Multi-channel BMS communication interface supporting high-speed RS485 links for SCADA Monitoring Over the Serial Protocol
GW BMS 05 A

Key Features & Benefits

1. Flexible multi-protocol device server


2. Virtual node support for multiple OEM controllers


3. True protocol translation (no encapsulation)


4. Client / multi-server interoperability


5. Read & write data support


6. CSV-based configuration


7.Powered by a BTL-Certified BACnet Chipset
PRODUCT CATEGORIES
Unmanaged Ethernet Switch Series

Key Features & Benefits

  • Flexible multi-protocol device server
  • Virtual node support for multiple OEM controllers
  • True protocol translation (no encapsulation)
  • Client / multi-server interoperability
  • Read & write data support
  • CSV-based configuration
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PRODUCT CATEGORIES
Unmanaged Ethernet Switch Series
EDS-2005-EL Overview

Introduction

The GW BMS 05A is a compact and reliable BACnet to Modbus RTU/TCP protocol converter designed to seamlessly integrate BACnet-based Building Management Systems with Modbus field devices commonly used in industrial and automation environments. It enables smooth data exchange between these two widely adopted protocol families, allowing both systems to operate together within a single, unified control architecture.

As a dedicated protocol device server, the GW BMS 05A performs true protocol conversion between BACnet IP and Modbus RTU/TCP With support for RS-485–based Modbus RTU devices and Ethernet-based Modbus TCP, it allows BACnet supervisory systems to monitor and control connected Modbus System efficiently, ensuring reliable interoperability and simplified system integration.control connected all devices efficiently, ensuring reliable interoperability and simplified system integration.

Standards
BACnet IP to Modbus TCP
Performance
Max 1200 points supported
Scalability: Upgradeable to 5000 / 10000 points at additional cost
Interface
Serial Port: 1x RS485 (2-Wire / 4-wire), 5 pin terminal
Ethernet Port: 1x 10/100 Ethernet (RJ45)
Serial port included as per standard hardware configuration for the GW BMS 05 series
Indicators
LEDs for Tx, Rx, Power
Electrical Characteristics
Power: 24V AC/DC (Range: 18 to 72V DC, ±10% for 24V AC)
Consumption: 100mA @ 24V DC
Physical Characteristics
Dimensions (L x W x H): 46 x 70 x 111 mm
Mounting: DIN Rail
Environment
Operating Temp: -40°C to 85°C
Relative Humidity: 5-90% RH (non-condensing)
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Support Documents

NAME TYPE
Datasheet
Certification
User Manual
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