Configure Data Position Delay
- Updated2023-02-17
- 3 minute(s) read
Configure Data Position Delay
Configures the data position delay with respect to the Sample clock.
This node is only valid when the position parameter of the Configure Data Positionnode is set to Delay From Sample Clock Rising Edge for these channels.
Inputs/Outputs
session in
Instrument session obtained from the Initialize Acquisition Sessionnode, the Initialize Generation Sessionnode, or the Initialize External Calibrationnode.
channel list
The channels you want to apply settings to. Leave channel list blank to apply to all channels.
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.
error in
Error conditions that occur before this node runs.
The node responds to this input according to standard error behavior.
Default value: No error
session out
Handle that identifies the session in all subsequent node calls.
The session out parameter is obtained from the Initialize Acquisition Sessionnode or the Initialize Generation Sessionnode.
error out
Error information.
The node produces this output according to standard error behavior.
Configuring data position delay on your hardware
The PXIe-6547/6548 supports multibank data delay. All channels with the position parameter of the Configure Data Positionnode 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 |