Hi, I try to read data from a simple multimeter with USB interface. When I use the Instrument assistant the data gets correctly displayed during the 'read and parse' step (see attached screenshot 1), but neither the finished VI created by the assistant nor the visa test panel succeeds to read the data (screenshots attached). The error is always: "The resource is valid, but VISA cannot surrently access it." (Even though NI-trace shows a viClose as last command of the assistant.)
Could someone please help me? The multimeter has a very simple serial interface: it does not 'listen' to anything. It just sends the data 2 times per A/D cycle to the serial interface as soon as the function is hardware activated. I use a FI2803MT, but, if I understood well, many other multimeters send their data the same way. I did not suceed to mimick the instr assisant commands to get the data.
Thanks a lot for your help