EZ Gateway Modbus to BACnet

The Quick and Easy Modbus to BACnet Solution

The EZ Gateway Modbus to BACnet (FS-EZX-MOD-BAC) is an easy-to-use, high-performance building and industrial automation protocol gateway for integrators to interface Modbus devices, such as power meters, flow meters, and other Modbus-based controllers, to BACnet networks in commercial buildings, campuses, and industrial facilities. The EZ Gateway supports up to 500 data points and can connect various flavors of Modbus to BACnet, including:

  • Modbus RTU
  • Modbus TCP/IP
  • BACnet/IP
  • BACnet MS/TP

The EZ Gateway is the quick and easy solution to a system integrator's Modbus to BACnet integration needs. With the EZ Gateway, the integrator or contractor does not need to be a protocol expert to connect any Modbus device to a BACnet system using either BACnet protocol.

Fastest Commissioning Time

With our long-standing association with the Modbus Organization and total commitment to the Modbus standard, we consistently implement the latest Modbus innovations on our FieldServer protocol gateways and test them thoroughly for interoperability. With tested Modbus features like bit extracting, 32 bit float/integer support, and scaling, our EZ Gateway Modbus to BACnet can work with virtually any Modbus device out of the box. Instant interoperability means that there the devices can be commissioned quickly.

A very useful FieldServer gateway innovation is the use of "EZ Profiles." An EZ Profile is a convenient mapping file that defines a one-to-one relationship between a Modbus register or bit and a BACnet object. Through the use of EZ Profiles, integrators have the ability to create or upload predefined configuration files into the EZ Gateway for fast configuration.

Our world-class technical support team has developed EZ Profiles for many common Modbus field devices and made them available in our interactive library. Uploading our Modbus to BACnet EZ Profiles into the EZ Gateway requires minimal effort by an integrator, relieving the need to spend unnecessary time writing a new Profile configuration every time a device needs to be commissioned.

Importing a Profile

Although all of our EZ Profiles can be downloaded for no cost, we do not have Profile configurations for every field device. Through the EZ Gateway web interface, we provide you with the tools to create or modify our existing EZ Profiles. Please submit any Profiles you have created or modified and upon review, we can add them to our interactive EZ Profile library for use by the Modbus-BACnet community.

Lowest Ongoing Management and Operation Costs

DeviceProxy™, our unique device management feature, is the ability to represent each Modbus device as a corresponding virtual BACnet device on the FieldServer EZ Gateway. This grants the integrator granular visibility and control over each Modbus device from a BACnet management station. With the ability to manipulate virtual BACnet device instances, reconfiguration of the network such as adding or removing devices, becomes extremely simple.

Importing a Profile

The DeviceProxy feature also provides easy troubleshooting during device commissioning or during runtime. In the event a connected Modbus device goes offline, only the corresponding BACnet device is shown offline at the BACnet management station, rather than the entire gateway being shown offline.

Unmatched Performance

The EZ Gateway Modbus to BACnet has two RS-485 ports, enabling connection for fewer devices per port, which improves response time. With two RS-485 ports, up to 64 Modbus RTU devices can be connected to the EZ Gateway without the need of adding a repeater to the RS-485 network. Compared to single-port gateways, our dual-port EZ Gateway can reduce the cost of device connectivity or double the speed of connected devices.

The EZ Gateway can connect to 100 Modbus TCP/IP devices via Ethernet. In addition, support for Modbus TCP/IP Concurrent Polling on our EZ Gateway enables faster response time and more devices per segment in situations where the Modbus field devices also support concurrent polling.

Certifications & Approvals

The EZ Gateway Modbus to BACnet is approved across a variety of standards, including the UL 916, CE, and RoHS. The EZ Gateway also carries the BTL Mark, ensuring users that it correctly implements the BACnet features claimed. These approvals and certifications, along with our commitment to Modbus interoperability, assure our customers that we carry only the highest quality of standards-compliant products.

EZ Gateway Modbus to BACnet

  • Modbus Features and Interoperability: Connect with virtually any Modbus device out of the box
    • Modbus Data Manipulation: Efficiently translate between Modbus and BACnet devices through bit extracting
    • Modbus TCP/IP Concurrent Polling: Receive faster response time and support more devices per segment
  • Modbus to BACnet EZ Profiles: Lower commissioning time by uploading preconfigured verified Modbus-BACnet EZ Profiles
  • DeviceProxy™: Minimize management and operational costs with granular visibility and control over each Modbus device from a BACnet management station
  • Dual RS-485 Ports: Improve response time by connecting fewer devices per port or support more devices per gateway

Specifications for the EZ Gateway

Environment

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

Power Requirements

  • 9-30 VDC or 12-24 VAC
    • (RS-422 = 15-30 VDC or 12-24 VAC)
  • Current draw: @ 12V
    • FS-EZ-1010, FS-EZ-12X0: 240 mA

Physical Dimensions

  • H x W x D: 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)
  • Input voltage: 24 VDC nominal: 10-30 VDC

Other

  • Configuration/Diagnostic utilities
  • Capacity:
    • 250 points FS-QS-11XX
    • 500 points FS-QS-12XX
  • Table, wall, or DIN rail mount

Communication

  • Baud: 4800, 9600, 19200, 38400, 57600, 115200
  • Start Bit: 7, 8
  • Stop Bit: 1, 2
  • Parity: Even, Odd, None
  • Ethernet: 10/100 BaseT MDIX

Approvals

  • TUV Approved to UL 916, EN 60950-1, EN 50491-3 and CSA C22.2 standards
  • BTL Mark
  • RoHS Compliant
  • GOST-R Certified
  • CE and FCC

Protocol Drivers

The Modbus-BACnet EZ Gateway from Sierra Monitor supports various flavors of Modbus and BACnet protocols, and provides internetworking across the protocols:

Resources

Modbus to BACnet EZ Profiles

The EZ Profiles listed in our interactive library have been created by our Configuration Engineers for the EZ Gateway, and are written for common field devices. Uploading our Modbus to BACnet EZ Profiles into the EZ Gateway requires minimal effort by a integrator, relieving the need to spend unnecessary time writing a new Profile configuration every time a Profile is required to map a device.

Although all of our EZ Profiles can be downloaded for no cost, we do not have EZ Profile configurations for every field device. Through the EZ Gateway web interface, we provide you with the tools to create or modify our existing EZ Profiles. Please submit any EZ Profiles you have created or modified to support@sierramonitor.com and upon review, we can add them to our EZ Profile library for use by the Modbus-BACnet community.


How to Load an EZ Profile

To load a Modbus to BACnet EZ Profile into the EZ Gateway web interface, choose "Device Profiles" under "Sections," click on the arrow next to "Add," and select "Import."

Importing a Profile


All Modbus to BACnet EZ Profiles