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- Yokogawa
- CP451-50 S2
- Processor Module Powerful Controller Central Processing Unit
- Japan
- 15.2 cm × 5.1 cm × 20.3 cm
- 0.5kg
- Xiamen, China
- New & In Stock
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview – CP451‑50 S2
Introduction
The CP451‑50 S2 is a high-performance central processing unit for the CENTUM VP Distributed Control System. It handles control logic, communicates with field instruments and operator stations, and ensures real-time processing with reliability and precision.
Brand & Series
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Brand: Yokogawa
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Series: CP451 series – processor modules designed for robust DCS applications
Key Specifications
| Parameter | Specification |
|---|---|
| Model | CP451‑50 S2 |
| Series | CP451 processor modules |
| Processor | 32-bit RISC microprocessor, approx. 100 MHz clock speed |
| Memory | 4 MB flash memory, 2 MB RAM |
| Communication Ports | 2× RS‑232/422/485, 1× Ethernet |
| Digital I/O | 8 inputs, 8 outputs |
| Analog I/O | 4 inputs, 2 outputs |
| Power Supply | 24 V DC |
| Operating Temperature | 0 °C to +60 °C |
| Dimensions (W×H×D) | Approx. 15.2 cm × 5.1 cm × 20.3 cm (6″ × 2″ × 8″) |
| Weight | Approx. 0.5 kg |
| Redundancy | Supports redundant configurations (system-level redundancy) |
| Network Communication | Supports ESB and fiber-optic ESB with 128 Mbps, ER Bus at 10 Mbps; bus topology; redundant paths |
Applications
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Core CPU module for CENTUM VP DCS in refinery, chemical, power, and food processing industries
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Real-time execution of complex control logic, signal processing, and operator communication
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Systems requiring high availability through redundant configurations
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Automation tasks with mid-scale analog and digital I/O needs
Advantages
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Compact yet versatile: Combines digital and analog I/O capabilities in a rugged form factor
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Broad communication support: Ethernet, RS‑232/RS‑485, and high-speed fieldbus interfaces expand integration options
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Reliable operations: Designed for continuous use in industrial settings, with support for temperature and humidity extremes
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Redundancy ready: Enhances system uptime and reliability via CPU-level redundancy and network redundancy
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Space-efficient design: Small physical footprint makes it ideal for control cabinet deployment
Five Related or Same‑Series Models
| Model | Features & Differences | Dimensions (approx.) | Weight (kg) |
|---|---|---|---|
| CP451‑10 | Base CPU with standard I/O and control capacity | Same rack footprint | ~0.45 |
| CP451‑11 | More I/O capacity, rugged design | Same module size | ~0.7 |
| CP451‑10 S2 | Upgraded CPU and memory over CP451‑10 | Same dimensions | ~0.7 |
| CP451‑50 R (Redundant) | Redundant-ready version for failover systems | Same form factor | ~0.7 |
| CP452‑10 | Analog-capable processor variant | Similar compact design | ~0.6 |
Five Other Popular Yokogawa Modules
| Model | Functionality | Approx. Size | Weight (kg) |
|---|---|---|---|
| AAI143‑S50 | 16-channel analog input module | Small DIN module | ~0.3 |
| AAI543‑S50 | 16-channel analog output module | Compact layout | ~0.4 |
| ADV551‑P00 | Fast-response digital output module | Panel-mountable | ~0.35 |
| SDV144‑S53 | 16-channel digital input module with indicators | DIN format | ~0.3 |
| AIP113 | Simple analog input field module | Compact | ~0.3 |
FAQ (10 Q&A)
Q1: What is the I/O capacity of CP451‑50 S2?
A1: It supports 8 digital inputs, 8 digital outputs, 4 analog inputs, and 2 analog outputs.
Q2: Does this module support redundant operation?
A2: Yes—both CPU-level redundancy and redundant bus paths (ESB/fiber‑optic ESB) are supported.
Q3: What communication interfaces are available?
A3: It includes 2 serial ports (RS‑232/422/485) and 1 Ethernet port—ideal for diverse connectivity.
Q4: What memory does it offer?
A4: Equipped with 4 MB of flash memory and 2 MB of RAM for program and data use.
Q5: What are the dimensions and weight?
A5: Measures ~15.2 cm × 5.1 cm × 20.3 cm and weighs about 0.5 kg.
Q6: What voltage power does it use?
A6: Powered by standard 24 V DC via the system chassis.
Q7: What’s the temperature range for operation?
A7: Rated for 0 °C to +60 °C operation.
Q8: Is it applicable in hazardous environments?
A8: This standard version is not explosion-protected, but rugged and reliable for industrial control rooms.
Q9: What network speeds does it support?
A9: ESB and fiber-optic ESB ports operate at up to 128 Mbps; ER Bus supports up to 10 Mbps.
Q10: Where is this module typically used?
A10: Widely deployed across industries—oil & gas, power, chemicals, food processing—where robust DCS control is needed.