• NIDCPOWER_ATTRIBUTE_RANGE_CHECK
• NIDCPOWER_ATTRIBUTE_QUERY_INSTRUMENT_STATUS
• NIDCPOWER_ATTRIBUTE_CACHE
• NIDCPOWER_ATTRIBUTE_SIMULATE
• NIDCPOWER_ATTRIBUTE_RECORD_COERCIONS
• NIDCPOWER_ATTRIBUTE_INTERCHANGE_CHECK
• NIDCPOWER_ATTRIBUTE_SPECIFIC_DRIVER_DESCRIPTION
• NIDCPOWER_ATTRIBUTE_SPECIFIC_DRIVER_PREFIX
• NIDCPOWER_ATTRIBUTE_SPECIFIC_DRIVER_VENDOR
• NIDCPOWER_ATTRIBUTE_SPECIFIC_DRIVER_REVISION
• NIDCPOWER_ATTRIBUTE_SPECIFIC_DRIVER_CLASS_SPEC_MAJOR_VERSION
• NIDCPOWER_ATTRIBUTE_SPECIFIC_DRIVER_CLASS_SPEC_MINOR_VERSION
• NIDCPOWER_ATTRIBUTE_SUPPORTED_INSTRUMENT_MODELS
• NIDCPOWER_ATTRIBUTE_GROUP_CAPABILITIES
• NIDCPOWER_ATTRIBUTE_CHANNEL_COUNT
• NIDCPOWER_ATTRIBUTE_INSTRUMENT_MANUFACTURER
• NIDCPOWER_ATTRIBUTE_INSTRUMENT_MODEL
• NIDCPOWER_ATTRIBUTE_INSTRUMENT_FIRMWARE_REVISION
• NIDCPOWER_ATTRIBUTE_SERIAL_NUMBER
• NIDCPOWER_ATTRIBUTE_DRIVER_SETUP
• NIDCPOWER_ATTRIBUTE_LOGICAL_NAME
• NIDCPOWER_ATTRIBUTE_IO_RESOURCE_DESCRIPTOR

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050002	ViBoolean	R/W	Session	None	niDCPower_InitializeWithIndependentChannels

Specifies whether to validate attribute values and function parameters.

If this attribute is enabled, NI-DCPower validates the parameter values that you pass to NI-DCPower functions. Range checking parameters is useful for debugging. After you validate your program, you can set this attribute to VI_FALSE to disable range checking and maximize performance.

Use the niDCPower_InitializeWithIndependentChannels function to override the default value.

Default Value: VI_TRUE.

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050003	ViBoolean	R/W	Session	None	None

Specifies whether NI-DCPower queries the instrument status after each operation.

Querying the instrument status is useful for debugging. After you validate your program, you can set this attribute to VI_FALSE to disable status checking and maximize performance.

NI-DCPower ignores status checking for particular attributes regardless of the setting of this attribute.

Use the niDCPower_InitializeWithIndependentChannels function to override this value.

Default Value: VI_TRUE

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050004	ViBoolean	R/W	Session	None	niDCPower_InitializeWithChannels

Specifies whether to cache the value of attributes.

When caching is enabled, NI-DCPower records the current instrument settings and avoids sending redundant commands to the instrument. Enabling caching can significantly increase execution speed.

NI-DCPower might always cache or never cache particular attributes regardless of the setting of this attribute.

Use the niDCPower_InitializeWithIndependentChannels function to override this value.

Default Value: VI_TRUE

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050005	ViBoolean	R/W	Session	None	niDCPower_InitializeWithIndependentChannels

Specifies whether to simulate NI-DCPower I/O operations. VI_TRUE specifies that operation is simulated.

Defined Values:

VI_FALSE (0)	Do not simulate NI-DCPower I/O operations.
VI_TRUE (1)	Simulate NI-DCPower I/O operations.

Default Value: VI_FALSE

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050006	ViBoolean	R/W	Session	None	None

Specifies whether the IVI engine records the value coercions it makes for ViInt32 and ViReal64 attributes. Call the niDCPower_GetNextCoercionRecord function to read and delete the earliest coercion record from the list.

Default Value: The default value is VI_FALSE. Use the niDCPower_InitializeWithIndependentChannels function to override this value.

