niDCPower Properties
NI DC Power Supplies and SMUs Help (NI-DCPower)
Edition Date: January 2018
Part Number: 370736U-01
View Product Info
Edition Date: January 2018
Part Number: 370736U-01
View Product Info
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NI-DCPower (English | Japanese) |
January 2018, 372437R-01
Use the NI-DCPower properties to access advanced configuration options for DC power supplies and SMU applications.
© 2006–2018 National Instruments. All rights reserved.
| Property | Description |
|---|---|
| Active Channel |
Specifies the channel name used to access all subsequent channel-based properties in this property node. Details |
| Source:Source Mode |
Specifies whether to run a single output point or a sequence. Refer to the Single Point source mode and Sequence source mode topics in the NI DC Power Supplies and SMUs Help for more information about source modes. Details |
| Source:Output Function |
Configures the function to generate on the specified channel(s). Details |
| Source:Output Enabled |
Specifies whether the output is enabled (TRUE) or disabled (FALSE). Details |
| Source:Output Connected |
Specifies whether the output relay is connected (closed) or disconnected (open). The Output Enabled property does not change based on this property; they are independent of each other. Details |
| Source:Output Resistance |
Specifies the output resistance that the device attempts to generate for the specified channel(s). This property is available only when you set the Output Function property to DC Voltage. Refer to NI PXIe-4154 Programmable Output Resistance for more information about selecting an output resistance. Details |
| Source:Transient Response |
Specifies the transient response. Refer to the Transient Response topic in the NI DC Power Supplies and SMUs Help for more information about transient response. Details |
| Source:Custom Transient Response:Voltage:Gain Bandwidth |
The frequency at which the unloaded loop gain extrapolates to 0 dB in the absence of additional poles and zeroes. This property takes effect when the channel is in Constant Voltage mode. Details |
| Source:Custom Transient Response:Voltage:Compensation Frequency |
The frequency at which a pole-zero pair is added to the system when the channel is in Constant Voltage mode. Details |
| Source:Custom Transient Response:Voltage:Pole-Zero Ratio |
The ratio of the pole frequency to the zero frequency when the channel is in Constant Voltage mode. Details |
| Source:Custom Transient Response:Current:Gain Bandwidth |
The frequency at which the unloaded loop gain extrapolates to 0 dB in the absence of additional poles and zeroes. This property takes effect when the channel is in Constant Current mode. Details |
| Source:Custom Transient Response:Current:Compensation Frequency |
The frequency at which a pole-zero pair is added to the system when the channel is in Constant Current mode. Details |
| Source:Custom Transient Response:Current:Pole-Zero Ratio |
The ratio of the pole frequency to the zero frequency when the channel is in Constant Current mode. Details |
| Source:DC Voltage:Voltage Level |
Specifies the voltage level, in volts, that the device attempts to generate on the specified channel(s). Details |
| Source:DC Voltage:Voltage Level Range |
Specifies the voltage level range, in volts, for the specified channel(s). Details |
| Source:DC Voltage:Voltage Level Autorange |
Specifies whether NI-DCPower automatically selects the voltage level range based on the desired voltage level for the specified channel(s). Details |
| Source:DC Voltage:Current Limit |
Specifies the current limit, in amps, that the output cannot exceed when generating the desired voltage on the specified channel(s). Limit is specified as a positive value, but symmetric positive and negative limits are enforced simultaneously. Details |
| Source:DC Voltage:Current Limit High |
Specifies the maximum current, in amps, that the output can produce when generating the desired voltage on the specified channel(s). Details |
| Source:DC Voltage:Current Limit Low |
Specifies the minimum current, in amps, that the output can produce when generating the desired voltage on the specified channel(s). Details |
| Source:DC Voltage:Current Limit Range |
Specifies the current limit range, in amps, for the specified channel(s). Details |
| Source:DC Voltage:Current Limit Autorange |
Specifies whether NI-DCPower automatically selects the current limit range based on the desired current limit for the specified channel(s). Details |
| Source:DC Current:Current Level |
