UniData Communication Systems 6527B, Manual, Page: 16 / 34

Manual – Starflow QSD Model 6527B and 6537A
Unidata Manual - 6527B and 6537A Starflow QSD User Manual 17 01 2020.docx Page 14
RS485 Settings
Baud rates – Support Baud rates from 9600 to 115200
Data Bits – 8 data bits (7 data bits is not valid setting for Modbus RTU)
Parity Bits – Even, Odd and None
Stop Bits – 1 or 2
Default settings will be 9600,8,N,1 .
4.2.5 Modbus Registers
The below list of parameters will all be located in the holding registers.
Sensor Common Registers: Registers Numbered 0001 to nnnn have Data Addresses 0000 to nnnn-1
Register
XXXX
Size
(Reg)
Mode/Access Data
Type
Description
0001 1 Read only ushort Water Temperature * 0.1 DegC
0002 1 Read only ushort Battery Voltage * 0.01 Volts
0003 1 Read only ushort Water Depth (Ultrasonic) mm
0004 1 Read only sshort CW Water Velocity mm/s
0005 1 Read only ushort RSSI
0006 1 Read only ushort Signal Spread
0007 1 Read only ushort EC Conductivity Un-Corrected
0008 1 Read only ushort EC Hi-Resolution Un-Corrected
0009 1 Read only ushort EC Conductivity Temperature Corrected
0010 1 Read only ushort EC Hi-Resolution Temperature Corrected
0011 1 Read only sshort Accelerometer X +/- 90 deg
0012 1 Read only sshort Accelerometer Y +/- 90 deg
0013 1 Read only sshort Water Depth (Pressure) mm
0014 1 Read only ushort OWB Barometric Reference mm
0015 1 Read only sshort PW Velocity in +/- mm/s
0101 1 Read/Write ushort Auto Refresh rate in seconds
0102 1 Read/Write ushort Low Level Battery threshold *.001 Volts
0103 1 Read/Write ushort Minimum Operating Depth (MoD) mm
0104 1 Read/Write ushort Minimum RSSI
0105 1 Read/Write ushort Maximum Signal Spread
0106 1 Read/Write ushort Analogue Gain
0107 1 Read/Write ushort Depth Median Outlier Filter
0108 1 Read/Write ushort Depth Moving Average
0109 1 Read/Write ushort Velocity range (OSR)
0110 1 Read/Write sshort Pressure depth offset (mm)
0201 1 Read only ushort Unused LOGGER Start on Power-up (if Scheme loaded)
0202 1 Read only ushort Unused LOGGER ON/OFF
0203 1 Read only ushort Unused
0204 1 Read only ushort Unused
0205 1 Read/Write ushort P.Depth ON/OFF