Excellent PLC
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| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Introduction
The Yokogawa AFG84D-H4123 Duplexed Field Control Station Migration Kit is a high-reliability control system component designed for upgrading and modernizing existing Yokogawa control systems. It enables seamless migration from legacy systems to the latest CENTUM VP platform while maintaining operational continuity.
This migration kit includes dual redundant field control stations (FCS) that ensure uninterrupted process operations, providing both flexibility and reliability in industrial environments such as petrochemical plants, power generation, and manufacturing facilities. The AFG84D-H4123 ensures compatibility with existing I/O modules and control programs, simplifying the upgrade process and minimizing downtime during migration.
Product Advantages
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Seamless System Migration – Designed to support smooth transition from older Yokogawa systems (such as CENTUM CS3000) to the latest CENTUM VP.
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High Reliability and Redundancy – Dual configuration (duplexed) ensures continuous control operation even if one processor fails.
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Enhanced Performance – Improved CPU speed and communication capability for real-time process handling.
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Backward Compatibility – Compatible with existing I/O cards and field wiring, reducing engineering effort.
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Simplified Maintenance – Modular structure with easy-to-replace units ensures quick service and low maintenance time.
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Scalability – Flexible design to support expansion for large-scale automation systems.
Technical Specifications
| Parameter | Description |
|---|---|
| Model | AFG84D-H4123 |
| Product Type | Duplexed Field Control Station Migration Kit |
| System Compatibility | CENTUM VP / CS3000 / CS1000 series |
| Processor Configuration | Dual redundant (duplexed) CPUs |
| Communication Interface | Vnet/IP, Ethernet (10/100 Mbps) |
| Input/Output Capacity | Up to 10,000 I/O points (depending on configuration) |
| Memory Capacity | 256 MB main memory, expandable |
| Operating Voltage | 24 VDC |
| Power Consumption | 80 W |
| Operating Temperature | 0 to 55°C |
| Storage Temperature | -20 to 70°C |
| Relative Humidity | 10% to 90% (non-condensing) |
| Dimensions | 207 × 265.9 × 482.6 mm |
| Weight | 8 kg |
| Mounting Type | Rack-mounted |
| Redundancy | CPU, communication, and power supply redundancy |
| Compliance | CE, CSA, UL certified |
| Cooling Method | Forced air cooling |
Product Applications
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Oil and Gas refineries
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Petrochemical plants
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Power generation stations
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Water treatment and utility plants
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Pharmaceutical production lines
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Paper and pulp manufacturing systems
FAQ
Q1: What type of communication network does the AFG84D-H4123 support?
A1: The AFG84D-H4123 supports Vnet/IP and standard Ethernet communication for high-speed and reliable data transmission between controllers and operation stations.
Q2: Can the AFG84D-H4123 be used with legacy Yokogawa I/O modules?
A2: Yes, it is fully backward compatible with most Yokogawa legacy I/O modules, allowing reuse of existing wiring and reducing migration costs.
Q3: How does the duplexed configuration improve reliability?
A3: The dual CPU structure allows one processor to automatically take over control if the other fails, ensuring uninterrupted operation.
Q4: Is the AFG84D-H4123 suitable for large-scale distributed control systems?
A4: Yes, it is designed for scalability and can be deployed in both medium and large distributed control networks.
Q5: What operating system does the control station use?
A5: It operates under a real-time embedded control OS optimized for deterministic process control and redundancy management.
Q6: How is system synchronization achieved between redundant CPUs?
A6: Synchronization is managed through high-speed internal communication, ensuring both CPUs maintain identical process states at all times.
Q7: What diagnostic functions are included in the AFG84D-H4123?
A7: It includes advanced self-diagnostic and event logging functions for quick fault detection and predictive maintenance.
Q8: How is firmware updating handled in duplexed systems?
A8: The system supports online firmware updates with automatic failover, preventing downtime during maintenance.
Q9: Does the AFG84D-H4123 require specific grounding or shielding?
A9: Proper grounding and cable shielding are recommended to maintain noise immunity and prevent communication interference.
Q10: Can the system be integrated with third-party devices?
A10: Yes, the controller supports open communication protocols and can interface with third-party equipment using Modbus or OPC interfaces.
Related or Same-Series Models
| Model | Description | Configuration | Communication | Application |
|---|---|---|---|---|
| AFG84D-H4111 | Duplexed FCS Migration Kit | Dual CPU | Vnet/IP | Control system upgrade |
| AFG84D-H4115 | Standard Field Control Station | Single CPU | Ethernet | Small system upgrade |
| AFG84D-H4120 | Enhanced FCS Module | Dual CPU | Vnet/IP | Industrial process control |
| AFG84D-H4130 | FCS Expansion Module | Dual CPU | Vnet/IP | System scalability |
| AFG84D-H4140 | Redundant Control Unit | Duplexed | Ethernet | High-availability systems |
| AFG84D-H4150 | Advanced Migration Controller | Dual CPU | Vnet/IP | Distributed system modernization |
Popular Models from the Same Brand
| Model | Product Type | Voltage | Dimensions (mm) | Weight | Description |
|---|---|---|---|---|---|
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| AAI141-H50 | Analog Input Module | 24 VDC | 230 × 160 × 85 | 1.6 kg | High-density input card for FCS |
| AAI543-S50 | Analog Output Module | 24 VDC | 230 × 160 × 85 | 1.7 kg | Precision output control for process automation |
