Ni max and power supply

[Suhaib@961]

Hello everyone,

I am a new LabVIEW programmer, I need to send commands to supply a constant voltage or current to a power supply (Sm30-100 from Delta electronica). Unfortunately, I didn't find a suitable driver for this instrument or any example.

Is it possible to simulate this instrument in NI Max? and what else do I need to achieve that?

[billko]

In spite of the manual saying it's easy to program, it doesn't really seem that way at all.  If you can use a different power supply - one that uses SCPI to communicate - that would be a LOT easier.

[Suhaib@961]

thanks for the reply,

I totally agree, The risk of having an error is high. Unfortunately, I am afraid that I have to work with this power supply.

But cant I send These SCPI commands through Ni Max program? 

[GerdW · Accepted solution]

Hi Suhaib,

that SM30 is a discontinued product from Delta, they offer an replacement (see here). But they still offer service until 2027…

The manual they offer on that website doesn't provide a list of commands for RS232/GPIB remote control. You will need to contact that DeltaElektronika service to provide you with such a "programming manual" for that old device!

Once you know the commands for your device you can send them through MAX or LabVIEW…

[billko]

Seems like you "program" this thing by using a scaled voltage???  So you have to have a power supply to program the power supply?  😉  And you need a DAQ if you want to record the output values.

It's probably cheaper to buy another power supply.  One that utilizes some kind of programming language.

[Suhaib@961]

yes, that's correct, the power supply has an analog programming connector. I used an Arduino to supply 0-5v signals to check if I can change the voltage using a potentiometer and it worked. I need to set Voltage/Current and collect those readings.

I think I can manage to do that using DAQmx. 

thanks for your support