nidaqmx.h

NI DAQ card 6221(37pins)的windows驱动程序,实现对数据采集卡的io控制,在工程领域很有用.

#define DAQmx_AI_Accel_dBRef                                             0x29B2 // Specifies the decibel reference level in the units of the channel. When you read samples as a waveform, the decibel reference level is included in the waveform attributes.
#define DAQmx_AI_Accel_Sensitivity                                       0x0692 // Specifies the sensitivity of the accelerometer. This value is in the units you specify with Sensitivity Units. Refer to the sensor documentation to determine this value.
#define DAQmx_AI_Accel_SensitivityUnits                                  0x219C // Specifies the units of Sensitivity.
#define DAQmx_AI_Is_TEDS                                                 0x2983 // Indicates if the virtual channel was initialized using a TEDS bitstream from the corresponding physical channel.
#define DAQmx_AI_TEDS_Units                                              0x21E0 // Indicates the units defined by TEDS information associated with the channel.
#define DAQmx_AI_Coupling                                                0x0064 // Specifies the coupling for the channel.
#define DAQmx_AI_Impedance                                               0x0062 // Specifies the input impedance of the channel.
#define DAQmx_AI_TermCfg                                                 0x1097 // Specifies the terminal configuration for the channel.
#define DAQmx_AI_InputSrc                                                0x2198 // Specifies the source of the channel. You can use the signal from the I/O connector or one of several calibration signals. Certain devices have a single calibration signal bus. For these devices, you must specify the same calibration signal for all channels you connect to a calibration signal.
#define DAQmx_AI_ResistanceCfg                                           0x1881 // Specifies the resistance configuration for the channel. NI-DAQmx uses this value for any resistance-based measurements, including temperature measurement using a thermistor or RTD.
#define DAQmx_AI_LeadWireResistance                                      0x17EE // Specifies in ohms the resistance of the wires that lead to the sensor.
#define DAQmx_AI_Bridge_Cfg                                              0x0087 // Specifies the type of Wheatstone bridge that the sensor is.
#define DAQmx_AI_Bridge_NomResistance                                    0x17EC // Specifies in ohms the resistance across each arm of the bridge in an unloaded position.
#define DAQmx_AI_Bridge_InitialVoltage                                   0x17ED // Specifies in volts the output voltage of the bridge in the unloaded condition. NI-DAQmx subtracts this value from any measurements before applying scaling equations.
#define DAQmx_AI_Bridge_ShuntCal_Enable                                  0x0094 // Specifies whether to enable a shunt calibration switch. Use Shunt Cal Select to select the switch(es) to enable.
#define DAQmx_AI_Bridge_ShuntCal_Select                                  0x21D5 // Specifies which shunt calibration switch(es) to enable.  Use Shunt Cal Enable to enable the switch(es) you specify with this property.
#define DAQmx_AI_Bridge_ShuntCal_GainAdjust                              0x193F // Specifies the result of a shunt calibration. NI-DAQmx multiplies data read from the channel by the value of this property. This value should be close to 1.0.
#define DAQmx_AI_Bridge_Balance_CoarsePot                                0x17F1 // Specifies by how much to compensate for offset in the signal. This value can be between 0 and 127.
#define DAQmx_AI_Bridge_Balance_FinePot                                  0x18F4 // Specifies by how much to compensate for offset in the signal. This value can be between 0 and 4095.
#define DAQmx_AI_CurrentShunt_Loc                                        0x17F2 // Specifies the shunt resistor location for current measurements.
#define DAQmx_AI_CurrentShunt_Resistance                                 0x17F3 // Specifies in ohms the external shunt resistance for current measurements.
#define DAQmx_AI_Excit_Src                                               0x17F4 // Specifies the source of excitation.
#define DAQmx_AI_Excit_Val                                               0x17F5 // Specifies the amount of excitation that the sensor requires. If Voltage or Current is  DAQmx_Val_Voltage, this value is in volts. If Voltage or Current is  DAQmx_Val_Current, this value is in amperes.
#define DAQmx_AI_Excit_UseForScaling                                     0x17FC // Specifies if NI-DAQmx divides the measurement by the excitation. You should typically set this property to TRUE for ratiometric transducers. If you set this property to TRUE, set Maximum Value and Minimum Value to reflect the scaling.
#define DAQmx_AI_Excit_UseMultiplexed                                    0x2180 // Specifies if the SCXI-1122 multiplexes the excitation to the upper half of the channels as it advances through the scan list.
#define DAQmx_AI_Excit_ActualVal                                         0x1883 // Specifies the actual amount of excitation supplied by an internal excitation source.  If you read an internal excitation source more precisely with an external device, set this property to the value you read.  NI-DAQmx ignores this value for external excitation.
#define DAQmx_AI_Excit_DCorAC                                            0x17FB // Specifies if the excitation supply is DC or AC.
#define DAQmx_AI_Excit_VoltageOrCurrent                                  0x17F6 // Specifies if the channel uses current or voltage excitation.
#define DAQmx_AI_ACExcit_Freq                                            0x0101 // Specifies the AC excitation frequency in Hertz.
