Rockwell Automation Logix5000 Controllers Security Programming Manual - Manual (Page 42)

Chapter 4 Configuring source protection in the Logix Designer application
Routines or Add-On Instructions that are protected, but are not configured
as viewable, cannot be opened. The DayofWeek routine cannot be opened
on a system that does not have the key used to protect the routine. In the
example, the icon for the routine is unavailable, indicating the routine
cannot be opened.
Inactive icons are unavailable.
The MyValveAOI cannot be viewed on a system that does not contain the
source key used to protect the Add-On Instruction. This is because
MyValveAOI is protected, but not set to be viewable. The Add-On
Instruction is shown in the Controller Organizer, but the parameters and
local tags for the Add-On Instructions are not viewable on a system that
does not contain the source key used to protect it.
42 Rockwell Automation Publication 1756-PM016G-EN-P - October 2014