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Yokogawa SCP461-51-S1 Processor Module

Yokogawa SCP461-51-S1 Processor Module

Product Description

The SCP461-51-S1 is a high-performance safety processor module designed for the Yokogawa ProSafe-RS Safety Instrumented System (SIS). This module functions as the central logic solver, executing critical safety loops and emergency shutdown...

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SKU: SCP461-51 S1
Vendor: Yokogawa
Category: Processor Module
Related Series:

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Product Description

The SCP461-51-S1 is a high-performance safety processor module designed for the Yokogawa ProSafe-RS Safety Instrumented System (SIS). This module functions as the central logic solver, executing critical safety loops and emergency shutdown (ESD) strategies with extreme precision. Engineered for high-integrity environments, the SCP461-51-S1 ensures process risks are mitigated through rapid logic execution and comprehensive internal diagnostics.

As an “S1” variant, this module is optimized for single-processor or redundant configurations within a Safety Control Unit (SCU). It continuously monitors internal hardware health and communication integrity with I/O modules, providing a SIL3-capable foundation for industrial safety applications. Its compact, fanless design and high manufacturing standards ensure long-term stability in chemical, oil, and gas industry environments.

Technical Specifications

Parameter Specification
Model Identification SCP461-51-S1
System Platform ProSafe-RS Safety Instrumented System
Processor Type Real-time Safety Logic Solver
Safety Integrity Level SIL3 capable (in redundant configuration)
Module Suffix -51 (Standard Type), -S1 (Standard Logic Support)
Logic Execution Time Millisecond-level safety response
Physical Width 8.1 cm
Physical Height 10.3 cm
Physical Depth 14.6 cm
Net Weight 0.5 kg 

Industrial Application Scenarios

  • Executing Emergency Shutdown (ESD) logic in hydrocarbon processing plants.

  • Managing Fire and Gas (F&G) detection and mitigation sequences.

  • Acting as a High-Pressure Protection System (HIPPS) controller for pipeline integrity.

Technical FAQ

Can the SCP461-51-S1 be used in a redundant pair?
Yes. The SCP461-51-S1 is designed to work in dual-redundant architectures. If one processor experiences a fault, the standby unit takes over control seamlessly to maintain safety coverage.

What is the difference between the SCP461 and SCP451?
The SCP461-51-S1 typically provides higher processing capacity and larger memory resources compared to older SCP451 series processors, making it suitable for more complex safety logic and larger I/O configurations.