I have to measure 3 voltages at the same time, which do not have the same Ground. To achieve this I have to use 3 different data loggers. For the first voltage I'm using a Pico ADC-12, it works just fine. Our company has recently bought two Pico USB ADC-11 so I tried to use them for the other two measurements. I programmed some external subroutines in Testpoint like it's describes in the manual. The first Pico works on USB PP1 and I do get quite good results. The problems begin when I trie to open the second USB ADC-11 unit (Programmed for USB PP2). I don't recieve any signal and even the first USB module at the USB PP1-Port stops. I tried to get a signal with the PicoLog-Software, but there is no chance to get any signal from the module at the USB-PP2. Can i fix this with any software or do I have a hardware problem.
Best regards from Germany,