“Create backup files”

: Each time the project is saved, CODESYS saves the ‎<project name>.backup‎ file in addition to the ‎<project name>.project‎ file. You can rename the backup file and open it in the programming system.

“Automatically save every … minutes”

: CODESYS automatically saves the project at the specified time intervals in a ‎<project name>.autosave‎ file, which you can reload after an irregular closing of the programming system.

When the project is closed or saved regularly, CODESYS deletes the ‎.autosave‎ file. In the case of an irregular program termination, CODESYS keeps the ‎.autosave‎ file. When you open a project for which there is an associated ‎.autosave‎ file, the “Auto Save Backup” dialog opens. In this dialog, you select whether to open the ‎.autosave‎ file or the version of the project which was last saved by the user.

“Save before build”

CODESYS automatically saves the project before each build operation.

“Create project recovery information”

Requirement: The “No protection” option is selected in the project settings in the “Security” category. This means that the project is not protected from unauthorized access and data manipulation, and there is no integrity check when the project is loaded.

: If a project crashes while being edited, then the next time the project is opened, a prompt opens to ask whether or not you want to restore the unsaved data and create a new project file. If you click “Yes”, then another dialog opens. In this dialog, you can select whether you want to open the restored project or open the project comparison. This project comparison displays the differences between the last saved project and the restored project.

Note: The project restore records every change on the hard disk when the change is made. If a power failure or hard disk error occurs on the hard disk during this operation, then the last change may be lost.

“Advanced Settings”

The “Advanced Settings” dialog opens.

“At startup”

List box for the startup screen of CODESYS:

“News page”

URL which is opened by means of the “Help  CODESYS Homepage” command

By default, ‎http://www.codesys.com/startpage‎ is specified here.

“Project Compression”

“Level”

Requirement: The “No protection” option is selected in the project settings in the “Security” category. This means that the project is not protected from unauthorized access and data manipulation, and there is no integrity check when the project is loaded.

List box for the compression level which is used when saving the project:

“Load Behavior”

Libraries and compile information are loaded in the background while you edit the project.