Infinity Representation - HP 54501A Programming Reference Manual

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