History:voltage[:Histogram]? <Supply>[,Min|Max] - HP E8402A User And Service Manual

HISTory:VOLTage[:HISTogram]? < supply >[,MIN|MAX]
Parameters
Returned Data
Comments
Error Conditions
Reset Condition
Related
Commands
86 Programming the Enhanced Monitor
HISTory:VOLTage[:HISTogram]?
for the <supply>. Ten values are returned for the amount of time the <supply>'s
voltage spent in ten different current ranges. Those voltage ranges can be queried
with the MIN and MAX optional parameter. The units of the time values returned
are HOURs by default, but can be changed with the
The units returned with the MIN or MAX parameters are millivolts.
Name Type
< supply > enum. P5, P12, N12, P24,
N24, N5PT2, N2,
P5STby
optional enum. MIN, MAX
parameter
Type
<range1> int32
<range2> int32
<range3> int32
<range4> int32
<range5> int32
<range6> int32
<range7> int32
<range8> int32
<range9> int32
<range10> int32
•
HIST: VOLTage? P5
•
HIST: VOLTage? P5,MAX
maximums for each voltage range for the 5 volt supply.
The following table lists the most common error conditions and causes. Error
numbers and corresponding messages can be found using
Number Message
-224 "Illegal Parameter"
-109 "Missing Parameter"
-311 "Memory error"
A *RST has no effect on the HISTory subsystem.
HISTory:VOLTage:MAXimum?, HISTory:VOLTage:CMINimum?,
HISTory:VOLTage:MINimum?, HISTory:RESet:VOLTage,
HISTory:UNITs[:TIME]
<supply> returns the voltage histogram data held
Range Default
none
none
Range Default
0-2147483647 none
0-2147483647 none
0-2147483647 none
0-2147483647 none
0-2147483647 none
0-2147483647 none
0-2147483647 none
0-2147483647 none
0-2147483647 none
0-2147483647 none
returns 10 time values, units set/queried by H
returns 10 voltages (in millivolts) representing the
Probable Cause
The <supply> or optional parameter not correct.
The <supply> parameter was omitted.
the historical data's memory is not available.
command.
HISTory:UNIT[:TIME]
Description
Selects the power supply whose
voltage histogram is desired.
Returns the maximums or
minimums volts (in millivolts).
Description
lowest voltage range.
second voltage range.
third voltage range.
fourth voltage range.
fifth voltage range.
sixth voltage range.
seventh voltage range.
eighth voltage range.
ninth voltage range.
highest voltage range.
IST:UNIT
SYSTem:ERRor?
Chapter 3
.
query.