Specifies the current level, in amps, that the device attempts to generate on the specified channel(s). Details |
| Source:DC Current:Current Level Range |
Specifies the current level range, in amps, for the specified channel(s). Details |
| Source:DC Current:Current Level Autorange |
Specifies whether NI-DCPower automatically selects the current level range based on the desired current level for the specified channel(s). Details |
| Source:DC Current:Voltage Limit |
Specifies the voltage limit, in volts, that the output cannot exceed when generating the desired current level on the specified channels. Limit is specified as a positive value, but symmetric positive and negative limits are enforced simultaneously. Details |
| Source:DC Current:Voltage Limit High |
Specifies the maximum voltage, in volts, that the output can produce when generating the desired current on the specified channel(s). Details |
| Source:DC Current:Voltage Limit Low |
Specifies the minimum voltage, in volts, that the output can produce when generating the desired current on the specified channel(s). Details |
| Source:DC Current:Voltage Limit Range |
Specifies the voltage limit range, in volts, for the specified channel(s). Details |
| Source:DC Current:Voltage Limit Autorange |
Specifies whether NI-DCPower automatically selects the voltage limit range based on the desired voltage limit for the specified channel(s). Details |
| Source:Pulse Voltage:Pulse Voltage Level |
Specifies the pulse voltage level, in volts, that the device attempts to generate on the specified channel(s) during the on phase of a pulse. Details |
| Source:Pulse Voltage:Pulse Bias Voltage Level |
Specifies the pulse bias voltage level, in volts, that the device attempts to generate on the specified channel(s) during the off phase of a pulse. Details |
| Source:Pulse Voltage:Pulse Voltage Level Range |
Specifies the pulse voltage level range, in volts, for the specified channel(s). Details |
| Source:Pulse Voltage:Pulse Current Limit |
Specifies the pulse current limit, in amps, that the output cannot exceed when generating the desired pulse voltage on the specified channel(s) during the on phase of a pulse. Limit is specified as a positive value, but symmetric positive and negative limits are enforced simultaneously. Details |
| Source:Pulse Voltage:Pulse Current Limit High |
Specifies the maximum current, in amps, that the output can produce when generating the desired pulse voltage on the specified channel(s) during the on phase of a pulse. Details |
| Source:Pulse Voltage:Pulse Current Limit Low |
Specifies the minimum current, in amps, that the output can produce when generating the desired pulse voltage on the specified channel(s) during the on phase of a pulse. Details |
| Source:Pulse Voltage:Pulse Bias Current Limit |
Specifies the pulse bias current limit, in amps, that the output cannot exceed when generating the desired pulse bias voltage on the specified channel(s) during the off phase of a pulse. Limit is specified as a positive value, but symmetric positive and negative limits are enforced simultaneously. Details |
| Source:Pulse Voltage:Pulse Bias Current Limit High |
Specifies the maximum current, in amps, that the output can produce when generating the desired pulse voltage on the specified channel(s) during the off phase of a pulse. Details |
| Source:Pulse Voltage:Pulse Bias Current Limit Low |
Specifies the minimum current, in amps, that the output can produce when generating the desired pulse voltage on the specified channel(s) during the off phase of a pulse. Details |
| Source:Pulse Voltage:Pulse Current Limit Range |
Specifies the pulse current limit range, in amps, for the specified channel(s). Details |
| Source:Pulse Current:Pulse Current Level |
Specifies the pulse current level, in amps, that the device attempts to generate on the specified channel(s) during the on phase of a pulse. Details |
| Source:Pulse Current:Pulse Bias Current Level |
Specifies the pulse bias current level, in amps, that the device attempts to generate on the specified channel(s) during the off phase of a pulse. Details |
| Source:Pulse Current:Pulse Current Level Range |
Specifies the pulse current level range, in amps, for the specified channel(s). Details |
| Source:Pulse Current:Pulse Voltage Limit |
Specifies the pulse voltage limit, in volts, that the output cannot exceed when generating the desired pulse current on the specified channel(s) during the on phase of a pulse. Limit is specified as a positive value, but symmetric positive and negative limits are enforced simultaneously. Details |
