How to disable units in agilent 415x?

[dilge]

I am using labview to control hp4155b, and i downloaded its driver so i thought things would get easier. But I dont know how to disable some units, I dont know which function I should use and there are no explanations to those functions or what kind of a sequence I should put together. Does anyone know the solution to this?

[Albert.Geven]

Can you give an example of a vi in which the units are used?

[dilge]

initialize--config chan smu sweep--config chan smu sweep--config sweep primary sour--config sweep const sour--op download trace--close

Im trying to do a voltage sweep and measure current for a basic diode

[Albert.Geven]

As far as I can see the units are the channels of the 415x modules in the chassis.

e.g. if you look in the example ( I could not load your eaxmple  I still have lv2017) 

Examples\Agilent 415X Series Dual Source Sweep Display.vi you see a lot of units displayed.

So it depends on the configuration of your agilent device

[cstorey · Accepted solution]

So what errors do you get?  Units in this case refer the SMUs (source measure units) and are required to identify which channels the device is connected to.

I would bet that the names you've assigned don't conform to the format allowed by the Hp4155.  They need to start with a letter and be less than 8 characters, with no special chars allowed.  Very restictive early DOS format.  Don't forget these instruments date back to 1994 and were designed for 3' floppies!

I would avoid the double to dynamic to build graph and just wire your arrays to a bundle then into the graph.

Here's some old messy code for you to try... At least I refreshed the interface last year!

[dilge]

Which instrument driver have you used? I have AG415x and HP415x(which is waaay too old) but your subVIs seem to be none of these. However, I will try to replace them but there are no subVIs in these drivers such as display on-off and disable-all, so I will get rid of those. There are also another subVIs which are not related to the instrument driver and which are called "filename_formatter" and "remove_XY_flyback" that I dont have in my library, what do they do actually?

My code simply doesnt recognize SMUs and does nothing and I had named the traces according to the format. So I don't know exactly, does the order of the sequence matter except for download trace,initialize and close? If so, maybe I'm douing something wrong there.

Thank you very much for the help!

[cstorey]

Not at work this am, but will supply those missing VIs later today.  I believe its the AG415x driver...but I must have added VIs that were needed to control other parts of the 4155C I have.

Have you made sure the 4155 is set to GPIB and SCPI?  Use the menus  System Config I think.

Craig

[dilge]

I have succeeded with the old driver, which is something like the following, i still dont understand why the previous code didnt work though...THANK YOU VERY MUCH FOR THE HELP 🙂