Safety Signature with Safety Changes

When the safety controller has a safety signature (generated in the Safety Signature ID from the Safety Controller Profile),

FactoryTalk® Design Studio™

checks if you have made any safety changes to the offline project since the previous deployment

When you make safety changes and the safety controller has a safety signature, a warning shows that requires you to delete the safety signature. You can either acknowledge the warning, deploy the safety application (which deletes the safety signature), then regenerate the safety signature.