Specifications

242 Chapter 14
Outline of Programming Using COM
E4991A COM Object Model
E4991A COM Object Model
The following objects are prepared for the E4991A.
Figure 14-1 E4991A COM Object Model
Application Object
The application object is positioned at the top of the hierarchical structure of the E4991A
COM object model.
Property
Name Reads the application name “E4991A”.
VBAVersion Reds the version of the E4991A VBA.
Connection Reads whether it is connected with the E4991A by using the user
interface function.
Method
SingleMeasure Performs sweep and waits until completion.
CalMeasure Measures calibration data and waits until completion.
CompenMeasure Measures fixture compensation data and waits until completion.
GetTextData Copies setting condition or measured data on the clipboard.
GetScreenImage Copies screen image to the clipboard.
WaitForEvent Waits for occurrence of specified event for specified period of time.
Event
SweepEnd Indicates that the sweep was completed.
SweepStart Indicates that the sweep has started.
CompleteSweepAveraging Indicates the completion of the specified number of times of
sweep averaging.
Unlocked Indicates that “PLL Unlock” error was detected in the E4991A.
DcBiasOverLoad Indicates that “DC bias overload” error was detected in the E4991A.
RfOverLoad Indicates that “RF overload” error was detected in the E4991A.