Agilent Technologies E364 A Series, Руководство пользователя

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Chapter 4 Remote Interface Reference
Output Setting and Operation Commands
78
Output Setting and Operation Commands
This section describes low-level commands used to program the power supply.
Although the
APPLy
command provides the most straightforward method to
program the power supply, the low-level output setting commands give you
more flexibility to change the individual parameters.
CURRent{ <current> | MINimum | MAXimum | UP | DOWN}
Program the immediate current level of the power supply. The immediate level
is the current value of the output terminals.
The
CURRent
command changes the output of the power supply to the newly
programmed value regardless of the output range presently selected.
You can substitute ‘‘
MINimum
’’ or ‘‘
MAXimum
’’ in place of a specific value for
the current parameter.
MIN
selects the lowest current values of ‘‘0’’ amps.
MAX
selects the highest current values allowed for the selected range.
This command also increases or decreases the immediate current level using
the ‘‘
UP
’’ or ‘‘
DOWN
’’ parameter by a predetermined amount. The command
CURRent
:
STEP
sets the amount of increase or decrease. Notice that a new
increment setting will cause an execution error -222 (Data out of range) when
the maximum or the minimum rated current is exceeded.
CURRent? [MINimum | MAXimum]
Return the presently programmed current level of the power supply.
CURR? MAX
and
CURR? MIN
return the highest and lowest programmable
current levels for the selected range.
CURRent:STEP { <numeric value> | DEFault}
Set the step size for current programming with the
CURRent UP
and
CURRent
DOWN
commands. See the example in the next page.
To set the step size to the minimum resolution, set the step size to ‘‘
DEFault
’’.
The minimum resolution of the step size is approximately 0.052 mA (E3640A),
0.015 mA (E3641A), 0.095 mA (E3642A), 0.026 mA (E3643A), 0.152 mA
(E3644A), and 0.042 mA (E3645A), respectively. The
CURR:STEP? DEF
returns the minimum resolution of your instrument. The immediate current
level increases or decreases by the value of the step size. For example, the
output current will increase or decrease 10 mA if the step size is 0.01. At
*RST
,
the step size is the value of the minimum resolution.