Agilent Technologies 4294A, Programming Manual

Page: 280 / 518

280 Chapter 16
GPIB Command Reference
CLOSE
CLOSE
Syntax CLOSE
Description Returns a file, which has been read/write-enabled using the “ROPEN”(412page) command
or “WOPEN”(462page) command, to access-disabled status. If this command is executed
before reading process using the “READ?”(407page) command completes, an error occurs.
Generally, this command is used in combination with the “ROPEN”(412page) command
and “READ?”(407page) command or the “WOPEN”(462page) command and the
“WRITE”(463page) command, as shown in Figure 16-8 on page 412. (No query)
Corresponding
key No front panel key is available to execute this function.
COLO
Syntax
COLO
{TRAD|TRAM|TRBD|TRBM|GRAT|WARN|TEXT|IBT|PEN1|PEN2|PEN3|PEN4|PEN5|PEN6}
COLO?
Description Specifies a display item to which the changes of the brightness (set with the “CBRI”
command on page 276), chroma (set with the “COLOR” command on page 281), and tint
(set with the “TINT” command on page 454) of the display color are applied.
Parameters
Query response
{TRAD|TRAM|TRBD|TRBM|GRAT|WARN|TEXT|IBT|PEN1|PEN2|PEN3|PEN4|PEN5|PEN6}<ne
wline><^END>
Corresponding
key
[Display]
-
more 1/2
-
MODIFY COLOR
-
MODIFY ITEM COLOR
- {
TRC A DATA
|
TRC A
MEM LIMIT LINE
|
TRC B DATA
|
TRC B MEM LIMIT LINE
|
GRATICULE
}
[Display]
-
more 1/2
-
MODIFY COLOR
-
MODIFY ITEM COLOR
-
more 1/3
- {
WARNING
|
TEXT MARKER
|
IBASIC
|
PEN 1
|
PEN 2
}
[Display]
-
more 1/2
-
MODIFY COLOR
-
MODIFY ITEM COLOR
-
more 1/3
-
more 2/3
-
{
PEN 3
|
PEN 4
|
PEN 5
|
PEN 6
}
Description
TRAD (Initial value) Specifies the trace A data trace as the change target.
TRAM Specifies the trace A memory trace as the change target.
TRBD Specifies the trace B data trace as the change target.
TRBM Specifies the trace B memory trace as the change target.
GRAT Specifies the grid and some softkey labels as the change target.
WARN Specifies warning notification text as the change target.
TEXT Specifies the measured data and text except for warning
notification text as the change target.
IBT Specifies text on the Instrument BASIC screen as the change
target.
PEN1-PEN6 Specifies pen 1 to pen 6 on the Instrument BASIC screen as the
change target.