No Access

What does F010 mean?

This fault indicates that the system attempted to access a resource or perform an operation for which it lacks authorization. Similar to privilege errors, this prevents unauthorized interaction with the controller or its data.

• User or application attempting to access a protected area without credentials.
• Security permissions configured to deny access to the specific resource.
• Network firewall blocking access to the controller.

Click steps to track your progress.

1. 1

   Verify the current user account's credentials and assigned security roles or groups, ensuring it has the necessary privileges for the attempted operation.

2. 2

   Inspect the PLC's security configuration within Logix Designer or RSLogix 500 (Controller Properties -> Security) to confirm access levels for the resource.

3. 3

   Check the project file for any embedded security settings, password protection, or project locking mechanisms that may be active.

4. 4

   Confirm that the communication path (e.g., RSLinx Classic driver, Ethernet configuration) is correctly established and not subject to network security restrictions.