HP 54501A Programming Reference Manual page 217

COMPare
Query Syntax:
:MEASure:COMPare?
<
measurement
>
Where:
<
measurement
>
:;=
{RISetime |
FALLtime
|
FREQuency
|
PERiod
| PWIDth |
NWIDth
|
VAMPIitude
| VBASe | VTOP | VPP | VAVerage | VMAX | VMIN | VRMS |
DUTycycle |
DELAY}
Returned Format:
[:MEASure:COMPare]
<
measurement
>, <upperjmit>,
<lower_limit>
<NL>
Example:
DIM Cmp$[50]
OUTPUT
707;"MEASure:COMPare?
VPP"
ENTER 707;
Cmp$
PRINT
Cmp$
For example,
the sequence required to do
a
limit
test
on frequency
is:
OUTPUT 707;":MEASURE:FREO"
!Select
measurement
OUTPUT
707;":MEASURE:COMPARE FREO,1000HZ,10HZ" 'Set measurement limits
OUTPUT 707;":MEASURE:LlMITTEST MEASURE" "Start
test
Note
The only way to
see
if
a
limit
test
failure
has
occurred over
the
bus
is
by checking
if
bit 3 of
the status
byte
is set
to
a
1.
HP 54501A
Programming
Measure Subsystem
14-13