Normally, Measurement & Automation Explorer (MAX) will automatically assign COM1, COM2,
as aliases to ASRL1::INSTR, ASRL2::INSTR,
respectively. These ports will then show up in MAX and in the VISA Resource Name Control as COM1, COM2,
. If these VISA aliases have been modified by another user, each port under "Devices and Interfaces" will show up with its new alias followed by the binding port in parentheses. In comparison, the VISA Resource Name Control in LabVIEW displays only the VISA alias. For example, the first serial port may show up as ASRL1(COM1)
in MAX, but would show as ASRL1
In order to change the VISA alias, simply right-click on the port in MAX under Devices and Interfaces»Ports
and select Rename.
You can also change the alias by opening the General
tab where you can rename the port bound to COM1 as "COM1". It will now read as COM1
in both MAX and LabVIEW. If you rename it as MyPort,
it will show up as MyPort
in MAX and as MyPort
in LabVIEW. Once you have renamed the port, you must save the alias in order for it to show up in LabVIEW.
You can also set a VISA alias for your instrument in MAX. First, double-click Devices and Interfaces
to expand it, right-click the entry for your interface, and select Scan for Instruments
from the shortcut menu. Second, right-click your instrument and select VISA Properties
from the shortcut menu to set the VISA alias for your instrument.