Max APDU Length

Max APDU Length defines the maximum size of a BACnet Application Protocol Data Unit that a device can transmit or receive.

This parameter ensures that BACnet communication remains reliable by preventing devices from sending messages larger than a recipient can process, which is especially important in environments with constrained controllers or mixed device capabilities.

MultiTech accounts for Max APDU Length limitations when integrating wireless IoT data into BACnet systems by handling message sizing and segmentation at the gateway.

By ensuring that translated LoRaWAN® sensor data conforms to supported APDU sizes, MultiTech gateways maintain compatibility with a wide range of BACnet controllers and BMS platforms. This attention to protocol details helps partners deploy scalable, interoperable solutions without unexpected communication issues.