Command: Delete (boot application)
Function:The command unloads the current application and deletes the boot application on the safety controller. The deletion of the boot application is possible only after having already authorized oneself with the admin password. An existing online connection to the safety controller is terminated after confirmation by the user (see illustration).
Call: Delete button on the Safety Online Information tab of the safety controller editor
Requirement: The command can only be activated if the Update command of the Safety Online Information tab has been executed at least once and BA information was available on the controller.
The user always gets a feedback message as to whether the command has been successfully executed or not.
Caution
If the Delete command of the boot application is not fully executed, a hazard may arise in the plant after restarting because it still starts up with the old application.
The user must wait for the message informing him whether the command was successfully executed. If this does not come, the controller is to be treated as if the boot application can start again after the restart.
Tip
Using the display on the Safety Online Information tab of the safety controller, which shows the application information for the application on the controller, the user can additionally ascertain that there is no longer any boot application on the controller, i.e. that the command was therefore successfully executed.
Select the safety controller in the device tree (project tree)
Activate the Edit object command in the context menu
Click the Refresh button.
Check that no boot application exists any longer.
Tip
The admin password is not deleted when the Delete command is executed. The admin password can only be deleted via Reset origin of the boot application.