The long press action on Delta HMIs can be either enabled (default), completely disabled or password protected.

This setting can be found in the DIAScreen project → General → Configuration → Default → System Key Mode. It features the following options:

• Uncheck Password (default) – The system menu can be accessed without requiring a password
• Enable Password Check – The system menu can be accessed, but it is password protected.
• Disable – The system menu will be disabled and can be accessed only by using a System Menu Button Element.