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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
- T/T, PayPal, Western Union
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Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
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.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.