What is the PXI system equivalent of VXI Plug & Play standard called ?

[x2]

What is the PXI system equivalent of VISA and VXI Plug & Play standard called ?

[rtamblin]

There is not necessarily an equivalent, as PXI and VXI systems work in different ways. With VXI, the configuration registers contain all the necessry device information, and when RESMAN is run on a VXI system, it uses this information to allocate resources to the device and get the system set up properly. PXI is built off of PCI, so when a PXI board is introduced to a system, Windows sets up resources for the card based on information contained on the card, but it is still not necessarily usable. The card must be matched up to an .inf file, linking the card to a driver, in order for the card to be usable under Windows.

Ryan Tamblin
Applications Engineer
National Instruments

[Dan_Mondrik]

The PXI Systems Alliance has recently adopted VISA as the I/O driver API, so it's not just the equivalent, it's the same thing! A VISA implementation for PXI will soon be required on all PXI controllers, much as VISA is required for all VXI controllers today.

Note that its use, however, is not required. You can write a Windows driver for a PXI card and be 100% interoperable. So it's not in the exact same situation as VXI was.

Dan Mondrik
National Instruments