Agilent Technologies Agilent E5250A Modifying a Sample Program , Using the Virtual Front Panel (VFP) Utility

5-4 Agilent E5250A User’s Guide, Edition 9

Controlling the E5250A

Methods for Controlling the E5250A

This subprogram library is used to c onvert 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. Disabl e the output voltage of bias source

2. Connect the relay

3. Enabl e the output voltage of bias sourc e

4. Make measurements

5. Disabl e 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 cr eate 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 bui lt-in In str ument BASIC

(IBASIC) controller. You can control the E5250A interactively without the control

program.

Refer to “Using Virtual Front Panel Utility” on page 5-25.