Use the backup/restore mechanism integrated in CODESYS to be prepared for unforeseen controller breakdowns. Open the device dialog of the connected controller by double-clicking on the device in the project tree and switch to the category "Backup and Restore". In the tab "Backup" you can read out the application information of the controller, select the desired scope and save it in a file. In the tab "Restore" you can open stored backup files, write them to the controller and in case of an...
Create functions (FUN) or function blocks (FB) according to IEC 61131-3 3rd Edition, to which you transfer arrays with variable lengths. Declare a VAR_IN_OUT with the star operator "*" in FUN/FB and read out the transferred array boundaries with the global functions "LOWER_BOUND" and "UPPER_BOUND". FUN/FB created in this way can be called and used with arrays of different lengths.
The CODESYS Development System displays a maximum of 1000 fields of arrays in the online view in the declaration part. If you use larger arrays, you can freely select the area of the 1000 displayed fields by double-clicking on the array.
In the LD editor, drag a coil into the left part of the network to make a contact out of it. Or drag a contact to the right to make it a coil.
F1: Online Help: With Internet connection: Display in browser (version and language freely selectable). Without Internet connection: Display in the integrated help tool (for the specific version of the tool).
F2: Input help for the simplified declaration of variables, instances, arrays etc. or their editing
F4: Step-by-step jumping (from top to bottom) of the messages in the message window, simultaneously direct jumping to referenced code positions
F5: Start execution of the application
Under Project/Project Settings in the category "Security" you will find settings for project signing and encryption. Make sure, however, that you secure your password, dongle or certificate against loss in order not to lose access to the project.