how to write commands to ask about overcurrent or overvoktage

[Mo7mmed]

Hi,

I have HP 66000A DC power supply device and i send to it the voltage value and the current value but sometimes the voltage value or the current value over the load and the DC power supply device decrease the value depend on load.
So what is the command that i can send to device? And how to write it in labview?


And what is the command that i can send one value (voltage or current) and the device automatically give me another?

Thanks all

[Dennis_Knutson]

The exact query will be in the manual. I don't remember off-hand which function in the driver calls it. What functions have you tried? If it's not a driver function, just use one of the existing functions as a model and write a new function.

Sorry, but I don't understand what you want with your second question.

[Mo7mmed]

Hi dennis_knutson,

Thank You.

I didn't understand the manual in this point and i tried to do it but i couldn't.

I didn't use any driver in my program.

My second question i will give you example:

I need 2Am current so i will send to device 2Am and the voltage value i want it depend on the current value by this law I=V×R
I = 2 Am, R= constant and V=variable.

Thank you and I'm so sorry about my language.

[GerdW]

Hi Mo7,

I didn't understand the manual in this point and i tried to do it but i couldn't.

Then you should ask in HP / Agilent / Keysight forum, but not in the LabVIEW forum. Or just call the Keysight support to help you!

I need 2Am current so i will send to device 2Am and the voltage value i want it depend on the current value by this law I=V×R

What is "2Am"? I only know of "2mA"!

If it's a real power source it will adapt the voltage on it's own to supply your 2mA current request. If you need to set the voltage too you can calculate it on your own as you already know about Ohm's law. Btw. is the resistor REALLY constant?

[Dennis_Knutson]

Use the driver.

[Mo7mmed]

Hi GerdW,

I just ask about command and how to write this command in labview Ok?

Am=Ampere

The resister depend on the load we need test many boards in one day so i cant to do what you said.

I know i can send one value and the device put another value
But how to do it.

[GerdW]

Hi Mo7,

The resister depend on the load we need test many boards in one day so i cant to do what you said.

You wrote: "Resister is constant". When that's not the case you should not say so…

I just ask about command and how to write this command in labview Ok?

- You asked for the command. The answer is to be found in the manual of your device! Either read the manual, use the driver or ask the manufacturer…

- You said you already send values/commands to the device. So why do you ask again on how to send commands to your device?

[Mo7mmed]

Hi GerdW,

Do you know the command and how to write it??

[GerdW]

Hi Mo7,

yes, I know it. I also know how to write it.

See page 39 of the HP661xx programming manual, found on the website of your device manufacturer! I wonder why you need someone else to read the manual of your device…