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Yokogawa SCP461-51 Safety-Related Redundant CPU Module
- Product Introduction: It is a safety – level redundant CPU module belonging to Yokogawa’s ProSafe – RS safety instrumented system. It is designed based on the IEC 61508 standard, with SIL 3 safety integrity level. It is used to implement the core safety logic calculation and control functions in the industrial process.
- Technical Specifications:
- Safety integrity level: SIL 3, in line with IEC 61508 and IEC 61511 standards.
- CPU configuration: Dual – core redundant CPU, operating frequency 800MHz.
- Memory: 1GB SDRAM (with ECC function), 512MB Flash.
Detailed content
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- Redundancy mode: 2:1 hot standby redundancy, switching time ≤ 50ms.
- Working voltage: 24V DC, current consumption ≤ 1.2A.
- Working temperature: -20~70°C.
- Functional Characteristics:
- High safety level: It meets the SIL 3 standard, and can effectively prevent dangerous failures in the production process.
- Dual – core redundancy: The dual – CPU architecture and ECC memory can detect and correct faults in time, ensuring the reliability of safety logic operation.
- Function block programming: Supports FBD, LD and other programming languages, which is convenient for users to configure complex safety interlock logic.
- Online debugging: It can perform online modification and debugging of safety logic without stopping the system, improving engineering efficiency.
- Application Scenarios: It is applied in the safety instrumented systems of high – risk industries such as petroleum chemical, chemical and nuclear power. It is used to implement safety functions such as emergency shutdown (ESD), fire and gas protection (F&G), and over – pressure protection of pressure vessels, ensuring the safety of the production process and the surrounding environment.
