IviDmm Extension Capability Groups

CVI/LabWindows IVI Class Driver

IviDmm Extension Capability Groups

The IviDmm class driver identifies functions and attributes that belong to an extension group with the following abbreviations. Instrument specific drivers are not required to implement any of the extension capability groups. If you use functions and attributes that belong to extension capability groups, every instrument specific driver that you use must implement those extensions.

Group Name Description
IviDmmACMeasurement Defines attributes that configure additional settings for AC measurements. These attributes are the minimum and maximum frequency components of the input signal. This extension group also defines functions that configure these attributes.
IviDmmAutoRangeValue

Supports DMMs with the capability to return the actual range value when auto ranging.

IviDmmAutoZero Supports DMMs with the capability to take an auto zero reading. In general, the auto-zero capability of a DMM normalizes all measurements based on a Zero Reading.
IviDmmDeviceInfo Defines a function and a set of attributes that you can query to gain additional information about the instrument's configuration
IviDmmFrequencyMeasurement Supports DMMs that take frequency measurements. It defines attributes that are required to configure additional parameters needed for frequency measurements.
IviDmmMultiPoint Supports instruments capable of acquiring measurements based on multiple triggers, and acquiring multiple measurements for each trigger
IviDmmPowerLineFrequency Supports DMMs with the capability to specify the power line frequency.
IviDmmResistanceTemperature Device Supports DMMs that take temperature measurements using a resistance temperature device (RTD) transducer type.
IviDmmSoftwareTrigger Supports DMMs that can initiate a measurement based on a software trigger signal. You can send a software trigger to cause the DMM to initiate a measurement.
IviDmmTemperatureMeasurement Supports DMMs that take temperature measurements with a thermocouple, an RTD, or a thermistor transducer type. This extension group selects the transducer type. Other capability groups further configure temperature settings based on the transducer type.
IviDmmThermistor Supports DMMs that take temperature measurements using a thermistor transducer type.
IviDmmThermocouple Supports DMMs that take temperature measurements using a thermocouple transducer type.
IviDmmTriggerSlope Supports DMMs that can specify the polarity of the external trigger signal. It defines an attribute and a function to configure this polarity.