Is this a question or a comment? If it's a question, what is your question? Are you asking if you can provide a programmable value to VISA Open? If so, the answer is yes. Simply create the VISA resource name as a string and wire it to the "resource name" input. That input accepts a string. You can check the LabVIEW documentation for the proper format of the resource name. If you're using aliases like "COM1", "COM2", etc, these need to first be defined in the visaconf.ini file. This can be done via MAX (Measurement and Automation). Alternatively, you can have a simple VI that creates the proper resource name based on your alias (probably the better approach). So, for example, COM2 = ASRL2::INSTR.
