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- Yokogawa
- SCP451-53
- Processor Module
- Japan
- 123 mm × 122 mm × 100 mm
- 1.5kg
- Xiamen, China
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📘 Product Overview – SCP451-53
The SCP451-53 is a 4-channel analog output module designed for use in safety instrumented systems (SIS). As part of the ProSafe-RS safety control platform, it plays a critical role in translating safety-verified digital logic into high-accuracy analog signals. This enables precise control of actuators, valves, and other field devices requiring analog input, all while maintaining full compliance with stringent safety standards such as SIL-3 (IEC 61508).
This module ensures stable, isolated, and accurate signal output, making it ideal for critical infrastructure, process automation, and industrial environments where both reliability and safety are paramount.
📊 Technical Specifications – SCP451-53
| Parameter | Specification |
|---|---|
| Model | SCP451-53 |
| Module Type | Analog Output Module |
| Number of Channels | 4 independent analog output channels |
| Output Signal Types | 0–20 mA, 4–20 mA, 0–10 V DC, 1–5 V DC |
| Output Accuracy | ±0.1% of full scale |
| Output Resolution | 12-bit |
| Isolation | 500 V RMS (output to ground) |
| Load Resistance | 0–1,000 Ω for current; >10 kΩ for voltage output |
| Power Consumption | Approx. 10 W |
| Voltage Supply | 24 V DC via system backplane |
| Safety Certification | SIL-3 (IEC 61508), compliant with safety standards |
| Diagnostic Functions | Self-checks, fault detection, channel diagnostics |
| Operating Temperature | –10°C to +55°C |
| Storage Temperature | –40°C to +85°C |
| Relative Humidity | 5%–95% RH (non-condensing) |
| Shock Resistance | 10 G (11 ms, half-sine wave) |
| Vibration Resistance | 2.5 G, 10–500 Hz |
| Cooling Method | Natural air convection |
| Mounting Type | Rack-mountable (ProSafe-RS system frame) |
| Dimensions (H × W × D) | 123 mm × 122 mm × 100 mm |
| Weight | 1.5 kg |
| Protection Rating | IP20 (when installed in panel) |
🏭 Applications
-
Emergency Shutdown Systems (ESD): Deliver smooth analog shutdown signals to critical systems.
-
Burner Management Systems (BMS): Control fuel flow and burner modulation with precise analog signals.
-
HIPPS (High-Integrity Pressure Protection Systems): Convert logic-based decisions into continuous analog control.
-
Process Valve Control: Interface with valves that require 4–20 mA or voltage-based modulation inputs.
-
Turbine Control Systems: Manage analog setpoints in rotating machinery control for process optimization.
✅ Key Advantages
-
SIL-3 Certified
Ensures the highest level of safety integrity in industrial applications. -
Four High-Accuracy Channels
Compact module capable of handling multiple analog outputs with precise resolution and minimal error. -
Robust Environmental Tolerance
Resistant to extreme temperature, humidity, shock, and vibration conditions. -
Built-in Diagnostics
Real-time channel health monitoring and self-checking ensure long-term system reliability. -
Modular & Scalable
Easily integrated with other modules in ProSafe-RS systems; simplifies expansion and maintenance.
🏷️ Brand & Series
| Attribute | Description |
|---|---|
| Brand | Yokogawa |
| Product Series | ProSafe-RS |
| System Type | Safety Instrumented System (SIS) |
| Module Classification | Analog Output |
| Integration | Rack-based module (backplane) |
| Safety Compliance | SIL-3 (IEC 61508) |
🔁 Related Models – Same Series
| Model | Function / Description | Dimensions (mm) | Weight (kg) | Notes |
|---|---|---|---|---|
| SCP451-11-S1 | Safety logic processor module | 123 × 122 × 100 | 1.2 | Core CPU unit for safety control logic |
| SCP451-51 | Main controller processor module | 123 × 122 × 100 | 1.2 | Redundant safety logic coordination |
| SCP451-DI | Digital input module | 123 × 122 × 100 | 1.3 | Handles discrete input signals |
| SCP451-DO | Digital output module | 123 × 122 × 100 | 1.4 | Switches discrete outputs |
| SCP451-AI | Analog input module | 123 × 122 × 100 | 1.6 | Acquires analog sensor inputs |
🔝 Other Popular Yokogawa Modules
| Model | Function / Description | Dimensions (mm) | Weight (kg) | Notes |
|---|---|---|---|---|
| ADV151-P00 | Digital output module for DCS systems | 123 × 122 × 100 | 0.9 | Standard digital output interface |
| CP701 | Field control station CPU | 200 × 100 × 50 | 1.7 | DCS central controller |
| VI702 | Vnet/IP communication interface module | 110 × 90 × 40 | 0.6 | Enables high-speed network comms |
| EC401-51 | Expansion coupler for I/O modules | 123 × 122 × 100 | 1.1 | Provides bus extension functionality |
| ANB10D-420 | Remote I/O network node | 150 × 100 × 80 | 1.2 | Distributed I/O for remote control |
❓ FAQ (10 Questions & Answers)
Q1: What kind of signals can SCP451-53 output?
A1: It supports 0–20 mA, 4–20 mA current loops, as well as 0–10 V and 1–5 V voltage signals.
Q2: How many output channels are available?
A2: The module offers four fully isolated analog output channels.
Q3: Is the SCP451-53 certified for use in safety systems?
A3: Yes, it is SIL-3 certified, making it suitable for use in safety instrumented systems.
Q4: Can each channel be configured independently?
A4: Yes, each output channel can be set to different signal ranges based on the application.
Q5: What kind of diagnostics are included?
A5: The module features self-checking, output verification, and error reporting for each channel.
Q6: Can this module operate in harsh environments?
A6: Yes, it tolerates high vibration, shock, wide temperature ranges, and high humidity.
Q7: What kind of isolation does it provide?
A7: It provides 500 Vrms isolation between outputs and system ground for safety and noise immunity.
Q8: How is it mounted in the system?
A8: It is mounted into a ProSafe-RS rack using a backplane connector.
Q9: Is the module hot-swappable?
A9: No, replacement must be done with the system in maintenance mode to maintain safety compliance.
Q10: Where is this module commonly used?
A10: It is used in oil and gas, chemical plants, power generation facilities, and any process environment requiring high-reliability analog control outputs.