SLS1508 DeltaV SIS™ Logic Solver

Redundancy 

The redundant SLS 1508 Logic Solver modules are connected to the field at the redundant terminal block. No control strategy configuration is required to take advantage of SLS 1508 Logic Solver redundancy, as the system’s auto-sense capability automatically recognizes the redundant pair of Logic Solvers. An integrity error alarm in a redundant SLS 1508 Logic Solver pair will notify the operator of a failure. Both SLS 1508  Logic Solvers in a redundant pair are monitored for integrity alarms at all times. Events that can cause integrity alarms include: Hardware failure within a SLS 1508 Logic Solver Communications failure between a SLS 1508 Logic Solver  and the SISNet Communications failure between a redundant pair of  SLS 1508 Logic Solvers Communications failure between a SLS 1508 Logic Solver  and an DeltaV Controller Removal of a SLS 1508 Logic Solver from the carrier

Related Products

DeltaV Workstations and Server Hardware 

DeltaV M-Series Traditional I/O 

DeltaV SIS Hardware Carriers 

DeltaV M-Series I/O Subsystem Horizontal Carriers 

DeltaV VerticalPlus I/O Subsystem Carrier DeltaV PK Controller 

DeltaV SIS with Electronic Marshalling

Prerequisites 

DeltaV v8.3 software or later. VE4050E1C2 VE3051C0 The 2-wide power/controller carriers were upgraded in  2004 to accommodate the DeltaV SIS system. The new version of the 2-wide power/controller carrier has a small white rectangle printed on the board. This is visible between the power supply module and the MD Controller. The new part number is KJ4001X1-BA3 or higher. The old version  had a white dot in place of the rectangle. The old version  (with white dot) will not support downloads to a  Logic Solver. The earliest MD Controllers will not support the DeltaV SIS system. The MD controllers must have a part number 12P2093X082 or higher.