#define DAQmx_AI_ACExcit_SyncEnable                                      0x0102 // Specifies whether to synchronize the AC excitation source of the channel to that of another channel. Synchronize the excitation sources of multiple channels to use multichannel sensors. Set this property to FALSE for the master channel and to TRUE for the slave channels.
#define DAQmx_AI_ACExcit_WireMode                                        0x18CD // Specifies the number of leads on the LVDT or RVDT. Some sensors require you to tie leads together to create a four- or five- wire sensor. Refer to the sensor documentation for more information.
#define DAQmx_AI_Atten                                                   0x1801 // Specifies the amount of attenuation to use.
#define DAQmx_AI_Lowpass_Enable                                          0x1802 // Specifies whether to enable the lowpass filter of the channel.
#define DAQmx_AI_Lowpass_CutoffFreq                                      0x1803 // Specifies the frequency in Hertz that corresponds to the -3dB cutoff of the filter.
#define DAQmx_AI_Lowpass_SwitchCap_ClkSrc                                0x1884 // Specifies the source of the filter clock. If you need a higher resolution for the filter, you can supply an external clock to increase the resolution. Refer to the SCXI-1141/1142/1143 User Manual for more information.
#define DAQmx_AI_Lowpass_SwitchCap_ExtClkFreq                            0x1885 // Specifies the frequency of the external clock when you set Clock Source to DAQmx_Val_External.  NI-DAQmx uses this frequency to set the pre- and post- filters on the SCXI-1141, SCXI-1142, and SCXI-1143. On those devices, NI-DAQmx determines the filter cutoff by using the equation f/(100*n), where f is the external frequency, and n is the external clock divisor. Refer to the SCXI-1141/1142/1143 User Manual for more...
#define DAQmx_AI_Lowpass_SwitchCap_ExtClkDiv                             0x1886 // Specifies the divisor for the external clock when you set Clock Source to DAQmx_Val_External. On the SCXI-1141, SCXI-1142, and SCXI-1143, NI-DAQmx determines the filter cutoff by using the equation f/(100*n), where f is the external frequency, and n is the external clock divisor. Refer to the SCXI-1141/1142/1143 User Manual for more information.
#define DAQmx_AI_Lowpass_SwitchCap_OutClkDiv                             0x1887 // Specifies the divisor for the output clock.  NI-DAQmx uses the cutoff frequency to determine the output clock frequency. Refer to the SCXI-1141/1142/1143 User Manual for more information.
#define DAQmx_AI_ResolutionUnits                                         0x1764 // Indicates the units of Resolution Value.
#define DAQmx_AI_Resolution                                              0x1765 // Indicates the resolution of the analog-to-digital converter of the channel. This value is in the units you specify with Resolution Units.
#define DAQmx_AI_RawSampSize                                             0x22DA // Indicates in bits the size of a raw sample from the device.
#define DAQmx_AI_RawSampJustification                                    0x0050 // Indicates the justification of a raw sample from the device.
#define DAQmx_AI_ADCTimingMode                                           0x29F9 // Specifies the ADC timing mode, controlling the tradeoff between speed and effective resolution. Some ADC timing modes provide increased powerline noise rejection. On devices that have an AI Convert clock, this setting affects both the maximum and default values for Rate. You must use the same ADC timing mode for all channels on a device, but you can use different ADC timing modes for different device in the same t...
#define DAQmx_AI_Dither_Enable                                           0x0068 // Specifies whether to enable dithering.  Dithering adds Gaussian noise to the input signal. You can use dithering to achieve higher resolution measurements by over sampling the input signal and averaging the results.
#define DAQmx_AI_ChanCal_HasValidCalInfo                                 0x2297 // Indicates if the channel has calibration information.
#define DAQmx_AI_ChanCal_EnableCal                                       0x2298 // Specifies whether to enable the channel calibration associated with the channel.
#define DAQmx_AI_ChanCal_ApplyCalIfExp                                   0x2299 // Specifies whether to apply the channel calibration to the channel after the expiration date has passed.
#define DAQmx_AI_ChanCal_ScaleType                                       0x229C // Specifies the method or equation form that the calibration scale uses.
#define DAQmx_AI_ChanCal_Table_PreScaledVals                             0x229D // Specifies the reference values collected when calibrating the channel.
#define DAQmx_AI_ChanCal_Table_ScaledVals                                0x229E // Specifies the acquired values collected when calibrating the channel.
#define DAQmx_AI_ChanCal_Poly_ForwardCoeff                               0x229F // Specifies the forward polynomial values used for calibrating the channel.
#define DAQmx_AI_ChanCal_Poly_ReverseCoeff                               0x22A0 // Specifies the reverse polynomial values used for calibrating the channel.
#define DAQmx_AI_ChanCal_OperatorName                                    0x22A3 // Specifies the name of the operator who performed the channel calibration.
#define DAQmx_AI_ChanCal_Desc                                            0x22A4 // Specifies the description entered for the calibration of the channel.
#define DAQmx_AI_ChanCal_Verif_RefVals                                   0x22A1 // Specifies the reference values collected when verifying the calibration. NI-DAQmx stores these values as a record of calibration accuracy and does not use them in the scaling process.
