Appendix a modbus register information – Hach-Lange 3798-S sc User Manual
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Appendix A
ModBUS Register Information
Table A-3 Sensor Modbus Registers
Tag Name
Register #
Data Type
Lengt
h
R/W
Description
Measurement mS/cm
40001
Float
2
R
Conductivity in mS/cm
Measurement Ohm.cm
40003
Float
2
R
Resistivity Ohm.cm
Measurement temperature
40005
Float
2
R
Temperature
Measurement uScm
40007
Float
2
R
Conductivity in uS/cm
Measurement S/m
40009
Float
2
R
Conductivity in S/m
Measurement mS/m
40011
Float
2
R
Conductivity in mS/m
Measurement KOhm.cm
40013
Float
2
R
Resistivity KOhm.cm
Measurement Ohm.m
40015
Float
2
R
Resistivity Ohm.m
Measurement Ohm.m (2)
40017
Float
2
R
Resistivity Ohm.m2
AutoRange S/cm
40019
Integer
1
R
Auto Ranging redirection
AutoRange S/m
40020
Integer
1
R
Auto Ranging redirection of Sm
AutoRange Ohm.cm
40021
Integer
1
R
Auto Ranging redirection of Ohm.cm
AutoRange Ohm.m
40022
Integer
1
R
Auto Ranging of Ohm.m
measurement raw temperature
40023
Float
2
R
Raw Temperature
Conductivity unit
40025
Integer
1
R
Conductivity unit
Temperature unit
40026
Bit
1
R/W
Temperature unit
Output Mode
40027
Integer
1
R/W
OutputMode
Sensorname[0]
40028
Integer
1
R/W
sensorname[0]
Sensorname[1]
40029
Integer
1
R/W
sensorname[1]
Sensorname[2]
40030
Integer
1
R/W
sensorname[2]
Sensorname[3]
40031
Integer
1
R/W
sensorname[3]
Sensorname[4]
40032
Integer
1
R/W
sensorname[4]
Sensorname[5]
40033
Integer
1
R/W
sensorname[5]
Software Version (float)
40034
Float
2
R/W
Software version
Driver Version (float)
40036
Float
2
R/W
Driver version
Mains Frequency 50Hz
40038
Bit
1
R/W
Main Frequency
Function code
40039
Integer
1
R/W
Function Code
Next state
40040
Integer
1
R/W
Next Step
Password
40041
Password
1
R/W
Password
Serial number[1]
40042
Integer
1
R/W
Serial number[0]
Serial number[2]
40043
Integer
1
R/W
Serial number[1]
Serial number[3]
40044
Integer
1
R/W
Serial number[2]
Conductivity parameter
40045
Bit
1
R/W
&CMD_kunit
Temperature unit
40046
Bit
1
R/W
&CMD_tunit
Offset correction
40047
Float
2
R/W
Resistivity Offset
Electrical Calibration Resistance
40049
Float
2
R/W
Resistivity Adjust vaue
Electrical Slope
40051
Float
2
R/W
Electrical slope
Process Slope
40053
Float
2
R/W
Process slope
Main Calibration Adjust Value
40055
Float
2
R/W
Cal Conductivity Adjust Value
Second. Calibration Adjust Value
40057
Float
2
R/W
Cal Temperature Adjust Value
Temporary Meas.[0]
40059
Float
2
R/W
Temporary Measurement[0]
Temporary Meas.[1]
40061
Float
2
R/W
Temporary Measurement[1]