HP 54501A - Dsp

DSP
DSP
command/query
The
:SYSTEM:DSP
command
writes
a
quoted
string,
excluding
quotes,
to
the
advisory
line
(line
1)
of
the
CRT.
The
DSP
query returns
the
last
string
written
to the
advisory
line.
This
may
be
a
string
written
with
a
DSP
command
or
an
internally
generated
advisory.
The
string
is
actually
read from
the
message
queue.
The
message
queue
is
cleared
when
it
is
read.
Therefore
the
displayed
message can
only
be
read
once
over
the
bus.
Command Syntax:
:SYSTem:DSP
<quoted
ASCII string >
Example:
OUTPUT
707;"SYSTEM:DSP
""This is
a
message"""
Query
Syntax:
:SYSTem:DSP?
Returned
Format:
[SYSTem:DSP]
<stringxNL>
Where:
<
string
>
::
=
string
response
data containing
the
last information written
on
the
advisory
line
Example:
DIM
Display$[100]
OUTPUT 707;"SYSTEM:DSP?"
ENTER
707;
Displays
PRINT
Displays
HP
54501A
Programming
System
Subsystem
7-3