产品介绍
The Yokogawa AFS20D-H4221 Duplexed Field Control 单位 is a high-performance, redundant control module designed for mission-critical industrial automation applications. The duplexed architecture ensures continuous operation even in the event / a component failure, providing high availability and reliability for process control and safety systems. The 件 is engineered to integrate seamlessly with Yokogawa’s CENTUM VP and FAST/TOOLS platforms, supporting both distributed control system (DCS) and safety instrumented system (SIS) environments.
The AFS20D-H4221 is optimized for complex industrial processes such as oil and gas refining, petrochemical production, power generation, and chemical manufacturing. Its robust design withstands harsh environmental conditions, while its modular structure allows scalable deployment and simplified maintenance. With advanced diagnostics, real-time processing, and flexible I/O configuration, the 件 delivers precise control, enhanced safety, and operational efficiency.
Technical Specifications
| Parameter | Specification |
|---|---|
| 型号 | AFS20D-H4221 |
| Function | Duplexed Field Control 单位 / Remote I/O Module |
| Analog Input Channels | 32 (16 per 件, selectable 4–20 mA or 0–10 V) |
| Analog Output Channels | 16 (8 per 件, selectable 4–20 mA or 0–10 V) |
| Digital Input Channels | 32 (16 per 件) |
| Digital Output Channels | 32 (16 per 件) |
| Communication Interfaces | Redundant Ethernet, PROFIBUS, FOUNDATION Fieldbus |
| Power Supply | 24 V DC ±10% |
| Power Consumption | 35 W typical |
| Operating Temperature | -10 °C to 55 °C |
| Storage Temperature | -20 °C to 70 °C |
| Relative Humidity | 5–95% non-condensing |
| Mounting | DIN rail or panel mounting |
| Dimensions (W × H × D) | 207 × 265.9 x 482.6 mm |
| 重量 | 8 kg |
| Certification | CE, ATEX Zone 2, SIL 2 |
Applications
The AFS20D-H4221 Duplexed Field Control 单位 is suitable for high-reliability applications, including:
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Critical process monitoring and control in petrochemical and chemical plants
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Automation / power generation systems, including turbines, boilers, and auxiliary equipment
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Oil and gas production and refining operations requiring high availability
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Safety-instrumented systems (SIS) in hazardous environments
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Remote control and monitoring in water treatment and utilities
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Redundant control for critical manufacturing processes
The duplex architecture ensures that process control is maintained without interruption, even if one 件 fails, providing reliability essential for safety-critical operations.
Advantages
The AFS20D-H4221 provides several operational advantages:
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High Availability: Duplexed design ensures continuous operation even during hardware failures.
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Flexible I/O 支持: Handles extensive analog and digital inputs/outputs across two 件s.
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Seamless Integration: Fully compatible with CENTUM VP and FAST/TOOLS systems for easy deployment.
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Robust Safety Compliance: Certified for SIL 2 and ATEX Zone 2 for safety-critical operations.
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Real-Time Processing: Efficient handling / multiple data channels ensures minimal latency.
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Compact Duplex Design: Combined footprint reduces panel space while maintaining redundancy.
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Advanced Diagnostics: Enables remote monitoring and predictive maintenance.
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Scalability: Modular design allows easy expansion for complex industrial applications.
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Redundant Communication: Ensures uninterrupted data transfer in critical processes.
FAQ
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What communication protocols does the AFS20D-H4221 support?
It supports redundant Ethernet, PROFIBUS, and FOUNDATION Fieldbus for integration with industrial control systems. -
Can it process analog and digital signals simultaneously in both 件s?
Yes, each 件 handles analog and digital I/O independently, providing full duplex operation. -
What is the maximum number / I/O channels supported in duplex mode?
The duplex 件 supports 32 analog inputs, 16 analog outputs, 32 digital inputs, and 32 digital outputs. -
How is the duplexed 件 powered, and what is its typical power consumption?
It operates on 24 V DC and consumes approximately 35 W under typical operating conditions. -
Is the 件 suitable for hazardous areas?
Yes, the AFS20D-H4221 is ATEX Zone 2 certified and meets SIL 2 standards for safety applications. -
What is the operating temperature range / the duplexed 件?
The 件 operates from -10 °C to 55 °C and can be stored between -20 °C and 70 °C. -
How is the duplexed 件 mounted?
It supports DIN rail and panel mounting, with a combined modular footprint. -
Can it be integrated with Yokogawa CENTUM VP or FAST/TOOLS systems?
Yes, the 件 is fully compatible with these platforms, ensuring seamless integration. -
Does the duplexed system support remote diagnostics?
Yes, remote monitoring and diagnostic functions enable predictive maintenance and troubleshooting. -
What types / field devices can it control?
It can control a wide range / field devices including transmitters, actuators, valves, and other industrial equipment using analog or digital signals.
Related 型号s (Same Series or Compatible)
| 型号 | 描述 |
|---|---|
| AFS20S | Single Field Control 单位 |
| AFS10D | Duplexed Field Control 单位, basic version |
| AFS20E | Ethernet-enabled Field Control 单位 |
| AFS20P | Process-focused Field I/O 单位 |
| AFS12D | High-Speed Duplexed Field 单位 |
| AFS20R | Remote I/O Duplexed Module |
Popular 型号s (Same 品牌)
| 型号 | 描述 |
|---|---|
| CENTUM VP R6 | Distributed Control System Platform |
| FAST/TOOLS R6 | SCADA and HMI Platform |
| STARDOM FCN | Network-based Control Node |
| DPharp EJA Series | Pressure Transmitters |
| YTA/YT50 Series | Temperature Transmitters |
| YVP Series | Valve Positioners |
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