PXI instruments and visa server

[terrill]

I am using remote visa to try and control a NI-4070 PXI DMM in a PXI chassis. I have set everything up and have USed the VISA interactive Control. It finds the chassis and lists all gpib instruments connected and also all the com ports. It lists the PXI backplane (PXI0::1::BACKPLANE)but does not list any of the PXI instruments. All instruments show up in MAX on the PXI chassis. Is there something special I need to do to get the PXI instruments to be found? One note is all the instruments show up under different PXI instances in max on the PXI chassis. Ex. PXI4::11::INSTR (PXI-4070).

[terrill]

Another note is that if I open the VISA Interactive control on the PXI chassis it also only shows the backplane.

[Matt_S.]

That's because the DMM you are trying to target is not a VISA device. There are some options you have available. You can have a program that runs on the PXI chassis that controls that DMM (which would give you all of the advanced functionality of that DMM). You can also try to use the IVI drivers that ship with that DMM to control it with VISA (setting up this option is a bit more difficult and limits the functionality of the DMM).

Why are you trying to access this DMM remotely instead of controlling it directly via the pxi chassis?

[terrill]

I got VISA Interactive to show the PXI devices. There is an option that will do that. I still cannot connect to the DMM. I am using the NI DMM driver that I assume is IVI. I am trying to connect to it remotely because I do my development on my office pc and deploy on the PXI chassis (different licenses).  I am trying to prove hte entire program works and then only change the address of the instruments for deployment.