BL207 series distributed I/O is a data acquisition and control system, based on a powerful 32-bit microprocessor design, using the Linux operating system, support  BACnet/IP, MQTT, OPC UA protocols.

BL207 BACnet I/O system is used for data acquisition and controlling smart devices in buildings to manage energy use, HVAC, lighting, and detection. The BACnet I/O sytem is designed for building automation systems.

The BL207 distributed I/O system consists of 3 parts: Coupler, I/O modules and terminal modules.

The communication between the I/O and the field devices takes place via the Ethernet port of the fieldbus coupler, and the communication between the fieldbus coupler and the I/O modules takes place via the local bus. The two Ethernet ports are internally integrated with a switch function, which can establish a linear topology without the need for additional switches or hubs.

The system needs to use the power module to provide 24VDC system voltage and 24VDC field voltage. Since two independent power supplies are used, the field voltage input interface and system voltage input interface of BL207 coupler are electrically isolated from each other.

When assembling fieldbus node modules, each I/O module can be arranged in any combination, and it is not required to be grouped by module type.

A terminal module must be plugged into the end of a fieldbus node to ensure correct data transmission.

BL207 BACnet I/O system is used for data acquisition and controlling smart devices in buildings to manage energy use, HVAC, lighting, and detection. The BACnet I/O sytem is designed for building automation systems.