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050021	ViBoolean	R/W	Session	None	niDCPower_InitializeWithIndependentChannels

Specifies whether to perform interchangeability checking and log interchangeability warnings when you call NI-DCPower functions. VI_TRUE specifies that interchangeability checking is enabled.

Interchangeability warnings indicate that using your application with a different instrument might cause different behavior. Call the niDCPower_GetNextInterchangeWarning function to retrieve interchange warnings.

Call the niDCPower_GetNextInterchangeWarning function to clear the list of interchangeability warnings without reading them.

Interchangeability checking examines the attributes in a capability group only if you specify a value for at least one attribute within that group. Interchangeability warnings can occur when an attribute affects the behavior of the instrument and you have not set that attribute or when the attribute has been invalidated since you set it.

Default Value: VI_FALSE

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050514	ViString	RO	Session	None	None

Contains a brief description of the specific driver.

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050302	ViString	RO	Session	None	None

Contains the prefix for NI-DCPower. The name of each user-callable function in NI-DCPower begins with this prefix.

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050513	ViString	RO	Session	None	None

Contains the name of the vendor that supplies NI-DCPower.

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050551	ViString	RO	Session	None	None

Contains additional version information about NI-DCPower.

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050515	ViInt32	RO	Session	None	None

Contains the major version number of the class specification with which NI-DCPower is compliant.

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050516	ViInt32	RO	Session	None	None

Contains the minor version number of the class specification with which NI-DCPower is compliant.

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050327	ViString	RO	Session	None	None

Contains a comma-separated (,) list of supported NI-DCPower instrument models.

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050401	ViString	RO	Session	None	None

Contains a comma-separated list of class-extension groups that NI-DCPower implements.

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050203	ViInt32	RO	Session	None	None

Indicates the number of channels in the session. For channel-based attributes, the IVI engine maintains a separate cache value for each channel.

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050511	ViString	RO	Instrument	None	None

Contains the name of the manufacturer for the instrument you are currently using.

Note  To specify an instrument name when accessing this attribute, you must first initialize the session using the niDCPower_InitializeWithIndependentChannels function

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050512	ViString	RO	Instrument	None	None

Contains the model number or name of the instrument that you are currently using.

Note  To specify an instrument name when accessing this attribute, you must first initialize the session using the niDCPower_InitializeWithIndependentChannels function

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050510	ViString	RO	Instrument	None	niDCPower_revision_query

Contains the firmware revision information for the device you are currently using.

Note  To specify an instrument name when accessing this attribute, you must first initialize the session using the niDCPower_InitializeWithIndependentChannels function

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1150152	ViString	RO	Instrument	None	niDCPower_revision_query

Contains the serial number for the instrument you are currently using.

Note  To specify an instrument name when accessing this attribute, you must first initialize the session using the niDCPower_InitializeWithIndependentChannels function

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050007	ViString	RO	Session	None	niDCPower_InitializeWithIndependentChannels

Indicates the Driver Setup string that you specified when initializing the driver.

Some cases exist where you must specify the instrument driver options at initialization time. An example of this case is specifying a particular device model from among a family of devices that the driver supports. This attribute is useful when simulating a device. You can specify the driver-specific options through the DriverSetup keyword in the optionsString parameter in the niDCPower_InitializeWithIndependentChannels function or through the IVI Configuration Utility.

If you do not specify a Driver Setup string, this attribute returns an empty string.

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050305	ViString	RO	Session	None	None

Contains the logical name(s) you specified when opening the current IVI session.

Note  IVI logical names are not supported in sessions created using the niDCPower_InitializeWithIndependentChannels function

You can pass a logical name to a deprecated initialize function. The IVI Configuration utility must contain an entry for the logical name. The logical name entry refers to a function section in the IVI Configuration file. The function section specifies a physical instrument and initial user options.

Numeric Value	Data type	Access	Applies to	Coercion	High-Level Functions
1050304	ViString	RO	Session	None	None

Indicates the resource descriptor NI-DCPower uses to identify the resource(s) used by the NI-DCPower session.

The resource name specified with the niDCPower_InitializeWithIndependentChannels function can include instrument(s) and/or channel(s) but does not support logical names.

If you initialize NI-DCPower with a logical name using a deprecated initialize VI, this attribute contains the resource descriptor that corresponds to the entry in the IVI Configuration utility.

If you initialize NI-DCPower with the resource descriptor, this attribute contains that value.