24
Chapter 2
Controlling the Test Set and Making Measurements
Commands
Commands
As previously mentioned, there are three ways to control the test set.
The first two involve the use of a separate computer. The third way uses
the network analyzer manually. These methods of control are detailed
in the following sections.
Computer Control via Network Analyzer
One way to control the test set is to write GPIB commands to the
8753ES/ET network analyzer which then writes to the test set by way
of the parallel port. See
Figure 2-2 on page 25
for a diagram of
connections for this type of control. The following examples use the
variable [D] which is defined in
Table 2-1 on page 26
.
To use a parallel port connection with the 8753D/E analyzer, 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;"
Sets the parallel port for
GPIO function
OUTPUT 716;"PARAOUT[D];"
Programs all GPIO output
bits (0 to 256) at once
NOTE
Be sure to use the ending semi-colon.
Direct Computer Control
The second way to control the test set is to address the
87075C Option H08 test set directly over GPIB, using a controller to
write directly to the test set's GPIB port. The following example
assumes that the address of the test set is 12.
If using Quick Basic or Visual Basic, be sure to disable EOI and EOL
before sending commands to the test set. Including the semicolon will
not insure that these commands are disabled as would be the case in
Basic/RMB. Using the Agilent 82335 GPIB Interface and Visual Basic,
the following commands will disable the EOI and EOL, send the
necessary data to the test set, and re-enable EOI and EOL. Be sure to
re-enable the EOI and EOL before sending data to another instrument.
HpibEoi(hHpib;7,0) 'disable EOI
HpibEol(hHpib;7,"",0) 'disable EOL
HpibOutput(hHpib;712,chr$([D])) 'send command to
test set
HpibEol(hHpib;7,chr$(13)+chr$(10),2) 're-enable EOL
and set to'chr$(13)+chr$(10)
HpibEoi(hHpib;7,1,) 're-enable EOI
Содержание 87075C Option H08
Страница 1: ...Agilent Technologies 87075C Option H08 User s and Service Guide ...
Страница 2: ......
Страница 6: ...4 User s and Service Guide Supplement ...
Страница 9: ...7 1 General Information ...
Страница 22: ...20 Chapter1 General Information Performing the Operator s Check ...
Страница 23: ...21 2 Controlling the Test Set and Making Measurements ...
Страница 38: ...36 Chapter2 Controlling the Test Set and Making Measurements Calibrating the Test System ...
Страница 39: ...37 3 Front Rear Panel ...
Страница 45: ...43 4 Service ...
Страница 60: ...58 Chapter4 Service Theory of Operation ...
Страница 61: ...59 5 Safety and Regulatory Information ...
