Syntax

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Boonton55xxx IVI Driver Reference

BTN55XXX_ATTR_LEVEL Attribute
Trigger See Also

Set or return the trigger level for synchronizing data acquisition with a pulsed input signal. The internal trigger level entered should include any global offset and will also be affected by the frequency cal factor. The available internal trigger level range is sensor dependent. The trigger level is set and returned in dBm.

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

Declaration: Btn55xxx.h

Implementation: Btn55xxx.dll

Visual C++

#define BTN55XXX_ATTR_LEVEL 1150005
ViStatus Btn55xxx_GetAttributeViReal64(
ViSession Vi,
ViConstString RepCapIdentifier,
ViAttr AttributeID,
ViReal64* AttributeValue
);
ViStatus Btn55xxx_SetAttributeViReal64(
ViSession Vi,
ViConstString RepCapIdentifier,
ViAttr AttributeID,
ViReal64 AttributeValue
);

Parameters

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_LEVEL.

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

Note that there is a small amount of hysteresis built into the trigger system, and the signal should have at least one dB greater swing in each direction past the trigger level setting, and somewhat more at low levels.

Note that explicitly setting the trigger level while TRIGger:MODe is set to AUTOPKPK will cancel the AUTOPKPK setting, and force the trigger mode back to AUTO.

Instrument Command

TRIGger:LEVel {value}

TRIGger:LEVel?

Requirements

Supported Models

All supported