Table Of Contents

Configure Data Position Delay (G Dataflow)

Version:
Last Modified: September 27, 2017

Configures the data position delay with respect to the Sample clock.

This node is only valid when the position parameter of the Configure Data Position node is set to Delay From Sample Clock Rising Edge for these channels.

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session in

Instrument session obtained from the Initialize Acquisition Session node, the Initialize Generation Session node, or the Initialize External Calibration node.

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channel list

The channels you want to apply settings to. Leave channel list blank to apply to all channels.

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delay

The specified delay after the Sample clock rising edge when the device generates or acquires a new data sample.

Data delay is expressed as a fraction of the clock period.

All channels in the session that use the Delay From Sample Clock Rising Edge data position must have the same delay value.

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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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session out

Handle that identifies the session in all subsequent node calls.

The session out parameter is obtained from the Initialize Acquisition Session node or the Initialize Generation Session node.

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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.

Configuring data position delay on your hardware

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Note  

On PXIe-6555/6556 devices, you can configure data position delay on a per channel basis.

The PXIe-6547/6548 supports multibank data delay. All channels with the position parameter of the Configure Data Position node set to Delay From Sample Clock Rising Edge and assigned to the same data delay bank must share a data delay value, even if the position of other channels on that bank are configured to Sample Clock Rising Edge or Sample Clock Falling Edge. NI-HSDIO returns an error if you set different delay values for two channels within the same bank.

The following table shows which channels belong to each bank.

Channels Bank Number
0-3 0
4-7 1
8-11 2
12-15 2
16-19 0
20-23 1
24-27 2
28-31 0
PFI 0-3 0
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Note  

DDR and extended data states do not change the bank assignments.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported

Web Server: Not supported in VIs that run in a web application


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