Write/Read

About Diff I/Q App

Description

Sets and reads the ON/ OFF state of phase control.

On the Source Configuration dialog under Phase, this is the Phase State setting.

 VB Syntax

DIQ.PortPhaseState (port) = value

Variable

(Type) - Description

DIQ

A Differential I/Q (object)

port

(String) Source port name. Use SourcePortNames to read a list of valid source ports.

value

(Enum as NAPhaseControlMode)  Choose from:

• naPhaseControlOff or 0 -  Phase is NOT set or controlled.

• naPhaseControlParameter or 1 - Phase is measured and iterated to within the specified tolerance. Specify the receivers and iteration properties using the Source:Phase commands.

• naPhaseControlOpenLoop or 3- Phase is set, but receivers are NOT used to measure and iterate the phase of the source. Therefore, the setting of phase is not as accurate or stable. Open Loop mode can be used with phase sweep (for example, from 0 to 360 degrees). However, each sweep may not start at 0 degrees. NO settings on the Phase Control Setup dialog are used in Open Loop.  After selecting Open Loop, set each source to ON (not Auto).

Return Type

Enum

Default

naPhaseControlOff or 0

Examples

diq.PortPhaseState = naPhaseControlOff 'Write

value = diq.PortPhaseState 'Read

C++ Syntax

HRESULT get_PortPhaseStateBSTR port, (tagNAPhaseControlMode* PortPhaseState);

HRESULT put_PortPhaseState(BSTR port, tagNAPhaseControlMode PortPhaseState);

Interface

IDifferentialIQ

18-Mar-2014

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