EnglishCurrent
德语
阿拉伯语
法语
印尼语
日语
韩语
马来语
葡萄牙语
俄语
西班牙语
泰语
土耳其语
越南语
Protocol continuity
Both sides use Modbus, reducing semantic translation between fan data and the supervisor.
STJH-FFU-BMS-GATEWAY-MODBUS-TCP
FFU BMS Gateway Modbus RTU-to-TCP
A transparent RS485-to-Ethernet bridge for connecting Modbus RTU FFUs to a Modbus TCP supervisor.
- Modbus RTU field protocol
- Modbus TCP BMS protocol
- RS485-to-Ethernet bridge
Product Introduction
This gateway connects a field network of Modbus RTU fan filter units to a Modbus TCP building supervisor. It translates the physical path from RS485 to Ethernet while preserving the Modbus data model. The product is selected when the FFU layer already uses RTU and the facility BMS expects TCP rather than BACnet or an IoT protocol.
Key Features
Physical-layer conversion
RS485 fan wiring is exposed through an Ethernet connection.
FFU-focused integration
The gateway links speed, status and alarm points to the facility network.
Technical Parameters
| Field Protocol | Modbus RTU |
|---|---|
| BMS Protocol | Modbus TCP |
| Field Physical Layer | RS485 |
| Upstream Connection | Ethernet |
| Application | FFU network integration |
| Data Direction | Bidirectional commands and status |
| Address Mapping | Configured to fan network addresses |
| Installation | Control enclosure or network panel |
| Supervisory System | Modbus TCP client |
| Customization | Available based on the intended application and operating environment. |
Applications
Suitable for facilities whose BMS uses Modbus TCP while ceiling fans communicate over RTU. Registers, unit addresses and network security should be documented before integration.
Solutions for Your Application
Available Options
Specify RS485 segment count, Ethernet settings, address map, enclosure and power supply. Confirm the BMS acts as a compatible Modbus TCP client.
Planning a FFU BMS Gateway Modbus RTU-to-TCP specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
