Controller System

  • Safety Function Definition

  • Are you using only the components listed in
    SIL 3-Certified GuardLogix Components on page 14 and on the http://www.rockwellautomation.com/
    products/certification/safety/ site, with the corresponding firmware release?

  • Have you calculated the system’s safety response time for each safety chain?

  • Does the system’s response time include both the user-defined safety task program watchdog (software watchdog) time and the safety task rate/period?

  • Is the system response time in proper relation to the process tolerance time?

  • Have probability (PFD/PFH) values been calculated according to the system’s configuration?

  • Have you performed all appropriate functional verification tests?

  • Have you determined how your system will handle faults?

  • Is each CIP safety device configured with the correct SNN?

  • Have you generated a safety task signature?

  • Have you uploaded and recorded the safety task signature for future comparison?

  • Following a download, have you verified that the safety task signature in the controller matches the recorded safety task signature?

  • Do you have an alternate mechanism in place to preserve the safety integrity of the system when making online edits?

  • Have you taken into consideration the checklists for using SIL inputs and outputs listed on pages 89 and 90?

  • Author

  • Date

  • Checked

  • Date

  • Approved

  • Date

Input Checklist for GuardLogix System

  • For programming or startup, an individual checklist can be filled in for every single SIL input channel in a system. This is the only way to make sure that the requirements are fully and clearly implemented. This checklist can also be used as documentation on the connection of external wiring to the application program

  • Safety Function Definition

  • SIL Input Channels

  • Have you followed installation instructions and precautions to conform to applicable safety standards?

  • Have you performed functional verification tests on the system and modules?

  • Are control, diagnostics, and alarming functions performed in sequence in application logic?

  • Have you uploaded and compared the configuration of each module to the configuration sent by configuration tool?

  • Are modules wired in compliance with PLe/Cat. 4 according to ISO 13849-1?(1)

  • (1) For information on wiring your CIP Safety I/O module, refer to the product documentation for your specific module.

  • Have you verified that the electrical specifications of the sensor and input are compatible?

  • Author

  • Date

  • Checked

  • Date

  • Approved

  • Date

Checklist for Safety Outputs

  • For programming or startup, an individual requirement checklist must be filled in for every single SIL output channel in a system. This is the only way to make sure that the requirements are fully and clearly implemented. This checklist can also be used as documentation on the connection of external wiring to the application program.

  • Safety Function Definition

  • SIL Output Channels

  • Have you followed installation instructions and precautions to conform to applicable safety standards?

  • Have you performed functional verification tests on the modules?

  • Have you uploaded and compared the configuration of each module to the configuration sent by configuration tool?

  • Have you verified that test outputs are not used as safety outputs?

  • Are modules wired in compliance with PLe/Cat. 4 according to ISO 13849-1?(1)

  • (1) For information on wiring your CIP Safety I/O module, refer to the product documentation for your specific module.

  • Have you verified that the electrical specifications of the output and the actuator are compatible?

  • Author

  • Date

  • Checked

  • Date

  • Approved

  • Date

Checklist for GuardLogix Application Program Development

  • Use the following checklist to help maintain safety when creating or modifying a safety application program.

  • Project Definition

  • Are you using version 14, or version 16 or later of RSLogix 5000 software(1), the GuardLogix system programming software?

  • (1) RSLogix 5000 software, version 18 or later, supports 1768 Compact GuardLogix controllers.

  • Were the programming guidelines in Chapter 6 followed during creation of the safety application program?

  • Does the safety application program contain only relay ladder logic?

  • Does the safety application program contain only those instructions listed in Appendix A as suitable for safety application programming?

  • Does the safety application program clearly differentiate between safety and standard tags?

  • Are only safety tags used for safety routines?

  • Have you verified that safety routines do not attempt to read from or write to standard tags?

  • Have you verified that no safety tags are aliased to standard tags and vice versa?

  • Is each safety output tag correctly configured and connected to a physical output channel?

  • Have you verified that all mapped tags have been conditioned in safety application logic?

  • Have you defined the process parameters that are monitored by fault routines?

  • Have you sealed any safety Add-On Instructions with a instruction signature and recorded the safety instruction signature?

  • Has the program been reviewed by an independent safety reviewer (if required)?

  • Has the review been documented and signed?

  • Author

  • Date

  • Checked

  • Date

  • Approved

  • Date

The templates available in our Public Library have been created by our customers and employees to help get you started using SafetyCulture's solutions. The templates are intended to be used as hypothetical examples only and should not be used as a substitute for professional advice. You should seek your own professional advice to determine if the use of a template is permissible in your workplace or jurisdiction. Any ratings or scores displayed in our Public Library have not been verified by SafetyCulture for accuracy. Users of our platform may provide a rating or score that is incorrect or misleading. You should independently determine whether the template is suitable for your circumstances. You can use our Public Library to search based on criteria such as industry and subject matter. Search results are based on their relevance to your search and other criteria. We may feature checklists based on subject matters we think may be of interest to our customers.