HP E8402A, User And Service Manual, Page: 65 / 249

Programming the Enhanced Monitor 67
Chapter 3
HISTory:CURRent:MAXimum?
<
supply
>
HISTory:CURRent:MAXimum? <supply> returns a single floating point number for
the maximum amperage that has occurred to the <supply> since manufacture of the
mainframe, or the most recent
HIST:RES:CURR or HIST:RES:ALL .
Parameters
Returned Data
Comments
•
The maximum amperage tracking can be zeroed by the HISTory:RESet
commands.
Error Conditions
The following table lists the most common error conditions and causes. Error
numbers and corresponding messages can be found using
SYSTem:ERRor? query.
Reset Condition
A *RST has no effect on the HISTory subsystem.
Related
Commands
HISTory:CURRent:CMAXimum?, HISTory:CURRent:[HISTogram]?,
HISTory:RESet:CURRent, HISTory:RESet[:ALL]
Name Type Range Default Description
< supply> enum P5, P12, N12, P24,
N24, N5PT2, N2 none Selects the power supply for the
maximum amperage request. P5 is
positive 5 Vdc supply, N12 is
negative 12 Vdc supply, etc.
Type Range Description
float Maximum current (in amperes) for specified power supply.
Number Message Probable Cause
-221 “Settings Conflict” The power supply doesn’t support current
measurements.
-224 “Illegal Parameter” The <supply> parameter was not correct.
-311 “Memory error” The historical data’s memory is not available.