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µs/cm Calibration
Conductivity µs/cm calibration is accomplished by writing an entire block of values (non-divisible) using a write multiple registers
command (function code 0x10). Last calibration time can subsequently be read to verify. It utilizes temperature readings of the
probe, so they are not needed to be supplied by the user.
Address
Description
0x0320
Conductivity us/cm Calibration Time (s) [3:0]
0x0321
0x0322
Conductivity us/cm Calibration Value [3:0]
0x0323
Request
Function Code
Register Address
Number Registers
Byte Count
Register Values
Salinity ppt Calibration
Salinity ppt calibration is accomplished by writing an entire block of values (non-divisible) using a write multiple registers command
(function code 0x10). Last calibration time can subsequently be read to verify.
Address
Description
0x0330
Salinity ppt Calibration Time (s) [3:0]
0x0331
0x0332
Salinity ppt Calibration Value [3:0]
0x0333
Request
Function Code
Register Address
Number Registers
Byte Count
Register Values
Modbus Configuration & Commands
1 byte
2 bytes
2 bytes
1 byte
8 bytes
1 byte
2 bytes
2 bytes
1 byte
8 bytes
0x10
0x0320
0x0004
0x08
Conductivity us/cm Calibration Time (s) [3:0]
Conductivity us/cm Calibration Value [3:0]
0x10
0x0330
0x0004
0x08
Salinity ppt Calibration Time (s) [3:0]
Salinity ppt Calibration Value [3:0]
24
R/W
Type
Default
W
U32
N/A
W
Float
N/A
R/W
Type
Default
W
U32
N/A
W
Float
N/A
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