EZ Gateway M-Bus to Modbus and BACnet

The Quick and Easy M-Bus to Modbus and BACnet Solution.

The EZ Gateway M-Bus to Modbus and BACnet is an easy to use, high-performance building and industrial automation protocol gateway for integrators to interface M-Bus products to Modbus and BACnet management systems in commercial buildings, campuses and industrial facilities over Modbus RTU, Modbus TCP/IP, BACnet MS/TP or BACnet/IP protocols. M-Bus products encompass a wide range of applications such as energy, gas, heating, water, VFD drives and PLCs. M-BUS to Modbus and BACnet protocol translations include:

  • M-Bus to Modbus
  • M-Bus to Modbus TCP/IP
  • M-Bus to BACnet/IP
  • M-Bus to BACnet MS/TP
This product is protected by FieldSafe.

With the EZ Gateway M-Bus to Modbus & BACnet, the integrator or contractor does not need to be a protocol expert, and can minimize configuration and commissioning time, while also reducing ongoing operating and maintenance costs.

The EZ Gateway M-Bus to Modbus & BACnet combines field-hardened M-Bus, Modbus and BACnet protocol drivers with an easy to use configuration interface that, once configured, allows M-Bus devices to be presented as virtual BACnet devices which simplifies commissioning, configuration and troubleshooting. The intuitive web-based interface allows configurations to be built in the field or in the office. Additionally, the configuration profiles can be downloaded and then uploaded to other FieldServer M-Bus applications, simplifying the commissioning and integration process on repeatable applications.


  • M-Bus Explorer discovers all M-Bus devices in the network, shows the manufacturer details as well as available points, and offers one-click profile generation
  • Profile Loader enables efficient profile editing, exporting and importing
  • Up to 64 slave devices (max device count based on model)
  • Communication between devices with different baud rates at the same time
  • Virtual nodes allow each M-Bus device connected to a single EZ Gateway to be seen as a separate device on the BACnet network
  • Use the Change of Value (CoV) setting to reduce the amount of BACnet data overhead to allow network traffic to be less congested by transmitting data only when detecting an M-Bus device status change
  • All FieldServer gateways come with Remote Access support.  Once registerd to the MSA Grid, use the Remote Access capability to attach to the FieldServer gateway to monitor, maintain and troubleshoot installed equipment
  • For connecting to remote BACnet networks
  • Diagnostics of the devices connected to the network is available via Web Interface
  • Register your EZ Gateway to the MSA Grid interface for remote access to local applications, configuration, and device management

Model Numbers   

  • FS-EZ1-MBUS-MOD-BAC: 16 slave devices
  • FS-EZ2-MBUS-MOD-BAC: 32 slave devices
  • FS-EZ3-MBUS-MOD-BAC: 64 slave devices

Power Requirements

  • 9-30V DC or 12-24V AC
  • Current draw @ 12V:
    • 1 Slave: 580 mA
    • 64 Slaves: 980 mA


  • Dimensions: 4.5 x 2.9 x 1.6 in. (11.5 x 7.4 x 4.1 cm)
  • Weight: 0.4 lbs (0.2 Kg)


  • Operating Temperature: -40 to 75C (-40 to 167F))
  • Relative Humidity: 5-90% non-condensing


  • Configuration/Diagnostic utilities
  • Table, wall, or DIN rail mount


  • Baud: 2400, 4800, 9600, 19200, 38400
  • Start Bit: 7, 8
  • Ethernet: 10/100 BaseT MDIX


Les homologations sont sujettes à modification sans préavis et peuvent différer selon la configuration, la référence de pièce et/ou le pays.
Veuillez contacter le service client ou consulter l’étiquette d’homologation sur le produit pour de plus amples informations sur l’homologation.