Table of Contents
Advertisement
87050A Option K24
Operation
The Agilent 87050A Option K24 is a "slave" instrument: a controller must be used to
control the test set. There are three ways in which the test set can be controlled:
• The controller can talk to the network analyzer GPIB, which then controls the test set
via the parallel connection
• The controller can control the test set directly via GPIB
• A network analyzer equipped with a parallel connection can control the test set directly
Typeface Key Conventions
The following key conventions are used throughout this document.
• [HARDKEYS] are labeled front panel keys
• SOFTKEYS are unlabeled key whose function is indicated on the instrument display
Commands
As mentioned earlier, the test set can be controlled in three ways. The first two involve the
use of a separate computer. The third way uses the network analyzer manually. These
methods of control are detailed below and on the following page.
Computer Control
The first way to control the test set is to write GPIB commands to the network analyzer
which then writes to the test set by way of the parallel port. See
diagram of connections for this type of control. The following examples use the variable [D]
which is defined in
Table 4 on page
To use a parallel port connection with the 8720D, use a GPIB command to write bits on the
parallel port. The following example assumes that the address of the network analyzer is
16.
OUTPUT 716;"PARALGPIO;"
OUTPUT 716;"PARAOUT[D];"
NOTE
Be sure to use the ending semi-colon.
The second way to control the test set is to address the 87050A Option K24 test set directly
over GPIB, using a controller to write directly to the test set GPIB port. The following
example assumes that the address of the test set is 12.
OUTPUT 712;"STRING$"
18
20.
Sets the parallel port for GP-IO function
Programs all GP-IO output bits
(0 to 256) at once
Operation
Figure 10 on page 19
User's and Service Guide
for a
Advertisement
Table of Contents
Troubleshooting
