Modifying A Sample Program; Using The Virtual Front Panel (Vfp) Utility - Agilent Technologies Agilent E5250A User Manual

Controlling the E5250A
Methods for Controlling the E5250A
VFP Data Upload Library
This subprogram library is used to convert the control data created by the Virtual
Front Panel (VFP) Utility to data that can be used with your program runs on HP
BASIC. To use this library, link it to your program. For details, refer to Chapter 6.
CAUTION Open or close the relay without allowing the output voltage to affect the relay by
using the following procedure.
1. Disable the output voltage of bias source
2. Connect the relay
3. Enable the output voltage of bias source
4. Make measurements
5. Disable the output voltage of bias source
6. Disconnect the relay
If the relay is opened and output voltage reaches the relay, the relay may be
damaged or its service life reduced.

Modifying a Sample Program

The sample programs furnished with the E5250A are useful for creating your
program on HP BASIC. You can create your desired program easily by modifying a
sample program. To understand the sample programs and how to modify, refer to
Chapter 9.
Also, you can use the Capacitance Compensation Routine and the VFP Data Upload
Library introduced in "Creating Your Own Program" on page 5-3.

Using the Virtual Front Panel (VFP) Utility

The Virtual Front Panel (VFP) Utility is used to control the E5250A by using
Agilent 4155/4156 Semiconductor Parameter Analyzer's built-in Instrument BASIC
(IBASIC) controller. You can control the E5250A interactively without the control
program.
Refer to "Using Virtual Front Panel Utility" on page 5-25.
5-4 Agilent E5250A User's Guide, Edition 11