I connected my TB-2605 to my PXI-2503. Thanks to the Labview example "Switch-Scanning with a DMM-Handshaking", I can read my 4wire resistance and my generator output voltage individually. However, I can't figure out how to program the reading of 2 different types of data. That is, I would like to be able to read my resistance and my voltage on the same front panel, even if it is in two different graphs. In concrete terms, the only difference in the two programs that allow you to read either the resistance or the voltage is the type of measurement. So I tried to link in many different ways the readings, the scans, the initializations... But nothing works, there is always something that doesn't work. Maybe I'm on the wrong track since the beginning? Thank you in advance for your help.

Well with 5 second scan interval it certainly should be possible to do this in software. While (acquisitionActive) Configure DMM to pressure settings Switch Multiplexer to first Pressure channel Read Measurement Switch Multiplexer to second Pressure channel Read Measurement Configure DMM to humidity settings Switch Multiplexer to humidity channel Read Measurement Configure DMM to PT100 settings Switch Multiplexer to PT100 channel Read Measurement Display and optionally store somewhere all 4 values Wait until 5 seconds have elapsed relative to start of this sequence Repeat

Aah well, your PXI-2503 device is simply a multiplexer. Sorry! You will have to do considerably more work then. Basically your DMM can NOT be synchronized with the multiplexer to apply different channel configurations depending on which channel it currently addresses. That is simply not possible. You need the two to be able to communicate with each other somehow and that only works if both are specifically designed to do so, and that is only usually an option if both devices are from the same manufacturer AND are specifically designed to do so. Unless you can live with software scanning where you configure the DMM, then apply the multiplexer channel, take a measurement and rinse and repeat, doing everything in software, you are out of luck with this hardware setup. Do not expect sampling frequencies of more than a few Hz with this however.

LabVIEW

TB-2605, PXI-2503, how to read different Data-type?

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I think I understand what you mean, I tried to make two scan lists one after the other by putting them on single measures and looping through a good part of the program and I managed to get what I wanted. I thank you for your precious advice.