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Product Overview
The Yokogawa CP471-51 Processor Module is a high-performance, industrial-grade processor module designed specifically for use within the CENTUM VP distributed control system (DCS). As part of the field control station hardware, the CP471-51 ensures robust processing, control execution, and communication capabilities. It is capable of operating in dual-redundant configurations, contributing to fault-tolerant system architecture.
The CP471-51 is compatible with the following field control unit types:
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AFV30 series
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AFV40 series
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A2FV50 series
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A2FV70 series
Its support for online replacement (hot-swapping) in redundant configurations enhances system availability and simplifies maintenance operations.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | CP471-51 |
| Applicable Systems | CENTUM VP R6.05 or later |
| Supported Control Units | AFV30, AFV40, A2FV50, A2FV70 (duplex or simplex types) |
| Installation Compatibility | Requires EC401 ESB Bus Coupler Module (style code S3 or later) |
| Operating Configuration | Supports dual-redundant CPU configurations |
| Weight | Approx. 0.7 kg |
| Dimensions (W x H x D) | 199.5 mm x 149 mm x 32.8 mm |
| Mounting | Field Control Unit slot |
| Explosion Protection | Available with suffix -1 (optional, model-dependent) |
| Enhanced RFI Option | Available with option code /ERFI (Tokuchu) |
| Maintenance | Online replacement supported in redundant configurations |
| Replacement Notes | Not compatible with CP461 in dual configuration, requires engineer for swap |
| Compliance | Complies with CENTUM VP field unit standards |
| Standard Accessory Included | Processor Module Modification History Label (Part No: T9044AR) |
Applications
The CP471-51 Processor Module is ideally suited for:
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Continuous Process Industries: Oil & gas, petrochemical, power generation, water treatment
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Batch Processes: Pharmaceuticals, food & beverage production
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Mission-Critical Automation: Redundant systems requiring uninterrupted operation
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DCS Expansion Projects: Replacing legacy CP461 units with more capable CP471 processors
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Highly Regulated Environments: Where explosion-proof options and certification compliance are critical
Key Advantages
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High Reliability: Enables dual-redundant configuration, ensuring zero process downtime during failure.
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Hot Swappable: Supports online replacement in redundant setups for minimized operational interruption.
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Backward Compatibility: Can replace older CP461 models in existing systems (with proper upgrade paths).
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Field-Proven Architecture: Based on Yokogawa’s CENTUM VP platform with decades of operational success.
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Flexible Configurations: Multiple suffix and option codes allow customization for explosion-proof and RFI-sensitive environments.
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Compact Design: Slim module saves cabinet space while maintaining high performance.
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Future-Ready: Compatible with latest CENTUM VP R6.05 and newer, allowing seamless integration in upgraded systems.
Frequently Asked Questions (FAQs)
Q1: Is the CP471-51 compatible with older versions of CENTUM VP?
A1: No, it requires CENTUM VP Control Function version R6.05 or later.
Q2: Can CP471-51 replace CP461 directly?
A2: Replacement is possible but must be performed by a Yokogawa authorized service engineer. It cannot coexist with CP461 in redundant mode.
Q3: What happens if one CP471-51 in a redundant pair fails?
A3: The other CP471-51 module takes over seamlessly without interrupting control operations.
Q4: Does CP471-51 support explosion-proof installations?
A4: Yes, models with the -1 suffix are designed for explosion protection compliance.
Q5: Can users perform module replacement themselves?
A5: Only online replacement in dual-redundant configurations is user-accessible. Full replacements (e.g., CP461 to CP471) must be done by authorized engineers.
Q6: Which bus coupler modules are compatible with CP471-51?
A6: EC401 modules with style code S3 or later are required.
Q7: Is enhanced RFI protection available?
A7: Yes, the optional “/ERFI” Tokuchu code adds enhanced RFI resistance.
Q8: Is there a difference between CP471-00 and CP471-51?
A8: CP471-51 is a suffix-specific model variation for particular system and compliance requirements. Confirm model code according to installation location and application needs.
Q9: Can CP471 be used in simplex configurations?
A9: Yes, it supports both simplex and duplex (redundant) setups.
Q10: Are there any size limitations for the control cabinet?
A10: The compact design (199.5 x 149 x 32.8 mm) allows for easy integration into standard control cabinets.
Related or Similar Yokogawa Models
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| CP471-00 | Basic version without explosion protection | 199.5 x 149 x 32.8 | 0.7 kg |
| CP471-01 | With explosion protection | 199.5 x 149 x 32.8 | 0.7 kg |
| CP471-10 | FM NI compliant version | 199.5 x 149 x 32.8 | 0.7 kg |
| CP471-11 | FM NI + explosion protection | 199.5 x 149 x 32.8 | 0.7 kg |
| CP461 | Legacy processor module for earlier systems | Similar size | ~0.65 kg |
| EC401 (S3+) | Required ESB bus coupler module | Varies by version | ~0.5–0.8kg |
Popular Yokogawa Models
| Model | Product Type | Description | Dimensions (mm) | Weight |
|---|---|---|---|---|
| PW101 | Power Supply Module | Supplies power to the FCS unit | 130 x 140 x 30 | ~0.6 kg |
| PW402 | Power Supply Module | Enhanced redundancy power supply for FCS | 200 x 150 x 40 | ~0.8 kg |
| ADV569-P01 | Digital Output Module | Provides isolated digital output channels | 130 x 130 x 40 | ~0.5 kg |
| AAI543-H50 | Analog Input Module | High-density 16-channel analog input | 130 x 140 x 40 | ~0.6 kg |
| AAI841-H00 | Analog Input Module with HART | HART-enabled analog input processing | 130 x 140 x 40 | ~0.65 kg |
| ALR121-S50 | Communication Redundancy Module | Enables redundant link for control networks | 130 x 140 x 40 | ~0.5 kg |
