Posted 24 Oct 2016 When trying to connect to the PLC my software shows using a usb cable but I need to use the serial cable but it wont let me change it. What would cause this? Share this post Link to post Share on other sites
Posted 24 Oct 2016 What is the full part number of the PLC? What options do you get for Network Type? Share this post Link to post Share on other sites
Posted 24 Oct 2016 Its actually my software. It gives me two options of usb or serial connection and we change back and forth all the time but for some reason usb is selected and it wont let me change to serial. Share this post Link to post Share on other sites
Posted 24 Oct 2016 Possibly something has disabled the serial port on your PC??? Check Device Manager to see if the com port shows up as working OK. Share this post Link to post Share on other sites
Posted 24 Oct 2016 (edited) I can make that happen if I select CP1E as the PLC type. Unless you are saying, SYSMAC WAY shows up but it does nothing when you click on it? Edited 24 Oct 2016 by IO_Rack Share this post Link to post Share on other sites