Syntax

Set or return the fine position of the trigger event on displayed sweep.

Attribute Tree Node: \Boonton55xxx\Instrument Specific\Trigger\Vernier

Declaration: Btn55xxx.h

Implementation: Btn55xxx.dll

Parameters

Vi

The ViSession handle that you obtain from the IviDriver_init or IviDriver_InitWithOptions function. The handle identifies a particular instrument session.

RepCapIdentifier

Must be VI_NULL or an empty string. This attribute is not defined on a repeated capability.

AttributeID

Must be BTN55XXX_ATTR_VERNIER.

AttributeValue (GetAttribute)

Returns the current value of the attribute. The user must specify the address of a variable that has the same data type as the attribute.

AttributeValue (SetAttribute)

The value to which to set the attribute.

Remarks

The position is given in divisions relative to the left edge of the screen, so with zero trigger delay, setting the vernier control to 0.0 causes the entire trace to be post-trigger. Setting it to 10.0 causes the entire trace to be pre-trigger. And setting to 5.0 will display both the pre- and post-trigger portions of the trace.

Note that the trigger delTRIGger:VERNierTRIGger:VERNierTRIGger:VERNierTRIGger:VERNay setting is in addition to this setting, and will cause the trigger position to appear in a different location. Setting the trigger vernier places the power meter in trigger vernier mode, which overrides the fixed "Left, Middle, Right" settings of the trigger position command.

Instrument Command

TRIGger:VERNier {value}

TRIGger:VERNier?

Range

-30 ≤ value ≤ 30

Requirements

Supported Models

All supported

See Also

Reference

Trigger

Btn55xxx

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