700-SDI-RADAR-300WL-Man Rev 2 11 Apr Mar 2022
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Part# 21371
Table 4-3: Slave (sensor) Response Format
Name
Address Function
Byte
count
Data
CRC16
Length
1 byte
1 byte
1 byte
2 bytes (H.L.)
2 bytes (L.H.)
Example
0X01
0X03
0X02
0X00
0X01
0X79
0X84
Table 4-4: Response Example
Name
Content
Detail
Address
0X01
Slave address (Sensor id)
Function
0X03
Read slave info
Data length
0X02
Data length is 2 bytes
Data
0X00
Data high byte
0X01
Data low byte, means ID is 1
CRC16
0X84
CRC Low
0X0A
CRC High
Table 4-5 defines the data returned by the unit when the master requests register read. Table 4-6
defines how to write the device configuration. Rows highlighted in blue denote the important values
measured by the sensor. Rows highlighted in red denote operating parameters that could be
changed in the field.
Table 4-5: Retrieving Data from the Sensor
Function Data start
Addr
Data Length Data Range
Detail
0X03
0X0000
2 bytes
1
̃
255
Read sensor id
0X0001
2 bytes
0
9600
1
38400
2
57600
3
115200
4
19200
Read baud rate
0X0002
2 bytes
0
mm/s
1
m/s
2
other
Read set units type
0X0003
2 bytes
0-15000 (mm/s) Read instantaneous speed
0X0004
2 bytes
0-15000 (mm/s) Read averaged speed
0X0005
2 bytes
0-360
Read tilt angle
0X0006
2 bytes
0
incoming
1
outgoing
Read flow direction
0X0007
2 bytes
1-512
Read averaging length
