Digital Edge

Configures the device to wait for a digital edge Reference Trigger to mark a reference point within the record.

Note You can use this trigger with the NI-TClk API. The PXIe-5644/5645/5646 do not support the NI-TClk API.

Inputs/Outputs

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session in

Instrument session obtained from 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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source

Source of the digital edge for the Reference Trigger.

PFI0 The trigger is received on PFI 0.
PFI1 The trigger is received on PFI 1.
PXI_Trig0 The trigger is received on PXI trigger line 0.
PXI_Trig1 The trigger is received on PXI trigger line 1.
PXI_Trig2 The trigger is received on PXI trigger line 2.
PXI_Trig3 The trigger is received on PXI trigger line 3.
PXI_Trig4 The trigger is received on PXI trigger line 4.
PXI_Trig5 The trigger is received on PXI trigger line 5.
PXI_Trig6 The trigger is received on PXI trigger line 6.
PXI_Trig7 The trigger is received on PXI trigger line 7.
PXI_STAR The trigger is received on the PXI star trigger line.

This value is not supported by the PXIe-5644/5645/5646.

PXIe_DStarB The trigger is received on the PXIe DStar B trigger line.

This value is valid on only the PXIe-5820/5840.

TimerEvent The trigger is received from Timer Event on the digitizer.

This value is valid on only the PXIe-5820/5840 and for digital edge Advance triggers on the PXIe-5644/5645/5646 and the PXIe-5663E/5665.

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edge

Trigger edge to detect.

Rising Edge NI-RFSA detects a rising edge.
Falling Edge NI-RFSA detects a falling edge.

Default value: Rising Edge

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pretrigger samples

Number of samples to store for each record that is acquired immediately before the trigger occurs.

Default value: 0

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session out

Reference to your instrument session passed to the next node.

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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 supports the following hardware:

  • PXIe-5644/5645/5646
  • PXIe-5663E/5665/5667/5668
  • PXIe-5820/5840