STjh BACnet IP FFU gateway with RS485 terminals, dual Ethernet sockets and alarm relay block

STJH-FFU-BMS-GATEWAY-BACNET-IP

FFU BMS Gateway Modbus-to-BACnet IP

A protocol gateway exposing Modbus FFU data to BACnet IP building automation networks.

Modbus RTU field network
BACnet IP upstream protocol
Fan status, speed and alarms

Introduction de produit

This gateway translates Modbus RTU field data from FFUs into BACnet IP objects over Ethernet. It makes fan speed, operating status and alarms available to building systems standardized on BACnet. The protocol conversion distinguishes it from the transparent Modbus TCP bridge and the server-oriented OPC UA/MQTT gateway.

Key Features

BACnet object exposure

FFU points become accessible to a BACnet IP supervisor.

Cross-protocol translation

The gateway converts between fan-side Modbus and building-side BACnet.

Facility alarm visibility

Operating alarms can be included in the building interface.

Paramètres techniques

Field Protocol	Modbus RTU
BMS Protocol	BACnet IP
Upstream Connection	Ethernet
Exposed Functions	Fan status, speed and alarms
Field Network	RS485-compatible Modbus segment
Object Mapping	Configured BACnet points
Command Direction	BMS setpoints to FFU network
Installation	Building controls enclosure
Application	Hospital and commercial BMS integration
Customisation	Disponible en fonction de l'application prévue et de l'environnement d'exploitation.

Applications

Recommended for hospitals and commercial facilities using BACnet IP as the building-controls standard. Point naming, object instances and command priorities should be coordinated with the BMS.

Solutions for Your Application

A BACnet supervisor cannot interpret native Modbus fan registers.Translate the required FFU points into BACnet IP objects.

Uncoordinated command priorities can override cleanroom settings.Define writable points and BACnet priority behavior before connection.

Options disponibles

Specify fan register map, BACnet objects, Ethernet settings, enclosure and access control. Confirm which points are monitored and which may be commanded.

Planning a FFU BMS Gateway Modbus-to-BACnet IP specification?

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