Immediate

Configures common properties for immediate triggering. Immediate triggering means the digitizer triggers itself.

1378

Inputs/Outputs

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session in

Handle that identifies the NI-SCOPE instrument session as previously allocated by Initialize With Options .

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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

Default value: No error

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session out

Reference to the NI-SCOPE instrument session to pass to the next node in the program.

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error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Hardware Support

This node does not support the following hardware: PXIe-5622

Trigger System Operation

When you initiate an acquisition, the trigger system operates in the following manner:

  • The digitizer waits for the start trigger, which is configured through the Start Trigger Source property. The default value is immediate.
  • Upon receiving the start trigger, the digitizer begins sampling pretrigger points.
  • After the digitizer finishes sampling pretrigger points, the digitizer waits for a reference (stop) trigger that you specify with an instance of Configure Trigger.
  • Upon receiving the reference trigger and then after completing posttrigger sampling, the digitizer finishes the acquisition.

You specify configuration parameters such as the trigger source and trigger delay with each Configure Trigger instance. Additionally, you can adjust the amount of pretrigger and posttrigger samples using reference position in Configure Horizontal Timing. The default is half the record length.

For multirecord acquisitions, all records after the first record are started based on the setting of the Advance Trigger Source property. The default value is immediate.

Note Some features are not supported by all digitizers.