The error is defined by LV as: "Error -1073807343 occurred at an unidentified location
Possible reason(s): VISA: (Hex 0xBFFF0011) Insufficient location information or the device or resource is not present in the system." It looks as though the name of the session is okay, because it should look like => GPIB0::9::INSTR Are you using this name to open the VISA session or to initialize the instrument? Once the session is opened, you should get a name like: GPIB0::9::INST followed by the session number.. Unfortunately I don't have a true example of the number, but it looks like... GPIB0::9::INST:1 I'm not sure if the column is in front of the 1. Hope this helps.. JLV
