Know Your Safety System Will Perform When Called Upon
The DeltaV SIS process safety system extends flexibility to fit your requirements by offering multiple types of logic solver hardware: the Smart Logic Solver (SLS) and the CHARMs Smart Logic Solver (CSLS). Both logic solvers provide modular, distributed and scalable safety solutions.
The SLS provides software configurable I/O while the CSLSs provides individually interchangeable channels according to your device signal type, so late project changes won’t hold up schedules.
CHARMs Smart Logic Solvers (CSLS)
The DeltaV SIS process safety system has a uniquely scalable modular architecture that is based on the CHARMs Smart Logic Solver (CSLS) and the unprecedented flexibility and ease of use of the Emerson Electronic Marshalling solution. Each CSLS provides I/O processing, Safety Integrity Level 3-capable logic solving, and diagnostics in a single logic solver.
Frequently Asked Questions
DeltaV SIS offers two logic solver hardware options: the Smart Logic Solver (SLS1508) and the CHARMs Smart Logic Solver (CSLS). Both provide modular, distributed, and scalable safety solutions. The CSLS uses LS CHARMs I/O that help accommodate late design changes and increase project flexibility.
The DeltaV CSLS supports individually configurable I/O channels and Electronic Marshalling technology, allowing users to adapt to changing project requirements without extensive rewiring or redesign. This flexibility eliminates cross wiring, simplifies implementation and future system modifications and expansions.
DeltaV SIS with Electronic Marshalling uses a modular and scalable architecture designed to support everything from smaller safety applications to large-scale emergency shutdown systems and fire and gas systems using LSN (local safety networks) and GSN (global safety networks) topologies.
Yes, both DeltaV SIS solutions are Safety Integrity Level (SIL) 3 capable, providing facilities with high-integrity safety instrumented functions. The hardware combines logic solving, diagnostics, and I/O processing to support functional safety requirements across critical industrial processes.
DeltaV SIS leverages intelligent device diagnostics and HART communication capabilities to identify potential field device issues before they lead to spurious trips or unexpected shutdowns. This proactive approach can improve process availability while maintaining safety integrity.
DeltaV SIS with Electronic Marshalling provides the foundation for a Smart SIS, helping simplify safety lifecycle management from design through operation and maintenance. When combined with solutions such as DeltaV AgileOps, it enables more efficient management of safety instruments, alarms, logic, and system assets. The result is reduced complexity, improved visibility, and easier compliance with functional safety standards throughout the life of the system.
