1756-RM001B-EN-P, Using ControlLogix in SIL2 ... - Tuv-fs.com

8-4 General Requirements for Application SoftwareForcingForcing must be disabled after system test and validation.SecurityThe user must define what measures are to be applied for theprotection against manipulation.In the ControlLogix system and in RSLogix 5000, protectionmechanisms are available that prevent unintentional or unauthorizedmodifications to the safety system:• The following tools may be employed for security reasons in aSIL2-certified ControlLogix application:– Logix CPU Security Tool– Source Protection Tool– RSI Security ServerEach of these tools offers different security features, includingpassword protection, at varying levels of granularity throughoutthe application. The description of these tools is too large inscope to list here. Users can contact their local RockwellAutomation representative for more information.• The controller keyswitch should be in the RUN position and thekey removed during normal operating conditions.• Operator options are set up per user login in the ControlLogixsystem.• The link between RSLogix 5000 and the ControlLogix system isnot permitted during normal SIL2 RUN operation.The requirements of the safety and application standards regardingthe protection against manipulations must be observed. Theauthorization of employees and the necessary protection measures arethe responsibility of the individuals starting the system.Publication 1756-RM001B-EN-P - October 2003