Table Of Contents

Configure Acquisition (G Dataflow)

Last Modified: March 3, 2017

Configures how the digitizer acquires data and fills the waveform record.

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session in

Identifies a particular instrument session.

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error in

Error conditions that occur before this node runs.

The node responds to this input according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Default: No error

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acquisition type

The manner in which the digitizer acquires data and fills the waveform record.

Not all digitizers support all acquisition types.

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Note  

Acquisition type DDC applies to the NI 5620/5621 only. To use DDC mode in the NI 5142, leave acquisition type set to Normal and set the DDC Enabled property to True.

Name Value Description
Normal 0 Sets the digitizer to normal resolution mode. The digitizer can use real-time sampling or equivalent-time sampling.
Flex Res 1 Sets the digitizer to flexible resolution mode, if supported. The digitizer uses different hardware configurations to change the resolution depending on the sampling rate used.
DDC 3 Sets the NI 5620 or 5621 digitizer to DDC mode.

Default: Normal

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session out

Passes the instrument handle to the next node in the program. This parameter has the same value as session in.

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error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported


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