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© National Instruments Corporation 37 NI PXI-5422 Calibration Procedure
8. Call niFgen_SetAttributeViReal64 to set the post-amplifier
attenuation (niFgen property node: Calibration»Post-Amplifier
Attenuation) using the following parameters:
• vi: The session handle returned from
niFgen_InitExtCal
• channelName: "0"
• attributeID: NIFGEN_ATTR_POST_AMPLIFIER_ATTENUATION
• value: 0
9. Call niFgen_SetAttributeViReal64 to set the output impedance
(niFgen property node: Basic Operation»Output Impedance) using
the following parameters:
• vi: The session handle returned from
niFgen_InitExtCal
• channelName: "0"
• attributeID: NIFGEN_ATTR_OUTPUT_IMPEDANCE
• value: 50
10. 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
11. 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
Adjusting the Main Path Pre-Amplifier Offset
1. Call niFgen_SetAttributeViInt32 to set the analog path value
(niFgen property node: Output Attributes»Analog Path) using
the following parameters:
• vi: The session handle returned from
niFgen_InitExtCal
• channelName: "0"
• attributeID: NIFGEN_ATTR_ANALOG_PATH
• value: NIFGEN_VAL_FIXED_LOW_GAIN_ANALOG_PATH