| Source:Pulse Current:Pulse Voltage Limit High |
Specifies the maximum voltage, in volts, that the output can produce when generating the desired pulse current on the specified channel(s) during the on phase of a pulse. Details |
| Source:Pulse Current:Pulse Voltage Limit Low |
Specifies the minimum voltage, in volts, that the output can produce when generating the desired pulse current on the specified channel(s) during the on phase of a pulse. Details |
| Source:Pulse Current:Pulse Bias Voltage Limit |
Specifies the pulse voltage limit, in volts, that the output cannot exceed when generating the desired current on the specified channel(s) during the off phase of a pulse. Limit is specified as a positive value, but symmetric positive and negative limits are enforced simultaneously. Details |
| Source:Pulse Current:Pulse Bias Voltage Limit High |
Specifies the maximum voltage, in volts, that the output can produce when generating the desired pulse current on the specified channel(s) during the off phase of a pulse. Details |
| Source:Pulse Current:Pulse Bias Voltage Limit Low |
Specifies the minimum voltage, in volts, that the output can produce when generating the desired pulse current on the specified channel(s) during the off phase of a pulse. Details |
| Source:Pulse Current:Pulse Voltage Limit Range |
Specifies the pulse voltage limit range, in volts, for the specified channel(s). Details |
| Source:Advanced:Source Delay |
Determines when, in seconds, the device generates the Source Complete event, potentially starting a measurement if the Measure When property is set to Automatically After Source Complete. Details |
| Source:Advanced:Pulse Bias Delay |
Determines when, in seconds, the device generates the Pulse Complete event after generating the off level of a pulse. Details |
| Source:Advanced:Pulse On Time |
Determines the length, in seconds, of the on phase of a pulse. Details |
| Source:Advanced:Pulse Off Time |
Determines the length, in seconds, of the off phase of a pulse. Details |
| Source:Advanced:OVP Enabled |
Enables (TRUE) or disables (FALSE) overvoltage protection (OVP). Details |
| Source:Advanced:OVP Limit |
Determines the voltage limit, in volts, beyond which overvoltage protection (OVP) engages. Limit is specified as a positive value, but symmetric positive and negative limits are enforced simultaneously. For example, setting the OVP Limit to 65 will configure the OVP feature to trigger an OVP error if the output exceeds ±65 V. Details |
| Source:Advanced:Overranging Enabled |
Specifies whether NI-DCPower allows setting the voltage level, current level, voltage limit, and current limit outside the device specification limits. TRUE means that overranging is enabled. Details |
| Source:Advanced:Output Capacitance |
Specifies whether to use a low or high capacitance on the output for the specified channel(s). Details |
| Source:Advanced:Sequence Loop Count |
Specifies the number of times a sequence is run after initiation. Details |
| Source:Advanced:Sequence Loop Count Is Finite |
Specifies whether a sequence should repeat indefinitely. Details |
| Source:Advanced:Active Advanced Sequence |
Specifies the advanced sequence to configure or generate. Details |
| Source:Advanced:Active Advanced Sequence Step |
Specifies the advanced sequence step to configure. Details |
| Source:Advanced:Compliance Limit Symmetry |
Specifies whether compliance limits for current generation and voltage generation for the device are applied symmetrically about 0 V and 0 A or asymmetrically with respect to 0 V and 0 A. Details |
| Measurement:Sense |
Selects either local or remote sensing of the output voltage for the specified channel(s). Details |
| Measurement:Auto Zero |
Specifies the auto-zero method to use on the device. Details |
| Measurement:Aperture Time Units |
Specifies the units of the Aperture Time property for the channel configuration. Details |
| Measurement:Aperture Time |
Specifies the measurement aperture time for the channel configuration. Aperture time is specified in the units set by the Aperture Time Units property. Details |
| Measurement:Power Line Frequency |
Specifies the power line frequency for specified channel(s). NI-DCPower uses this value to select a timebase for setting the Aperture Time property in power line cycles (PLCs). Details |
| Measurement:Samples To Average |
Specifies the number of samples to average when you take a measurement. Details |
| Measurement:Measure Record Length |
