Controlling the Output

Important The power supply responds simultaneously to both digital and analog programming inputs. If it is receiving an input over the GPIB and a corresponding input from the front panel (and/or from the analog programming port), the power supply output will be the algebraic sum of the inputs.

Programming Voltage and Current

The following statements program both voltage and current and return the actual output from the sense terminals:

OUTP OFF

Disable the output.

VOLT 4.5;CURR 255

Program the voltage and current.

VOLT?;CURR?

Read back the programmed levels.

OUTP ON

Enable the output.

MEAS:VOLT?;MEAS:CURR?

Read back the outputs from the sense terminals.

Programming Protection Circuits

This example programs the voltage and current, programs an overvoltage protection value, and turns on the overcurrent protection. It then reads back all the programmed values.

VOLT:LEV 4.5;PROT 4.75

Program the voltage and overvoltage protection.

CURR:LEV 255;PROT:STAT ON

Program the current and overcurrent protection.

VOLT:LEV?;PROT?;:CURR:LEV?;PROT:STAT?

Read back the programmed values.

Note the required use of the optional LEVel header in the above example (see "The Effect of Optional Headers", given previously).

Changing Outputs by Trigger

If you do not program pending triggered levels, they default to the programmed (immediate) output levels. The following statements shows some basic trigger commands.

OUTP OFF

Disable the output.

VOLT:LEV:IMM 2.2;TRIG 2.5

Program the (immediate) voltage level to 2.2V and the pending

CURR:LEV:IMM I5O;TRIG 250

triggered level to 2.5 V.

Program the (immediate) current level to 150 A and the pending

VOLT:LEV:IMM?;TRIG?;:CURR:LEV:IMM?;TRIG?

triggered level to 250 A.

Check all the programmed values.

OUTP ON

Enable the output.

MEAS:VOLT?;CURR?

Read back the immediate levels from the sense terminals.

INTIT;TRIG

Arm the trigger circuit and send a single trigger.

INIT;*TRG

Same as above, except using a common command.

MEAS:VOLT?;CURR?

Read back the triggered levels from the sense terminals.

If you need to send two or more triggers, program the trigger circuit for continuous arming.

OUTP OFF

Disable the output.

VOLT:LEV:IMM 5.O;TRIG 2.5

Program the (immediate) voltage level to 5 V and the pending

INTIT:CONT ON

triggered level to 2.5 V.

Program the trigger circuit for continuous arming.

OUTP ON

Enable the output to 5 V.

TRIG

Trigger the output voltage to 2.5 V.

VOLT:TRIG 5;:TRIG

Set the pending trigger level to 5 V and trigger the output voltage

INTIT:CONT OFF

back to 5 V.

Remove the continuous trigger arming.

16 Remote Programming

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Agilent Technologies 664xA, 665xA, 667xA, 669xA, 668xA manual Controlling the Output

668xA, 669xA, 667xA, 664xA, 665xA specifications

Agilent Technologies has long been a pioneer in the production of high-performance electronic test and measurement instruments, particularly in the field of power sources. Among its notable offerings are the Agilent 667xA, 669xA, 665xA, 664xA, and 668xA series of power supplies. These instruments are designed to provide stable, reliable power for a variety of applications, including electronic testing, industrial processes, and research laboratories.

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