Posted 28 Oct 2015 Hi everyone. I'm new at Mitsubishi Q series. I can make a connection between PC and PLC through ethernet and read/write from/to registers. When I try to connect second PC to PLC I can't do it and get error. How can I set Network parameters of QJ71E71 module to communicate multiple PCs to PLC? Thanks. Share this post Link to post Share on other sites
Posted 28 Oct 2015 Are you connecting TCP or UDP? How many melsoft connection have been defined in the port parameters of the ethernet card? What are your transfer setup settings? Share this post Link to post Share on other sites
Posted 29 Oct 2015 I use TCP protocol. How can I access port parameters? Share this post Link to post Share on other sites
Posted 29 Oct 2015 These are the open settings in ethernet parameters. Share this post Link to post Share on other sites
Posted 29 Oct 2015 How can I set Open system, Fixed buffer, Fixed buffer communication procedure, Pairin open, Existence confirmation, Host station Port No., Transmission target device IP&Port No. options? I want connect to PLC from both PCs and read/write to it at the same time. QJ71E71's IP address - 192.168.1.10 PC1 - 192.168.1.11 PC2 - 192.168.1.12 I read about terms which I highlighted above from QJ71E71 manual but I can't understand these well. Where can I find useful infos about these terms? Share this post Link to post Share on other sites
Posted 29 Oct 2015 Can you post your port settings you have now set for the first PC. You should copy those and set a new port number. unless you are using Mitsubishi Software on the PC than you only need to define a Melsoft connection. Share this post Link to post Share on other sites
Posted 29 Oct 2015 Which numbers of ports should I select. Are 1020, 1021 exact ports or I can use any ports? By the way I use MX Component and VS2010 on both PC. Share this post Link to post Share on other sites
Posted 29 Oct 2015 (edited) MX components is mitsubishi software just add a melsoft port Edited 29 Oct 2015 by Gambit Share this post Link to post Share on other sites