HP E8402A, User And Service Manual, Page: 68 / 249

70 Programming the Enhanced Monitor Chapter 3
HISTory:POWer:MAXimum?
<
supply
>
HISTory:POWer:MAXimum? <supply> returns a single floating point number for the
maximum wattage measured by the Enhanced Monitor for the <supply> since either
manufacture of the mainframe or the most recent
HIST:RES:POW or
HIST:RES:ALL .
Parameters
Returned Data
Comments
•
The maximum wattage 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:POWer:CMAXimum?, HISTory: POWer:[HISTogram]?,
HISTory:RESet: POWer, HISTory:RESet[:ALL]
Name Type Range Default Description
< supply> enum P5, P12, N12, P24,
N24, N5PT2, N2,
TOTal none Selects the power supply for the
maximum wattage 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
-109 “Missing parameter” You must include the < supply> parameter.
-221 “Settings Conflict” The power supply doesn’t support power
measurements.
-224 “Illegal Parameter” The <supply> parameter was not correct.
-311 “Memory error” The historical data’s memory is not available.