Ocean Optics NeoFox Engineering Note User Manual
Page 23
NeoFox Communication Interfaces
013-20000-010-04-201211 23
Multi Point SP T1
Float
n/a
296
n/a
n/a
n/a
This is a Single Point calibration parameter. It is a copy of its counterpart from the multi-point calibration parameter
that is copied during a single point reset. It cannot be read or set through DLL function calls. It also cannot be set
through the serial protocol, but it can be read. See the
engineering note and the
for more information about this parameter.
Multi Point SP T2
Float
n/a
300
n/a
n/a
n/a
This is a Single Point calibration parameter. Unlike the other Single Point parameters, the value of this parameter is
different than the value of its Multi Point counterpart. This value (the T2 parameter) is updated during a single point
reset, and this is the only difference between the Multi Point calibration and the Single Point calibration parameters.
Unfortunately, the value of this parameter cannot be read back through the DLL at this time. However, it can be read
back through the NeoFox Viewer, in the calibration notes field. It can also be read back, but not set through the serial
protocol.
Set Point 0V
Unsigned Short
0
≤ X ≤ 65535
176
40
n/a
DeviceSetParameter
Not supported
This parameter is the 16 bit D to A value that corresponds to a 0V output. Developers can adjust this value to increase
the accuracy of their 0-5V output. By default, the value is 0x0000.
Set Point 5V
Unsigned Short
0
≤ X ≤ 65535
177
42
n/a
DeviceSetParameter
Not Supported
This parameter is the 16 bit D to A value that corresponds to a 5V output. Developers can adjust this value to increase
the accuracy of their 0-5V output. By default, the value is 0xFFFF. Customers can also use this parameter to lower the
maximum voltage output. For instance, a maximum output voltage of 3.3V would be approximately 0xA8F5.
Set Point 4mA
Unsigned Short
0
≤ X ≤ 65535
178
44
n/a
DeviceSetParameter
Not Supported
This parameter is the 16 bit D to A value that corresponds to a 4mA output. Users can trim this value to increase the
accuracy of their 4-20 mA outputs. By default, the value is 0x32CA.
Set Point 20mA
Unsigned Short
0
≤ X ≤ 65535
179
46
n/a
Not supported
This parameter is the 16 bit D to A value for a 20mA output. Users can trim this value to increase the accuracy of their
4-20 mA outputs. By default, the value is 0xFDF2.
Analog Value 1
Float
n/a
154
620
n/a
DeviceSetParameterFloat
Not Supported
This parameter can be used to drive the analog outputs to a user-specified voltage or current. Just as with the other
potential sources for the analog output, it is treated as a dimensionless value that is compared against the upper and
lower bound parameters.
A typical use would be as follows. A user wants to set the 4-20mA output to a static value of 16mA. In order to do
this, the process would be to set the 4-20mA data source to 6 (Analog Value 1), then to set the 4-20mA Lower Bound
parameter to 4, then to set the 4-20mA Upper Bound parameter to 20, and finally to set the Analog Value 1 to 16. This
would properly set the analog output to 16mA.