Specifies how many measurements compose a measure record. When this property is set to a value greater than 1, the Measure When property must be set to Automatically after Source Complete or On Measure Trigger. Details |
| Measurement:Measure Record Length Is Finite |
Specifies whether to take continuous measurements. Call the niDCPower Abort VI to stop continuous measurements. When this property is set to FALSE and the Source Mode property is set to Single Point, the Measure When property must be set to Automatically after Source Complete or On Measure Trigger. When this property is set to FALSE and the Source Mode property is set to Sequence, the Measure When property must be set to On Measure Trigger. Details |
| Measurement:Measure Record Delta Time |
Queries the amount of time, in seconds, between the start of two consecutive measurements in a measure record. Only query this property after the desired measurement settings are committed. Details |
| Measurement:Fetch Backlog |
Returns the number of measurements acquired that have not been fetched yet. Details |
| Measurement:Advanced:Measure When |
Specifies when the measure unit should acquire measurements. Unless this property is configured to On Measure Trigger, the Measure Trigger Type property is ignored. Details |
| Measurement:Advanced:Reset Average Before Measurement |
Specifies whether the measurement returned from any measurement call starts with a new measurement call (TRUE) or returns a measurement that has already begun or completed (FALSE). Details |
| Measurement:Advanced:DC Noise Rejection |
Determines the relative weighting of samples in a measurement. Details |
| Measurement:Advanced:Measure Buffer Size |
Specifies the number of samples that the active channel measurement buffer can hold. Details |
| Triggers:Start Trigger:Trigger Type |
Specifies the behavior of the Start trigger. Details |
| Triggers:Start Trigger:Export Output Terminal |
Specifies the output terminal for exporting the Start trigger. Refer to the Device Routes tab in Measurement & Automation Explorer for a list of the terminals available on your device. For the PXIe-4162/4163, refer to the Signal Routing topic for the device to determine which routes are available. This information is not available on a Device Routes tab in MAX. Details |
| Triggers:Start Trigger:Digital Edge:Edge |
Specifies whether to configure the Start trigger to assert on the rising or falling edge. Details |
| Triggers:Start Trigger:Digital Edge:Input Terminal |
Specifies the input terminal for the Start trigger. This property is used only when the Start Trigger Type property is set to Digital Edge. Details |
| Triggers:Source Trigger:Trigger Type |
Specifies the behavior of the Source trigger. Details |
| Triggers:Source Trigger:Export Output Terminal |
Specifies the output terminal for exporting the Source trigger. Refer to the Device Routes tab in Measurement & Automation Explorer for a list of the terminals available on your device. For the PXIe-4162/4163, refer to the Signal Routing topic for the device to determine which routes are available. This information is not available on a Device Routes tab in MAX. Details |
| Triggers:Source Trigger:Digital Edge:Edge |
Specifies whether to configure the Source trigger to assert on the rising or falling edge. Details |
| Triggers:Source Trigger:Digital Edge:Input Terminal |
Specifies the input terminal for the Source trigger. This property is used only when the Source Trigger Type property is set to Digital Edge. Details |
| Triggers:Measure Trigger:Trigger Type |
Specifies the behavior of the Measure trigger. Details |
| Triggers:Measure Trigger:Export Output Terminal |
Specifies the output terminal for exporting the Measure trigger. Refer to the Device Routes tab in Measurement & Automation Explorer for a list of the terminals available on your device. For the PXIe-4162/4163, refer to the Signal Routing topic for the device to determine which routes are available. This information is not available on a Device Routes tab in MAX. Details |
| Triggers:Measure Trigger:Digital Edge:Edge |
Specifies whether to configure the Measure trigger to assert on the rising or falling edge. Details |
| Triggers:Measure Trigger:Digital Edge:Input Terminal |
Specifies the input terminal for the Measure trigger. This property is used only when the Measure Trigger Type property is set to Digital Edge. Details |
| Triggers:Sequence Advance Trigger:Trigger Type |
Specifies the behavior of the Sequence Advance trigger. Details |
| Triggers:Sequence Advance Trigger:Export Output Terminal |
