Rockwell Automation Logix5000 Controllers Security Programming Manual - Manual (Page 52)

Chapter 5 Securing a ControlLogix controller
The Password Status for the controller changes to indicate a Password
exists in the controller, but the controller is not secured yet.
6. Click Secure Controller.
7. In the Secure Controller dialog box, in the Password box, type the
password for the controller and then click Secure.
8. If the controller has nonvolatile memory installed, you can select the Save
to Nonvolatile Memory after controller is secured check box to save the
security state of the controller to nonvolatile memory. Refer to the Logix
Designer application help for additional information on using nonvolatile
memory.
52 Rockwell Automation Publication 1756-PM016G-EN-P - October 2014