Downlink Ack (0Xff); Link Quality Message (0Xfb); Downlink Messages - Multitech RBS3010NA0EBN0 User Manual

Downlink ACK (0xFF)

The cloud app uses this downlink ACK message to verify the that sensor received the downlink message received
and it was considered valid.
The sensor replies to the downlink data with a 0xFF message (downlink ACK) with the payload shown in the
following table.
Command Payload
0x00 Not used
0x01 Message was invalid or undefined
0x02 Message was valid

Link Quality Message (0xFB)

The link quality message provides a signal strength and a signal to noise measurement at the device itself. The link
quality message payload is shown in the following table.
Bytes Description
0 Current Sub-Band, sub-band currently joined and used for communication to the gateway and
network server. Value ranges from 1-8 for US915. For other regions, value depends on available
channels.
1 RSSI of last DOWNLINK received, signed integer format values in bytes 1 and 2 in two's complement
format.
2 SNR of last DOWNLINK received, signed integer format values in bytes 1 and 2 in two's complement
format.

Downlink Messages

Downlink messages are from the cloud to the sensor and are used to configure the sensor. The sensor initiates
receiving downlink messages upon transmitting, since the sensor is typically sleeping with the radio turned off.
All downlink messages must contain 8 bytes, padded with zeroes.
A downlink will be received after any uplink within the receive window.
The following command messages can be sent back to the sensor as downlink.
Command Payload
0x00 Not used
0x01 4 bytes
-- 0-7 bytes
0xED 1 byte
0xEE 1 byte
0xEF 4 bytes
0xFC 3 bytes
®
Radio Bridge LoRaWAN
Description
Not used
General configuration
Sensor configuration, refer to the Sensor Specific Messages chapter
Device Info Request (Firmware version 3.0 or newer)
Link quality configuration (Firmware version 3.0 or newer)
ADR Advanced configuration (Firmware version 3.0 or newer)
Advanced configuration
Wireless Sensor Air Temperature Humidity Sensor User Guide
COMMON MESSAGES
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