Specifies the output terminal for exporting the Sequence Advance trigger. Refer to the Device Routes tab in Measurement & Automation Explorer for a list of the terminals available on your device. For the PXIe-4162/4163, refer to the Signal Routing topic for the device to determine which routes are available. This information is not available on a Device Routes tab in MAX. Details |
| Triggers:Sequence Advance Trigger:Digital Edge:Edge |
Specifies whether to configure the Sequence trigger to assert on the rising or falling edge. Details |
| Triggers:Sequence Advance Trigger:Digital Edge:Input Terminal |
Specifies the input terminal for the Sequence Advance trigger. This property is used only when the Sequence Advance Trigger Type property is set to Digital Edge. Details |
| Events:Source Complete Event:Output Terminal |
Specifies the output terminal for exporting the Source Complete event. Details |
| Events:Source Complete Event:Pulse:Polarity |
Specifies the behavior of the Source Complete event. Details |
| Events:Source Complete Event:Pulse:Width |
Specifies the width of the Source Complete event, in seconds. The minimum event pulse width value for the NI PXI-4132 is 150 ns, and the minimum event pulse width value for PXI Express devices is 250 ns. The maximum event pulse width value for all devices is 1.6 microseconds. Details |
| Events:Measure Complete Event:Output Terminal |
Specifies the output terminal for exporting the Measure Complete event. Details |
| Events:Measure Complete Event:Event Delay |
Specifies the amount of time to delay the generation of the Measure Complete event, in seconds. Details |
| Events:Measure Complete Event:Pulse:Polarity |
Specifies the behavior of the Measure Complete event. Details |
| Events:Measure Complete Event:Pulse:Width |
Specifies the width of the Measure Complete event, in seconds. The minimum event pulse width value for the NI PXI-4132 is 150 ns, and the minimum event pulse width value for PXI Express devices is 250 ns. The maximum event pulse width value for all devices is 1.6 microseconds. Details |
| Events:Sequence Iteration Complete Event:Output Terminal |
Specifies the output terminal for exporting the Sequence Iteration Complete event. Details |
| Events:Sequence Iteration Complete Event:Pulse:Polarity |
Specifies the behavior of the Sequence Iteration Complete event. Details |
| Events:Sequence Iteration Complete Event:Pulse:Width |
Specifies the width of the Sequence Iteration Complete event, in seconds. The minimum event pulse width value for the NI PXI-4132 is 150 ns, and the minimum event pulse width value for PXI Express devices is 250 ns. The maximum event pulse width value for all devices is 1.6 microseconds. Details |
| Events:Sequence Engine Done Event:Output Terminal |
Specifies the output terminal for exporting the Sequence Engine Done Complete event. Details |
| Events:Sequence Engine Done Event:Pulse:Polarity |
Specifies the behavior of the Sequence Engine Done event. Details |
| Events:Sequence Engine Done Event:Pulse:Width |
Specifies the width of the Sequence Engine Done event, in seconds. The minimum event pulse width value for the NI PXI-4132 is 150 ns, and the minimum event pulse width value for PXI Express devices is 250 ns. The maximum event pulse width value for all devices is 1.6 microseconds. Details |
| Triggers:Pulse Trigger:Trigger Type |
Specifies the behavior of the Pulse trigger. Details |
| Triggers:Pulse Trigger:Export Output Terminal |
Specifies the output terminal for exporting the Pulse trigger. Refer to the Device Routes tab in Measurement & Automation Explorer for a list of the terminals available on your device. Details |
| Triggers:Pulse Trigger:Digital Edge:Edge |
Specifies whether to configure the Pulse trigger to assert on the rising or falling edge. Details |
| Triggers:Pulse Trigger:Digital Edge:Input Terminal |
Specifies the input terminal for the Pulse trigger. This property is used only when the Pulse Trigger Type property is set to Digital Edge. Details |
| Events:Pulse Complete Event:Output Terminal |
Specifies the output terminal for exporting the Pulse Complete event. Details |
| Events:Pulse Complete Event:Pulse:Polarity |
Specifies the behavior of the Pulse Complete event. Details |
| Events:Pulse Complete Event:Pulse:Width |
Specifies the width of the Pulse Complete event, in seconds. The minimum event pulse width value for PXI Express devices is 250 ns. The maximum event pulse width value for all devices is 1.6 microseconds. Details |
| Events:Ready For Pulse Trigger Event:Output Terminal |
Specifies the output terminal for exporting the Ready For Pulse Trigger event. Details |
