marcin_wgd Posted January 12, 2016 Report Share Posted January 12, 2016 Hi evrybody I have problem with my Jazz PLC (JZ20-T18) If i plug usb conector my computer recognize "Unknow device" I try to install driver from U90, but no effect I also turn off UAC and install driver as admin I don't now where is the problem Can somebody help ? Quote Link to comment Share on other sites More sharing options...
R.Mozes Posted January 12, 2016 Report Share Posted January 12, 2016 Hello Marcin, Which Windows version is installed on your PC? Quote Link to comment Share on other sites More sharing options...
mk2ltw8 Posted January 12, 2016 Report Share Posted January 12, 2016 I am having a similar problem. I have the correct COM port selected. I was able to update the OS from the Controller>Operating System menu but cannot download my project. When I go to Controller>M90 OPLC Settings to verify, I get a "Communications could not be established..." error. I am using a USB-to-RS232 adapter (COM8) and Windows 7. Quote Link to comment Share on other sites More sharing options...
marcin_wgd Posted January 14, 2016 Author Report Share Posted January 14, 2016 I have Win 7, the UAC is on lowest position Quote Link to comment Share on other sites More sharing options...
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