS/TP network. BACnet protocol is not commonly found in industrial PLCs, but Modbus is. Therefore, the Modbus to BACnet gateway enables use of a standard industrial PLC on a BACnet network in a building automation application.

A variety of other industrial equipment, most commonly VFDs and power measurement equipment, is readily available with Modbus protocol. Using a Modbus to BACnet gateway opens the door to using this type of equipment in a building automation application as well.

BACnet protocol converters or gateways in general convert BACnet protocol to other non-BACnet network protocols. BACnet gateway devices in the Control Solutions Babel Buster family of gateways include Modbus to BACnet gateways or protocol converters, LonWorks to BACnet gateways or protocol converters, and BACnet to SNMP gateways.

Protocol conversion between BACnet and non-BACnet devices is more than just retransmitting data. Data is encoded differently in BACnet versus Modbus for example, and the gateway or protocol converter needs decode data received with one protocol, and re-encode it for transmission to the other. Data flow is generally bidirectional, subject to rules of the protocol.

BACnet gateways are used to connect non-BACnet devices to a BACnet network, or vice versa. Translating BACnet IP to BACnet MS/TP or vice versa is also a common application of a BACnet gateway, and can be done with or without object remapping.

Babel Buster®... The BACnet Gateway Brand Everybody Remembers.

Our Most Popular Gateways

BB3-7101 Modbus RTU and TCP to BACnet IP
• Connect Modbus RTU or TCP Devices to a BACnet IP Network
• Connect BACnet IP Devices to a Modbus RTU or TCP Network
• Subscribe to COV on Changes from Modbus or BACnet
• Up to 5,000 BACnet Objects and 5,000 Modbus Holding Registers
• BACnet Input, Value, Output objects for Analog, Binary, Multistate
• Optional mapping of Modbus Registers as Coil, Discrete, Input, Holding
• FCC, CE Mark, UL 916 Listed, BTL Certified
• Software Included, No Drivers to Buy

BB3-3101 Modbus RTU to BACnet MS/TP
• Connect Modbus RTU Devices to BACnet MS/TP Network
• Connect BACnet MS/TP Devices to a Modbus RTU Network
• Subscribe to COV on Changes from Modbus or BACnet
• Up to 1024 BACnet Objects and 1024 Modbus Registers
• BACnet Input, Value, Output objects for Analog, Binary, Multistate
• Access Modbus Registers as Coil, Discrete, Input, Holding
• MS/TP baud rates: 9600, 19200, 38400, 76800
• FCC, CE Mark, UL 916 Listed, BTL Certified
• Software Included, No Drivers to Buy