Device Instance Number

Device Instance Number is a unique numerical identifier assigned to each BACnet device on a network, enabling accurate addressing, discovery, and communication between devices and building management systems.

This identifier is essential for BACnet services such as Who-Is / I-Am, ensuring that each device can be reliably discovered and distinguished within a multi-device, multi-vendor environment. MultiTech leverages device instance numbers when presenting wireless IoT endpoints as virtual BACnet devices through its gateways.

By assigning and managing unique BACnet device instances for connected LoRaWAN® sensors or sensor groups, MultiTech enables seamless discovery and integration into existing BMS platforms. This approach simplifies network commissioning, supports scalable deployments, and allows integrators to expand sensor coverage while maintaining clear, standards-compliant device identification across the BACnet network.