Accessing NI-4071 remotely in RT

[Fruss]

Hi,

I have a question about 4071 dmm installed in a PXI-RT chassis.

I'd like to access to this NI instrument from my host PC as if it would be installed locally.

I mean, with a non NI-instrument is very easy, I should just enable the VISA server in the PXI, give access to my local PC, and use the remote visa address like:

visa://ip address/GPIB0::address::INSTR

If I try to do the same with the 4071 dmm, using this visa address: visa://ip address/PXI2::13::INSTR,  I cannot use the NI-DMM driver as far as know. Is this right?

Then, should I create a new driver with VISA functions in order to access remotely to the 4071 instrument? How, if you don't provide the VISA commands?

Is possible to access remotely to the 4071 instrument through NI-DMM driver? if so, which would be the remote instrument resource name?

Thank you very much!

[Christian Mergl]

Hey,

In general you can access every device in a PXI Chassis via VISA. I assume you didn't set the remote access under MAX. So just go to MAX expand Network Environment, open your PXI, then Software and under VISA go to the VISA Options Tab, select "Security" and add a "*".

Then Simply use the string you mentioned.

However almost every NI Modular Instrument (like a Scope or DMM) cannot be used remotely via it's driver.

You can use VISA to access it and read e.g. the Manufacturer Name or such common Tasks. 

Christian

[Fruss]

Hi Christian,

I did it, and I can use the VISA panel to get some standard parameters like manufacturer name and id, but what I need is to operate and measure with the 4071 dmm remotely.

I mean, I'd like to do the same I would do with NI-DMM, but remotely.

Is this possible?

Thank you!

[Christian Mergl]

Hey,

The only way would be to use VISA with Register Level Programming, but we don't support that for DMMs and don't offer any documentation.

So what you could do is to build a RT.vi which does all the measurements and communicats via Shared Variables, TCP/IP, .... with a Host.vi.

Christian

Message Edited by Christian_M on 10-21-2009 11:07 AM