Posted 25 Oct 2014 Hi All, I have problem about programming serial module Mitsubishi PLC using QJ71C24N. If I unconnect the cable from the module and connect again it show SIO error and the communication become lost or not sending data again. so i have to restart the PLC to make it normal again. Any other solution for solve this error without restart the PLC? Thanks Husanto Share this post Link to post Share on other sites
Posted 23 Mar 2015 Hi Husanto. I also have some problems with QJ71C24N, may you please post some pictures of your module? Thank you so much. Share this post Link to post Share on other sites