HP 54501A - Infinity Representation

Example
2:
OUTPUT
707;":TIMEBASE:REFERENCE
CENTER
;DELAY
0.00001"
or
OUTPUT
707;":TIMEBASE:REFERENCE
CENTER"
OUTPUT
707;":TIMEBASE:DELAY
0.00001"
Comments: In
the
first
line
of
example
2,
the
"subsystem
selector"
is implied
for
the
DELAY
command
in the
compound
command.
The
DELAY
command
must
be
in the
same
program
message
as
the
REFERENCE
command,
because
the
<
program
message
terminator
>
will place
the
parser
back
at
the
root
of
the
command
tree.
A
second
way
to send
these
commands
is
by
placing
"TIMEBASE:"
before
the
DELAY
command
as
shown
in
example
2.
Example
3:
OUTPUT
707;":TIM:REF
CENTER
;
:CHAN1:OFFSET
0"
Comments:
The
leading
colon
before
CHAN1
tells
the
parser
to
go
back
to
the
root
of
the
command
tree.
The
parser
can
then
see
the
CHAN1:OFFSET
command.
Infinity
The
representation
of
infinity
is
9.99999E+37.
This
is
also
the
value
ReDresentation
returned
when
a
measurement
cannot
be
made.
Programming
and
Documentation
Conventions
4.6
HP
54501A
Programming