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LTRASONIC
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EVEL
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Table 8
Downlink
Configuration
Message for
Threshold
Mode
The upper and lower distance thresholds are
unsigned
values with units of one
millimeter. Note that if the configuration settings exceed the maximum ratings on the
sensor, the sensor may not report an event.
Periodic reporting and hold time are described in the sections below.
7.3.2.
Report on Change Mode
Report on Change mode is set when byte 0 of the payload is set to 0x01. The remainder
of the payload is defined in the following table.
Table 9 Downlink Configuration Message for Report on Change Mode
Byte Description
0
0x01 (Report on Change mode)
1
Periodic reporting in 1 minute or 1 hour intervals. Default is 0 (disabled)
2
Hold time in 1 second or 1 minute intervals
3
Distance increase in mm, upper byte
4
Distance increase, lower byte
5
Distance decrease in mm, upper byte
6
Distance decrease in mm, lower byte
If the distance increase or decrease are non-zero, then the sensor will send an alert any
time the distance changes by the specified amount. For example, if the distance
increase and decrease are set to 5mm, then an alert is sent every time the distance
5
Upper distance threshold in mm, upper byte. Default 1,000mm
6
Upper distance threshold in mm, lower byte
