36
Reading Parameters
To determine the starting register number for a given parameter register block, first determine its parameter
id by looking in the sensor’s parameter tables. Then calculate the starting register number of the parameter
block using the following equation.
Starting Register = (Parameter Id – 1) x 7 + 5451
For example, for the Conductivity Sensor, the parameter id for specific conductivity is 10 (bit 9 will be set in
register 6984 if it is available). The starting register number for the specific conductivity register block is thus
(10 – 1) x 7 + 5451 = 5514.
The starting register for each parameter points to a block of 7 registers that contain the following
information.
Register Offset
Size
(Registers)
Mode & Access Level
(R/W)
Data Type
Description
0
2
R
float
The measured value
from sensor
2
1
R
ushort
Data Quality Id: If this
is 0 then there are no
errors or
warnings. See: Full
System Specification
3
1
R/W
float
Units Id for the
measured value. The
default values
are listed in the table
below.
4
1
R
ushort
Parameter Id: The ID of
the parameter for this
location. See: Full
System Specification
5
2
R/W
float
Off line sentinel
value: The value that’s
returned on
error or if the parameter
isn’t available. The
default
sentinel is 0.0
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