Configure NI-VISA to operate with an HP/Agilent GPIB-VXI board
To configure NI-VISA to operate with a non-National Instruments GPIB-VXI board, such as the HP1406, you need to add this device to your system manually in MAX. You can do this by right-clicking on Devices and Interfaces in the configuration tree and selecting Create New.... In the wizard, follow the instructions for entering the GPIB address (primary and secondary), VXI logical address, GPIB controller number (which GPIB plug-in board the GPIB-VXI/C is connected to), and the GPIB-VXI number. The GPIB-VXI board number should be unique in your system.
You should also make sure that the appropriate GPIB-VXI module for VISA is installed in your system. Contact the vendor of your GPIB-VXI controller for more information.