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S:\agilent\8920\8920b\PRGGUIDE\BOOK\CHAPTERS\advoper.fb
Chapter 5, Advanced Operations
Passing Control
1. If a program is running on the HP
®
9000 Workstation, PAUSE the program.
2. Put the Test Set in local mode (press the LOCAL key on the front panel).
3. Configure the Test Set to print to the GPIB printer using the PRINT CONFIGURE
screen.
4. Configure the Test Set to display the screen to be printed.
5. From the keyboard of the HP
®
9000 Workstation type in and execute the following
command:
OUTPUT 714;"*PCB 21"
This command tells the Test Set the address of the Controller to pass control back to.
6. From the keyboard of the HP
®
9000 Workstation type in and execute the following
command:
PASS CONTROL 714
This command passes control to the Test Set.
7. Put the Test Set in local mode (press the LOCAL key on the front panel).
8. Press SHIFT , then TESTS on the front panel of the Test Set to print the screen.
9. After the Test Set finishes printing the screen it will automatically pass control back to
the HP
®
9000 Workstation.
Passing Control Between an External Controller and the Test Set with an IBASIC
Program Running
The following example program illustrates the passing of control between an
external Controller and the Test Set while an IBASIC program is running in the
Test Set. The example is based upon having an HP
®
9000 Series 300 Workstation
as the external controller connected to the Test Set through the GPIB bus. Further,
it is based on the assumption that the GPIB interface in the HP
®
9000 Controller is
set to the default select code of 7 and address of 21. In this example, the Test Set is
NOT configured as the System Controller. This example illustrates the situation
where the External Controller would perform the functions listed below.
1. Sends commands to the Test Set to cause a program to be loaded off of a Memory Card
which is in the Test Set’s front panel Memory Card slot.
2. Sends commands to the Test Set to run the program just loaded.
3. Passes control to the Test Set and then does other work while the Test Set is making
measurements.
When the Test Set is finished making measurements and has data available for the
External Controller, it passes control back to the External Controller.
4. The External Controller then requests the data from the Test Set.