Description
Product Description
The SCP461-11 serves as the high-performance logic processing engine for Yokogawa ProSafe-RS safety instrumented systems. Specifically engineered for integration within the SSC60S (Single) and SSC60D (Duplex) safety control units, this module provides the computational reliability required for SIL3 safety loops. By utilizing a dedicated 32-bit RISC architecture, the SCP461-11 ensures rapid execution of safety logic while maintaining rigorous diagnostic coverage.
Technical Specifications
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CPU Architecture: 32-bit RISC high-speed processor
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Clock Frequency: 40 MHz
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Flash Memory: 2 MB dedicated for system firmware and application logic storage
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NVRAM: 128 KB non-volatile memory for retaining operation data and sequence-of-events
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Communication Interface: Dual isolated RS-485 ports supporting high-speed fieldbus and peer-to-peer connectivity
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Expansion Capability: Dual-slot interface for auxiliary I/O integration or specialized communication sub-modules
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Redundancy Support: Fully compatible with dual-redundant configurations in SSC60D units
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Safety Integrity Level: Suitable for use in SIL3 applications according to IEC 61508
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Power Consumption: 5V DC at 0.5A (Typical)
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Operating Temperature: 0 to 50 degrees Celsius
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Weight: Approx. 0.35 kg
Core Applications
This processor is widely deployed in emergency shutdown systems (ESD), fire and gas systems (F&G), and burner management systems (BMS). Its robust design allows for stable operation in harsh petrochemical, power generation, and upstream oil and gas environments where system uptime is critical to personnel and environmental safety.
FAQ
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How does the SCP461-11 handle power loss?
The module utilizes 128 KB of NVRAM to ensure that critical operational variables and diagnostic logs are preserved immediately upon loss of system power, preventing data corruption.
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Can I use this module in a non-redundant setup?
Yes, the SCP461-11 is designed to function as a standalone controller in SSC60S units or as part of a synchronized pair in SSC60D redundant units.
