FTS SDI-RADAR-300WL, Руководство по эксплуатации

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700-SDI-RADAR-300WL-Man Rev 2 11 Apr Mar 2022 27 /48
Part# 21371
Table 4-6: Writing Data to the Sensor (continued)
Function Data start Addr Data Length Data Range Detail
0X06 0000A 2 bytes 0-8
Change PGA sensitivity
0X000C
2 bytes 0-3840
Change SNR threshold (dBm *
256)
0x0028 2 bytes 0-200
Change number of frames for
level window filtering
0x0029 2 bytes
0 → no filter
1
→
IIR filter
2 → window filter
Change level filter type
0x002A 2 bytes 0-1000
Change level IR filter constant
IR_const = value / 1000
0x002B 2 bytes 0 - level range
Change level dead zone
minimum in defined units
0x002C 2 bytes
0 - level range Change level dead zone
maximum in defined units
0x002D 2 bytes
0 → mm
1 → cm
2 → m
3 → in
4 → ft
Change level unit type
0x002E 2 bytes
0
→
m
3
/s
1 → liters
2
→
ft
3
/s
Change discharge unit type
4.2.5 SDI-12PROTOCOL
The 300WL is capable of reading and writing with the standard set of SDI-12
4
commands. The
following basic SDI-12 commands are implemented in the radar sensor. Note the “a” in each
command should be replaced with the sensor address number and every command must terminate
with an exclamation mark (!).
Name Command Response and Details
Address Query ?! a
Device responds with its SDI-12 address. Default address is 0 (zero )
Acknowledge
Active a! a
Sensor at input address “a” is active
Address
Change aAb! b
Device at address ”a” has changed address to “b”
4
For a detailed explanation of SDI-12 protocols and commands refer to SDI-12 Specification, Version 1.3 at
http://www.sdi-12.org