Internal Channels for M Series and NI 6010 Devices

NI-DAQmx Device Considerations

Internal Channels for M Series and NI 6010 Devices

The following table describes all M Series and NI 6010 internal channels.

Internal Channel Name Description
_aignd_vs_aignd A differential terminal with the positive and negative terminals both connected to the ground reference for analog input.
_ao0_vs_aognd A differential terminal with the positive terminal connected to physical channel ao0 and the negative terminal connected to the ground reference for analog output.
_ao1_vs_aognd A differential terminal with the positive terminal connected to physical channel ao1 and the negative terminal connected to the ground reference for analog output.
_ao2_vs_aognd For M Series devices only—A differential terminal with the positive terminal connected to physical channel ao2 and the negative terminal connected to the ground reference for analog output.
_ao3_vs_aognd For M Series devices only—A differential terminal with the positive terminal connected to physical channel ao3 and the negative terminal connected to the ground reference for analog output.
_calref_vs_aignd A differential terminal with the positive terminal connected to the internal calibration reference voltage and the negative terminal connected to the ground reference for analog input.
_aignd_vs_aisense A differential terminal with the positive terminal connected to the ground reference for analog input and the negative terminal connected to physical channel AI SENSE.
_aignd_vs_aisense2 A differential terminal with the positive terminal connected to the ground reference for analog input and the negative terminal connected to physical channel AI SENSE2.
_calSrcHi_vs_aigndA differential terminal with the positive terminal connected to the calibration PWM and the negative terminal connected to the ground reference for analog input.
_calref_vs_calSrcHiA differential terminal with the positive terminal connected to the internal calibration reference voltage and the negative terminal connected to the calibration PWM.
_calSrcHi_vs_calSrcHiA differential terminal with the positive and negative terminals connected to the calibration PWM.
_aignd_vs_calSrcHiA differential terminal with the positive terminal connected to the ground reference for analog input and the negative terminal connected to the calibration PWM.
_calSrcMid_vs_aigndA differential terminal with the positive terminal connected to the calibration PWM and the negative terminal connected to the ground reference for analog input. _calSrcMid is the divided down version of _calSrcHi.
_calSrcLo_vs_aigndA differential terminal with the positive terminal connected to the calibration PWM and the negative terminal connected to the ground reference for analog input. _calSrcLo is the divided down version of _calSrcHi.
_ai0_vs_calSrcHiA differential terminal with the positive terminal connected to physical channel ai0 and the negative terminal connected to the calibration PWM.
_ai8_vs_calSrcHiA differential terminal with the positive terminal connected to physical channel ai8 and the negative terminal connected to the calibration PWM.
_boardTempSensor_vs_aignd A differential terminal with the positive terminal connected to the onboard temperature sensor and the negative terminal connected to the ground reference for analog input.
_PXI_SCXIbackplane_vs_aignd A terminal where a signal being conditioned by a SCXI module is measured across the PXI/SCXI backplane and not the I/O connector. Reading from this channel is valid only on PXI devices inserted in the rightmost PXI slot of a PXI/SCXI combination chassis.