Checking The Gpib Port - Agilent Technologies PNA Series Service Manual

PNA Series Microwave Network Analyzers
E8361A

Checking the GPIB Port

The network analyzer uses a National Instruments 488.2 GPIB controller and associated
driver software. This software includes a test utility which scans the GPIB bus and returns
the status of all the connected peripherals.
To run the test utility software and check the GPIB status:
1. Connect a known good peripheral to the analyzer using a known good GPIB cable.
2. On the menu, point to
System
box is displayed.
3. In the block, click
GPIB
for the analyzer to configure, and then click
4. On the menu, click
System
5. On the
Start Menu
click
Explore GPIB
6. On the left side of the
a. Click the plus sign to expand the
b. Click the plus sign to expand the
c. Right click
GPIB0 (AT-GPIB/TNT)
7. On the submenu, click
8. The state of all the peripherals found on the bus is returned.
9. If problems are detected, check the connections of all GPIB cables, and check all the
GPIB addresses of the instruments on the bus.
NOTE Address Information
• Each device must have its own unique address.
• The network analyzer's default GPIB address in the controller mode is 21.
• The address set on each device must match the one recognized by the
analyzer (and displayed).
Refer to the manual of the peripheral to read or change its address.
Troubleshooting Systems with Controllers
Passing the preceding test indicates that the analyzer's peripheral functions are operating
normally. Therefore, if the analyzer has not been operating properly with an external
controller, check the following:
• The GPIB interface hardware is incorrectly installed or not operational. (Refer to the
embedded help in your analyzer.)
• The programming syntax is incorrect. (Refer to the embedded help in your analyzer.)
Service Guide E8361-90001
Configure,
System Controller
Windows Taskbar
window, point to
Programs, National Instruments NI-488.2,
to open the
Measurement & Automation
Measurement & Automation
Measurement & Automation
Devices and Interfaces
to open a submenu.
Scan for Instruments
and then click
SCPI/GPIB
to establish the analyzer as a controller. Wait
.
OK
to open the
Start Menu
window.
window under folders:
folder.
to run the test.
Troubleshooting
Rear Panel Troubleshooting
. A dialog
SCPI/GPIB
window.
and then
folder.
4- 23