Reading Measurement Results Using Data Buffer - Keysight E4981A Programming Manual

Measurement Applications (Sample Programs)

Reading Measurement Results Using Data Buffer

Reading Measurement Results Using Data Buffer
This application program reads measurement data in ASCII format using data
buffer.
The program of
below is inserted as a comment line in the program. For details on the VISA
functions, refer to the I/O Library Suite manual.
Configuration
Open Instrument Assigns a USB address or GPIB address to the I/O bus.
Setup Start
Measurement
Setup End
ErrorProc
ErrorCheck
SelectMode
132
Example 9-12 is described in detail below. Each explanation
Define Variables and initialize the program.
Presets the E4981A. Sets the Data buffer memory to 5
points. Sets the trigger conditions of the E4981A.
Reads the measurement data using the :FETCh? command
for 5 memory data points, separates the returned ASCII
format character string data with commas, and displays the
Primary and Secondary Measurement data for all memory
points.
Closes the I/O bus.
Displays an error number when an error occurs.
A subroutine to check whether an error occurs when the IO
Library Suite function is executed.
A subroutine to change assignment of the I/O bus and
address setting according to the connection type i.e. USB
or GPIB between the E4981A and a PC.
Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter