The Logix SIS is a safety instrumented system (SIS) offers SIL 2 and SIL 3 certifications for enhanced process and hybrid safety. Logix SIS provides all components of a safety instrumented system including the process logic solver and I/O. The system is engineered to provide high availability with Rockwell Automation hardware, leveraging the latest 1756 controller, Flex 5000 I/O platform and Studio 5000 Logix Designer application. Key features include a reduced engineering time and the ability to upgrade the system without planned downtime.