#define DAQmx_AI_ChanCal_Verif_AcqVals                                   0x22A2 // Specifies the acquired values collected when verifying the calibration. NI-DAQmx stores these values as a record of calibration accuracy and does not use them in the scaling process.
#define DAQmx_AI_Rng_High                                                0x1815 // Specifies the upper limit of the input range of the device. This value is in the native units of the device. On E Series devices, for example, the native units is volts.
#define DAQmx_AI_Rng_Low                                                 0x1816 // Specifies the lower limit of the input range of the device. This value is in the native units of the device. On E Series devices, for example, the native units is volts.
#define DAQmx_AI_Gain                                                    0x1818 // Specifies a gain factor to apply to the channel.
#define DAQmx_AI_SampAndHold_Enable                                      0x181A // Specifies whether to enable the sample and hold circuitry of the device. When you disable sample and hold circuitry, a small voltage offset might be introduced into the signal.  You can eliminate this offset by using Auto Zero Mode to perform an auto zero on the channel.
#define DAQmx_AI_AutoZeroMode                                            0x1760 // Specifies how often to measure ground. NI-DAQmx subtracts the measured ground voltage from every sample.
#define DAQmx_AI_DataXferMech                                            0x1821 // Specifies the data transfer mode for the device.
#define DAQmx_AI_DataXferReqCond                                         0x188B // Specifies under what condition to transfer data from the onboard memory of the device to the buffer.
#define DAQmx_AI_DataXferCustomThreshold                                 0x230C // Specifies the number of samples that must be in the FIFO to transfer data from the device if Data Transfer Request Condition is DAQmx_Val_OnbrdMemCustomThreshold.
#define DAQmx_AI_MemMapEnable                                            0x188C // Specifies for NI-DAQmx to map hardware registers to the memory space of the customer process, if possible. Mapping to the memory space of the customer process increases performance. However, memory mapping can adversely affect the operation of the device and possibly result in a system crash if software in the process unintentionally accesses the mapped registers.
#define DAQmx_AI_RawDataCompressionType                                  0x22D8 // Specifies the type of compression to apply to raw samples returned from the device.
#define DAQmx_AI_LossyLSBRemoval_CompressedSampSize                      0x22D9 // Specifies the number of bits to return in a raw sample when Raw Data Compression Type is set to DAQmx_Val_LossyLSBRemoval.
#define DAQmx_AI_DevScalingCoeff                                         0x1930 // Indicates the coefficients of a polynomial equation that NI-DAQmx uses to scale values from the native format of the device to volts. Each element of the array corresponds to a term of the equation. For example, if index two of the array is 4, the third term of the equation is 4x^2. Scaling coefficients do not account for any custom scales or sensors contained by the channel.
#define DAQmx_AI_EnhancedAliasRejectionEnable                            0x2294 // Specifies whether to enable enhanced alias rejection. By default, enhanced alias rejection is enabled on supported devices. Leave this property set to the default value for most applications.
#define DAQmx_AO_Max                                                     0x1186 // Specifies the maximum value you expect to generate. The value is in the units you specify with a units property. If you try to write a value larger than the maximum value, NI-DAQmx generates an error. NI-DAQmx might coerce this value to a smaller value if other task settings restrict the device from generating the desired maximum.
#define DAQmx_AO_Min                                                     0x1187 // Specifies the minimum value you expect to generate. The value is in the units you specify with a units property. If you try to write a value smaller than the minimum value, NI-DAQmx generates an error. NI-DAQmx might coerce this value to a larger value if other task settings restrict the device from generating the desired minimum.
#define DAQmx_AO_CustomScaleName                                         0x1188 // Specifies the name of a custom scale for the channel.
#define DAQmx_AO_OutputType                                              0x1108 // Indicates whether the channel generates voltage or current.
#define DAQmx_AO_Voltage_Units                                           0x1184 // Specifies in what units to generate voltage on the channel. Write data to the channel in the units you select.
#define DAQmx_AO_Current_Units                                           0x1109 // Specifies in what units to generate current on the channel. Write data to the channel in the units you select.
#define DAQmx_AO_OutputImpedance                                         0x1490 // Specifies in ohms the impedance of the analog output stage of the device.
#define DAQmx_AO_LoadImpedance                                           0x0121 // Specifies in ohms the load impedance connected to the analog output channel.
#define DAQmx_AO_IdleOutputBehavior                                      0x2240 // Specifies the state of the channel when no generation is in progress.
#define DAQmx_AO_TermCfg                                                 0x188E // Specifies the terminal configuration of the channel.
#define DAQmx_AO_ResolutionUnits                                         0x182B // Specifies the units of Resolution Value.
#define DAQmx_AO_Resolution                                              0x182C // Indicates the resolution of the digital-to-analog converter of the channel. This value is in the units you specify with Resolution Units.
#define DAQmx_AO_DAC_Rng_High                                            0x182E // Specifies the upper limit of the output range of the device. This value is in the native units of the device. On E Series devices, for example, the native units is volts.