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15
7.3.4.
Periodic Reports
The ultrasonic level sensor can also send periodic updates, and this is defined in byte 1
of both modes. A setting of 0 will disable periodic reporting. The period is defined in 1
hour increments when the most significant bit is 0, and it is defined in 1 minute
increments when the most significant bit is 1 as shown in the following table.
Table 11 Period Bye (byte 1) from Downlink Configuration Message
Bit 7
Bits 6:0
0
Period defined in hours (1-127 hours)
1
Period defined in minutes (1-127 minutes)
For example, to receive a report every 4 hours, byte 1 would be set to 0x04. To receive a
periodic report every 15 minutes, byte 1 would be set to 0x8f.
Periodic reporting is not recommended as it will increase data service
fees and significantly reduce battery life. Wherever possible, use
thresholds or report-on-change only.
