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NI 5412 Calibration Procedure
14. Call
niFgen_SetAttributeViBoolean
to disable the analog output (niFgen property
node:
Basic Operation»Output Enabled
) using the following parameters:
•
vi
: The session handle returned from
niFgen_InitExtCal
•
channelName
:
"0"
•
attributeID
:
NIFGEN_ATTR_OUTPUT_ENABLED
•
value
:
VI_FALSE
15. Call
niFgen_Commit
(niFgen Commit VI) to commit the attribute values to the device
using the following parameter:
•
vi
: The session handle returned from
niFgen_InitExtCal
16. Wait 500 ms for the output to settle.
17. Call
niFgen_ReadCalADC
(niFgen Read CAL ADC VI) to measure the analog output
voltage with the onboard calibration ADC using the following parameters:
•
vi
: The session handle returned from
niFgen_InitExtCal
•
numberOfReadsToAverage
:
3
•
returnCalibratedValue
:
VI_FALSE
•
calADCValue
: A ViReal64 variable. The variable passed by reference through this
parameter receives the voltage measured by the onboard ADC. This value is
cal
ADC
measurement 0
, which is used in step 31.
18. Call
niFgen_SetAttributeViBoolean
to enable the analog output (niFgen property
node:
Basic Operation»Output Enabled
) using the following parameters:
•
vi
: The session handle returned from
niFgen_InitExtCal
•
channelName
:
"0"
•
attributeID
:
NIFGEN_ATTR_OUTPUT_ENABLED
•
value
:
VI_TRUE
19. Call
niFgen_Commit
(niFgen Commit VI) to commit the attribute values to the device
using the following parameter:
•
vi
: The session handle returned from
niFgen_InitExtCal
20. Wait 500 ms for the output to settle.
21. Use the DMM to measure the NI 5412 voltage output directly into the DMM into a
high-impedance load. This measurement is
external measurement 0
, which is used
in step 31.
22. Call
niFgen_WriteBinary16AnalogStaticValue
(niFgen Write Binary 16 Analog
Static Value VI) to set the main DAC value using the following parameters:
•
vi
: The session handle returned from
niFgen_InitExtCal
•
channelName
:
"0"
•
value
:
10232
