Posted 29 March I saved a project I am working on, had to conver it before I saved? Came back to make edits and when I went to add a new rung it come up with this error? Any fixes? Many thanks, Sean Share this post Link to post Share on other sites
Posted 29 March (edited) You are using a device which does not exist i the PLC. what did you change ? check the Device Tab in the PLC parameters to see your settings. Did you try to add an ST0 for instance ? By Default these are set to 0 in a system Q Edited 29 March by Gambit 1 person likes this Share this post Link to post Share on other sites
