Posted 22 Feb 2018 Hi, there! I had got GX-Developer Ver.8, which is very different from the plc programs that I have learned before. I have read many tutorials and watch it but I still don't know how to start ladder logic test. Many other people simply click on 'start or end ladder logic test' but mine was greyed. Anyone has solution? Or I just missed a couple steps of simulation? Though it is very basic problem, I will put a deep gratitude for your reply. Share this post Link to post Share on other sites
Posted 22 Feb 2018 It's a separate program that needs to be installed. The greyed out button will then be blue. Share this post Link to post Share on other sites
Posted 13 Mar 2018 (edited) You need to install 'GX-Simulator' Edited 13 Mar 2018 by collinsd70 Share this post Link to post Share on other sites
