How do I use VISA to perform GET (Group Execute Trigger) to three DMMs?

Hi,
My systems have about 4 GPIB instruments connecting to my computer via Agilent GPIB-USB Interface card. I have to use VISA to communicate with the interface and instrument. I wish I can use NI488,.2 but it does not seem to work with Agilent card. In NI488.2, I could easily send a command such as X? (to read value from Agilent 3458A) to 3 DMMS at once using sendlist module. However, I do not know how to do similar parallel poll in VISA. Can anyone help? There are three FLUKE8505A on the system. My goal is to read the three measured values triggered simultaneously on these three FLUKE DMMs.
Sincerely yours,
Rose

Hi Rose,
The How Do I See My Agilent 82357A GPIB-USB Interface in MAX/LabVIEW? knowledgebase article explains how to use an Agilent USB-GPIB with NI-VISA. Using the NI-VISA driver will require you install the Agilent I/O Libraries 14.0 and uninstall the Agilent VISA driver. Once you get your Agilent GPIB-USB device recognized in MAX, you should be able to control the instruments using LabVIEW.
Regards,
Andy L.
Applications Engineer
National Instruments

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