Dynamic Generation:Initial State Property

NI Digital Waveform Generator/Analyzer Help

Edition Date: June 2013

Part Number: 370520P-01

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Short Name: InitialState

Property of niHSDIO

Specifies a dynamic generation channel state after the session is initiated and before the first waveform sample is generated. The channel changes to the Initial state after the data operation has been initiated. When the Start trigger occurs, the Initial state is replaced by the first sample in the waveform.

Channels explicitly disabled with the niHSDIO Tristate VI remain disabled, but the channel data value changes internally. Re-enabling a channel with the niHSDIO Tristate VI while the device is waiting for a Start trigger causes the channel to go to its Initial state.

This property is valid only for generation sessions.

Related Topics

Tristate (24)

Sets the channel to a high-impedance state.

Note   NI 656 x devices do not support the tristate Initial state.
Logic high (1)

Sets the channel to a logic-high (high level) state.

Logic low (0)

Sets the channel to a logic-low (low level) state.

Hold last value (27)

The channel retains its previous value.


The following table lists the characteristics of this property.

Datatype iL
High-level VIs niHSDIO Configure Initial State
Channel-based Yes


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