Manual – Starflow QSD Model 6527B and 6537A
Unidata Manual - 6527B and 6537A Starflow QSD User Manual 08 05 2023.docx
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Example 2: Water Temperature, Battery Voltage, Water Depth, Velocity, RSSI, Signal
Spread
Send - 01 03 00 00 00 06 C5 C8
Receive - 01 03 0C 00 DF 05 3F 00 8D 00 55 00 10 00 18 5E 8D
00 DF = 223
Temperature = 223 x 0.1 = 22.3
˚
C
05 3F = 1343
Battery = 1343 x 0.01 = 13.43 V
00 8D = 141
Water depth (Ultrasonic) = 141 mm
00 55 = 85
CW water Velocity = 85 mm/s
00 10 = 16
RSSI =16
00 18 = 24
Signal Spread = 24
Note: Refer to the Starflow QSD Modbus supplement document for additional information
5.2.6. Additional Modbus Commands
5.2.6.1. Operation
Mode
0 = SDI-12
5 = 5 second Modbus scan update or as per how often the Modbus registers are required to
update (5 is the minimum value)
Example: Set Modbus 5 second update (default):
Send - 01 06 00 64 00 05 08 16
Receive - 01 06 00 64 00 05 08 16
