V.logic Product Sheet

Listing Results V.logic Product Sheet

Frequently Asked Questions

• How are logic solvers hosted on a DeltaV controller?

  Local Logic Solvers are hosted by the same DeltaV controller and remote Logic Solvers are hosted by a different DeltaV controller. Logic Solvers are powered by a 24 V DC power supply that is separate from the power supply that drives the DeltaV controller and I/O. Logic Solvers install in odd-numbered slots (1,3,5,7) on the 8-wide carrier.

• How many channels does a SLS 1508 logic solver have?

  Each SLS 1508 Logic Solver has dual CPUs and sixteen channels of I/O built into it. This means that no additional processors will ever be required to expand the system, since each Logic Solver contains its own CPUs. Scan rate and memory usage are constant and independent of system size.

• Which is the first smart logic solver for SIS?

  Research shows that over 85% of all faults in SIS applications occur in field instruments and final control elements. The DeltaV SIS process safety system has the first smart logic solver. It communicates with intelligent field devices using the HART protocol to diagnose faults before they cause spurious trips.

• What can DeltaV SIS logic solver be used for?

  Approved for use up to SIL 3 process safety applications as defined by IEC 61508. The DeltaV SIS logic solver, built for digital communications with safety sensors and final control elements, uses the power of predictive field intelligence to increase the overall reliability of the entire SIF.

• Is the DeltaV SIS part of the Smart SIS system?

  The DeltaV SIS™process safety system, part of Emerson’s smart SIS, ushers in the next generation of Safety Instrumented Systems (SIS). This smart SIS approach uses the power of predictive field intelligence to increase the availability of the entire safety instrumented function.

• What does Emerson's DeltaV Safety Instrumented System do?

  Emerson’s safety instrumented systems - whether standalone or integrated with a control system - helps you reliably protect your assets and improve your process availability. As an integrated control and safety system, DeltaV provides a cohesive engineering, maintenance and operations environment.

• How is DeltaV SIS based on IEC 61511?

  The DeltaV SIS system design was based on IEC 61511 safety instrumented function (SIF) concept, where every logic solver is a container for a small number of SIFs. Unlike other system architectures, the logic solver is no longer a single point of failure for the entire process.