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- Yokogawa
- SCP451-51 S1
- Processor Module
- Japan
- 123 mm × 122 mm × 100 mm
- 1.2kg
- Xiamen, China
- New & In Stock
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📘 Product Overview – SCP451-51 S1
The SCP451-51 S1 is a high-reliability Processor Module used in safety instrumented systems (SIS). Designed for mission-critical operations, it is an essential component in industrial safety solutions. As part of a safety control system, this module ensures deterministic logic execution, reliable communication, and failsafe operations under any condition.
The S1 variant represents a specific configuration or revision with optimized components or firmware for enhanced safety integrity or system compatibility, typically certified for SIL-3 safety applications.
📊 Technical Specifications – SCP451-51 S1
| Parameter | Specification |
|---|---|
| Model | SCP451-51 S1 |
| Function | Safety Logic Processor Module |
| Safety Certification | SIL-3 (Safety Integrity Level 3) compliant |
| Architecture | Dual-redundant (hot standby capable) |
| Processor Type | 32-bit high-speed logic processor |
| Memory | 128 MB RAM, 64 MB Flash |
| Communication Protocols | Vnet/IP, RS-232, RS-485, Ethernet |
| Diagnostic Functions | Self-checks, watchdog timer, memory parity check |
| Voltage Supply | 24 V DC (via system backplane) |
| Logic Scan Time | < 100 ms typical |
| Operating Temperature | –10°C to +55°C |
| Storage Temperature | –40°C to +85°C |
| Relative Humidity | 5%–95% RH (non-condensing) |
| Mounting Method | Rack mount (ProSafe-RS system) |
| Protection Rating | IP20 (when installed in cabinet) |
| Shock Resistance | 10 G, 11 ms (IEC standard) |
| Vibration Resistance | 2.5 G, 10–500 Hz |
| Dimensions (H × W × D) | 123 mm × 122 mm × 100 mm |
| Weight | 1.2 kg |
| Expansion | Connects to I/O modules via backplane |
| Cooling | Passive convection |
🏭 Applications
-
Emergency Shutdown Systems (ESD)
Quickly shuts down operations when unsafe conditions are detected, preventing escalation. -
Fire & Gas Detection Systems (F&G)
Processes real-time inputs from sensors to activate alarms and suppression systems. -
High-Integrity Pressure Protection Systems (HIPPS)
Ensures over-pressurization does not damage equipment or endanger personnel. -
Burner Management Systems (BMS)
Controls complex burner sequences, ensuring safe ignition and flame monitoring. -
Pipeline Monitoring Systems
Ensures safety logic is in place for valve operations and pressure regulation. -
Critical Alarm Management
Ensures operator awareness during critical events through reliable alert generation.
✅ Product Advantages
-
SIL-3 Certification
Ensures compliance with the highest industrial safety standards. -
Dual-Redundancy
Eliminates single points of failure via hot-standby configuration. -
High-Speed Logic Processing
Ensures real-time response in time-critical safety scenarios. -
Modular Scalability
Seamlessly integrates with additional I/O and communication modules. -
Advanced Diagnostics
Offers system health checks, self-testing, and predictive alerts. -
Wide Environmental Compatibility
Operates reliably across a wide range of temperature and humidity conditions.
🏷️ Brand & Series
| Field | Description |
|---|---|
| Brand | Yokogawa |
| Series | ProSafe-RS |
| Product Category | Safety Processor Module |
| Certification | SIL-3, IEC 61508 compliant |
| Use Environment | Industrial Automation, Safety |
🔁 Related Models (Same Series / Functionally Similar)
| Model | Description | Dimensions (mm) | Weight (kg) | Key Notes |
|---|---|---|---|---|
| SCP451-11-S1 | Earlier model of safety processor module | 123 × 122 × 100 | 1.2 | Compatible with SSC50S control unit |
| SCP451-53 | Analog output module | 123 × 122 × 100 | 1.5 | Provides 4–8 analog outputs |
| SCP451-DI | Digital input module | 123 × 122 × 100 | 1.3 | 16-channel digital inputs |
| SCP451-DO | Digital output module | 123 × 122 × 100 | 1.4 | 16 isolated outputs |
| SCP451-AI | Analog input module | 123 × 122 × 100 | 1.6 | High-accuracy analog signal input |
🔝 Other Popular Yokogawa Models
| Model | Description | Dimensions (mm) | Weight (kg) | Function Type |
|---|---|---|---|---|
| CP701 | Field Control CPU Module | 200 × 100 × 50 | 1.7 | DCS central controller |
| ADV151-P00 | Digital Output Module | 123 × 122 × 100 | 0.9 | Discrete signal output |
| ANB10D-420 | Remote I/O Network Node | 150 × 100 × 80 | 1.2 | Field communication node |
| VI702 | Vnet/IP Communication Interface | 110 × 90 × 40 | 0.6 | Network bridge for I/O |
| EC401-51 | Expansion Coupler Module | 123 × 122 × 100 | 1.1 | I/O expansion interface |
❓ FAQ – SCP451-51 S1
Q1: What does the SCP451-51 S1 module do?
A1: It executes safety-critical logic and controls communications between field devices and central control units within a safety system.
Q2: Is this module compliant with safety standards?
A2: Yes, it is certified for SIL-3 applications in accordance with IEC 61508 standards.
Q3: What kind of redundancy does it support?
A3: The module supports dual-redundant configurations with hot standby switching.
Q4: Can the SCP451-51 S1 be used in hazardous areas?
A4: The module itself is not explosion-proof but is typically housed in certified enclosures when used in hazardous zones.
Q5: How is the module powered?
A5: It receives 24 V DC power via the system backplane within the rack.
Q6: How is logic uploaded or modified?
A6: Using certified engineering tools via the system interface, under secure and controlled environments.
Q7: Can I use this module in a non-Yokogawa system?
A7: It is designed specifically for ProSafe-RS platforms and may not be compatible with third-party systems.
Q8: What happens during a module failure?
A8: In redundant systems, the backup processor automatically takes over, ensuring no interruption in safety control.
Q9: Is regular maintenance required?
A9: While minimal, scheduled diagnostics and firmware checks are recommended as part of lifecycle safety management.
Q10: How does this differ from SCP451-11?
A10: The S1 suffix typically indicates enhanced or updated hardware/firmware and possibly increased compatibility or performance.
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