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- Yokogawa
- AFS30D
- Duplex Field Control Unit
- Japan
- 207 × 265.9 x 482.6 mm
- 8 kg
- 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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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Yokogawa AFS30D Duplex Field Control Unit (FCU) is a core controller used in Yokogawa distributed control systems (DCS). It functions as the central processing unit of a Field Control Station (FCS), responsible for executing real-time control logic, managing I/O communication, and maintaining stable plant operation.
This model is designed with a duplex redundant architecture, ensuring continuous operation in mission-critical industrial environments where system downtime is not acceptable.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | Yokogawa |
| Model | AFS30D |
| Product Type | Duplex Field Control Unit (FCU) |
| System Role | Central controller for Field Control Station (FCS) |
| Control Architecture | Duplex redundant CPU system |
| Communication | Vnet / Vnet/IP + FIO / ESB bus |
| Function | Real-time process control and I/O management |
| Redundancy | Full CPU duplex redundancy |
| Memory | Battery-backed system memory |
| Processing Type | Industrial RISC processor architecture |
| Power Supply | AC/DC industrial configuration |
| Dimensions | 207 × 265.9 × 482.6 mm |
| Weight | 8 kg |
| Mounting Type | 19-inch rack / cabinet-mounted |
| Operating Environment | Industrial control cabinet environment |
| System Compatibility | Yokogawa CENTUM VP / CENTUM CS / FCS systems |
Function and Working Principle
The AFS30D operates as the central processing engine of a distributed control system.
Its core functions include:
- Collecting real-time process data from I/O modules
- Executing control logic such as PID, sequencing, and interlocks
- Managing communication across system networks
- Synchronizing data between redundant controllers
- Sending output signals back to field devices
The duplex architecture ensures that if one controller fails, the standby unit takes over immediately without interrupting plant operations.
Role in Industrial Control Systems
Within Yokogawa DCS architecture, the AFS30D plays a central role:
- Acts as the main controller of the Field Control Station (FCS)
- Executes mission-critical control strategies
- Coordinates all connected I/O modules
- Ensures system-wide synchronization
- Provides high availability through redundancy
It is a core component in modern industrial automation systems.
Industrial Applications
The Yokogawa AFS30D is widely used in:
- Distributed Control Systems (DCS)
- Oil and gas production facilities
- Petrochemical and refinery plants
- Power generation systems
- Chemical processing industries
- Large-scale industrial automation systems
It is designed for continuous 24/7 operation in critical environments.
Installation and System Integration
For proper operation, the AFS30D should be installed as follows:
- Mounted in standard 19-inch industrial racks
- Connected to Vnet / Vnet-IP communication networks
- Integrated with ESB / FIO node systems
- Installed in controlled cabinet environments
- Proper grounding and EMI protection applied
Correct installation ensures long-term stability and redundancy performance.
Compatible System Components
The AFS30D typically works with:
- Yokogawa FIO I/O modules
- ESB / ER bus node units
- Vnet / Vnet-IP communication modules
- Analog and digital interface modules
- CENTUM VP system platforms
These components rely on the FCU for centralized control and coordination.
Recommended Alternative Models
| Model | Type | Key Feature | Application |
|---|---|---|---|
| AFS20D | Duplex FCU | Lower capacity controller | Medium-scale systems |
| AFF50D | FCU platform | Higher performance architecture | Large-scale systems |
| AFV10D | Compact FCU | Space-saving design | Small systems |
| AFG30D | FCU variant | Enhanced processing performance | High-speed control systems |
| AFS series | FCU family | Scalable control architecture | Industrial automation systems |
Key Advantages
- Duplex redundant control architecture
- High-speed real-time processing
- Stable integration with Yokogawa DCS systems
- Strong fault tolerance and failover capability
- Scalable system architecture
- Designed for continuous industrial operation
Technical FAQs
What is the main function of the AFS30D?
It is the central controller of a Yokogawa Field Control Station, executing real-time industrial process control.
Is it a PLC?
No, it is a DCS Field Control Unit designed for large-scale process automation.
Does it support redundancy?
Yes, it uses a duplex CPU architecture for fail-safe operation.
Conclusion
The Yokogawa AFS30D Duplex Field Control Unit is a critical component in industrial automation systems. It provides stable, redundant, and real-time control for distributed control architectures, ensuring safe and continuous operation in mission-critical environments.