| Events:Ready For Pulse Trigger Event:Pulse:Polarity |
Specifies the behavior of the Ready For Pulse Trigger event. Details |
| Events:Ready For Pulse Trigger Event:Pulse:Width |
Specifies the width of the Ready For Pulse Trigger event, in seconds. Details |
| Advanced:Power Source |
Specifies the power source to use. NI-DCPower switches the power source used by the device to the specified value. Details |
| Advanced:Power Source In Use |
Indicates whether the device is using the internal or auxiliary power source to generate power. Details |
| Advanced:Auxiliary Power Source Available |
Indicates whether an auxiliary power source is connected to the device. Details |
| Advanced:Self-Calibration Persistence |
Specifies whether the values calculated during self-calibration should be written to hardware to be used until the next self-calibration or only used until the niDCPower Reset Device VI is called or the machine is powered down. Details |
| Advanced:Interlock Input Open |
Indicates whether the safety interlock circuit is open. Details |
| Inherent IVI Attributes:User Options:Range Check |
Specifies whether to validate property values and VI parameters. Details |
| Inherent IVI Attributes:User Options:Query Instrument Status |
Specifies whether NI-DCPower queries the device status after each operation. Details |
| Inherent IVI Attributes:User Options:Cache |
Specifies whether to cache the value of properties. Details |
| Inherent IVI Attributes:User Options:Simulate |
Specifies whether to simulate NI-DCPower I/O operations. TRUE specifies that operation is simulated. Details |
| Inherent IVI Attributes:User Options:Record Value Coercions |
Specifies whether the IVI engine records the value coercions it makes for ViInt32 and ViReal64 properties. Details |
| Inherent IVI Attributes:User Options:Interchange Check |
Specifies whether to perform interchangeability checking and log interchangeability warnings when you call NI-DCPower VIs. TRUE specifies that interchangeability checking is enabled. Details |
| Inherent IVI Attributes:Driver Identification:Description |
Contains a brief description of the specific driver. Details |
| Inherent IVI Attributes:Driver Identification:Driver Prefix |
Contains the prefix for NI-DCPower. The name of each user-callable VI in NI-DCPower begins with this prefix. Details |
| Inherent IVI Attributes:Driver Identification:Driver Vendor |
Contains the name of the vendor that supplies NI-DCPower. Details |
| Inherent IVI Attributes:Driver Identification:Revision |
Contains additional version information about NI-DCPower. Details |
| Inherent IVI Attributes:Driver Identification:Class Specification Major Version |
Contains the major version number of the class specification with which NI-DCPower is compliant. Details |
| Inherent IVI Attributes:Driver Identification:Class Specification Minor Version |
Contains the minor version number of the class specification with which NI-DCPower is compliant. Details |
| Inherent IVI Attributes:Driver Capabilities:Supported Instrument Models |
Contains a comma-separated (,) list of supported NI-DCPower device models. Details |
| Inherent IVI Attributes:Driver Capabilities:Class Group Capabilities |
Contains a comma-separated (,) list of class-extension groups that NI-DCPower implements. Details |
| Inherent IVI Attributes:Driver Capabilities:Channel Count |
Indicates the number of channels that NI-DCPower supports for the instrument that was chosen when the current session was opened. For channel-based properties, the IVI engine maintains a separate cache value for each channel. Details |
| Inherent IVI Attributes:Instrument Identification:Manufacturer |
Contains the name of the manufacturer for the device you are currently using. Details |
| Inherent IVI Attributes:Instrument Identification:Model |
Contains the model number or name of the device you are currently using. Details |
| Inherent IVI Attributes:Instrument Identification:Firmware Revision |
Contains the firmware revision information for the device you are currently using. Details |
| Inherent IVI Attributes:Advanced Session Information:Driver Setup |
Indicates the Driver Setup string that you specified when initializing the driver. Details |
| Inherent IVI Attributes:Advanced Session Information:Logical Name |
Contains the logical name you specified when opening the current IVI session. Details |
| Inherent IVI Attributes:Advanced Session Information:Resource Descriptor |
Indicates the resource descriptor NI-DCPower uses to identify the physical device. Details |
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