Rockwell Automation Logix5000 Controllers Security Programming Manual - Manual (Page 9)

Chapter 1
Security
This chapter discusses security related features available in the Logix Designer
application.
In version 20 or later of the application, security enhancements provide:
• Security Server Validation—When enabled, and a user attempts to access a
secured controller or project file, the application makes sure that the user is
authorized by a FactoryTalk Directory trusted by that controller or project
file. For more information, refer to Securing a Logix Designer application
project file on page 14 .
• Change Detection—Two new Controller attributes were added:
ChangesToDetect and AuditValue. You can configure these attributes
programmatically or by using the Security tab found in the Controller
Properties dialog box. You can monitor the audit value from an HMI,
historian, remote controller, and from Logix Designer application. For more
information about Change Detection, see Logix5000 Controllers
Information and Status Programming Guide , publication 1756-PM015 .
• Restricted communications through trusted slots—When enabled,
ControlLogix controllers only accept communications through selected
slots. For more information about trusted slots, refer to Securing a Logix
Designer application project file on page 14 .
The Logix platform, version 18 or later, provides Data Access Control through
two new tag attributes: External Access and Constant. Together, these attributes
let you control access to tag data and help to safeguard tags by preventing
unwanted changes to their values. For more information about Data Access
Control, see the Logix5000 Controllers I/O and Tag Data Programming Guide ,
publication 1756-PM004 .
Introduction
Rockwell Automation Publication 1756-PM016G-EN-P - October 2014 9