Privilege Error; Access Denied

What does F00B mean?

This error occurs when a user or process attempts to perform an operation for which it does not have the necessary security privileges. The system denies access to protect critical functions or data from unauthorized modification.

• User login credentials lack the required access level for the requested operation.
• Security settings on the controller prevent write access to specific parameters.
• Attempting to modify a protected system resource.

Click steps to track your progress.

1. 1

   Verify the user's login credentials and associated security privileges within the Rockwell Automation software (e.g., Studio 5000 Logix Designer) on the engineering workstation.

2. 2

   Check the PLC controller's security settings and user access control configuration (e.g., in Controller Properties) to ensure the attempted operation is permitted.

3. 3

   Inspect the network configuration and connectivity between the engineering workstation and the PLC to rule out communication issues affecting authentication.