Programming Pitfalls
Certain combinations of commands and changes of values, can cause
conflict within the instrument. Sometimes, this is merely because the
instrument refers to a stored value that is no longer compatible. The
known pitfalls detailed in this section should be of help.
Sweep
When the instrument is controlled by the sweep or list subsystem
several commandsJqueries are not allowed. Table
4-6
shows all
commands and whether they (or their query) is allowed/has a
special effect when issued while the instrument is in
FREQ:MODE
SWEEP or in
FREQ:MODE
LIST. The commands are given in their
short form with optional command nodes deleted; trailing ellipses
("
.
.
.
")
on
a
command, indicate that the table entry is valid for all
sub commands that might follow the command. Command aliases
(e-g. VOLT
I
POW
I
CURR) are not shown.
Table
4-6.
Illegal
El440
Commands in
FREQMODE
LIST
/
SWEEP
I
Command
cmd
-
(1)
-
-
-
-
(2)
-
ILL
ILL
ILL
ILL
-
-
ILL
ILL
ILL
ILL
ILL
ILL
ILL
ILL
-
-
ILL
Mode
List
Mode
cmd
sweep
-
-
4-14
Understanding the
HP E1440A
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com