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Chapter 4 Remote Interface Reference

Using the APPLy Command

The APPLy command provides the most straightforward method to program the

power supply over the remote interface. You can select the specific output, output

voltage, and output current all in one command.

APPLy

{P6V | P25V | N25V}[,{<voltage>| DEF | MIN | MAX}[,{<current>| DEF | MIN | MAX}]]

This command is combination of INSTrument:SELect, [SOURce:] VOLTage,

and [SOURce:]CURRent commands. The values of voltage and the current of the

specified output are changed as soon as the command is executed.

You can identify each output by the output name (P6V, P25V or N25V) as described

in Table 4-1. For the voltage and current parameters of the APPLy command, the

ranges depend on the output currently selected. You can substitute “MINimum”,

“MAXimum”, or “DEFault” in place of a specific value for the voltage and current

parameters. MIN selects the lowest voltage and current values allowed for the

selected output. MAX selects the highest voltage and current values allowed. The

default voltage values are 0 volts for all outputs. The default current values are 5

A for +6V output and 1 A for ±25V outputs. The default voltage and current values

are exactly the same as the *RST values. See Table 4-1 for details of parameters.

If you specify only one value for the parameter, the power supply regards it as voltage

setting value. If you do not specify any value for the parameter, the APPLy command

only selects the output specified and acts as the INSTrument command.

APPLy? [{P6V | P25V | N25V}]

This command queries the power supply's present voltage and current values for each

output and returns a quoted string. The voltage and current are returned in sequence

as shown in the sample string below (the quotation marks are returned as part of the

string). If any output identifier is not specified, the voltage and the current of the

currently selected output are returned.

"5.000000,1.000000"

In the above string, the first number 5.000000 is the voltage limit value and the second

number 1.000000 is the current limit value for the specified output.

Agilent Technologies E3631A User Manual

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