BK2831E

[hartzde]

Attached is my Initialize VI for the DMM.  It works fine.  I had a lot of trouble getting the DMM functions to work.  My Configure VI is attached also.  The meter seems to be very slow and needs large delays.

[Dennis_Knutson]

Instead of images, you should post the actual VIs. Images should be posted as snippets. Look at how to create snippets on the help.

[Muffin]

I have this same code for the initialization, but it is still not working.  See the NI trace I acquired.  Any thoughts?

I did try to use the "Instr Assist" blocks and they seem to sort of work.  They lock the device though and it makes it very hard to debug.

Here is my code:

[Muffin]

I notice that the instrument assist seems to use the same viOpen calls that NIMAX and the Agilent IO tool use.  Am I useing the wrong category in my VI such that I am getting the VISA calls instead?

This is the trace from the instrument assist box.

Issue I have with this is that there is no way to insert delays between commands.  The DMM seems to have issues with the commands coming to fast.  If I split it up into different blocks, the block seem to flush the IO when they are called/leave so you loose your data.

[Dennis_Knutson]

The instrument assistant, MAX, the agilent tool, and your VI all use VISA.

Setting the termination character to none is just wrong. Why do you have that?

[hartzde]

I agree.  You have to have the termination character enabled and set to 0xA for this meter.

[Muffin]

So why do they show up differently in the NI IO trace tool?

Not sure what you mean about the termination character.  It is on and set to xA for a LF.

[Dennis_Knutson]

You have a property node that sets end in and end out to none. Why?

[Muffin]

I got it working.  I failed to see somehow my data bits got set to 7 instead of 8.  Also the setting of the buffer size seemed to be messing things up so I just removed that.  thanks all.  The DMM is very picky, I have had to put a bunch of time delays in or it errors out.

[twolfe13]

Would it be possible to share the actual VI that was created for this DMM? I'm trying to connect mine to LabVIEW and am in way above my head. The pictures are great, but ideally I'd love to be able to grab the VI you developed and run with it.