products

Product Description This section provides general information on DeltaV SIS hardware. Refer to the Installing Your DeltaV Distributed Control System manual for more information on DeltaV system hardware. DeltaV SIS Hardware The DeltaV SIS process safety system consists of the following hardware: „ Redundant Logic Solvers (SLS 1508) and termination blocks „ SISNet Repeaters (see separate product data sheet) „ Carrier extender cables „ Local peer bus extender cables „ Right 1-wide carrier with termination Logic Solvers (SLS 1508) contain the logic-solving capability and provide an interface to 16 I/O channels that can be configured as Discrete Input, Discrete Output, Analog Input (HART) and HART two-state output channels. Logic Solvers and termination blocks install on the 8-wide carrier. Logic Solvers communicate with each other through the carriers over a two-channel, local peer bus (SISnet) and remote peer ring. 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. Redundant Logic Solvers use four slots.