Overview
The Yokogawa AFF50D-H41201 Field Control Unit (FCU) is an advanced controller designed for distributed control systems (DCS) within complex industrial environments. It provides seamless integration of process I/O, communication, and control functions, ensuring stable and responsive plant operation. Moreover, it supports high-speed data exchange and real-time control logic processing, which makes it ideal for mission-critical automation applications. Built with Yokogawa’s proven CENTUM VP architecture, the AFF50D-H41201 offers exceptional reliability, scalability, and performance continuity for continuous process industries.
Technical Specifications
| Parameter |
Specification |
| Model Number |
AFF50D-H41201 |
| Product Type |
Field Control Unit (FCU) |
| Manufacturer |
Yokogawa Electric Corporation |
| Processor |
High-speed dual 32-bit RISC processors |
| Communication Interface |
Vnet/IP, ESB Bus |
| Redundancy |
CPU, power, and communication redundancy supported |
| I/O Capacity |
Up to 1,024 I/O points per node |
| Power Supply |
24 V DC nominal |
| Current Consumption |
Approx. 1.5 A |
| Internal Memory |
256 MB DRAM, 64 MB Flash |
| Control Execution Cycle |
10 to 100 ms configurable |
| Mounting Method |
Panel or rack mounting |
| Operating Temperature |
0°C to +55°C |
| Storage Temperature |
-20°C to +70°C |
| Relative Humidity |
5–95% RH (non-condensing) |
| Dimensions |
300 mm (W) × 130 mm (H) × 200 mm (D) |
| Weight |
Approx. 4.5 kg |
| Certifications |
CE, UL, CSA, RoHS compliant |
FAQ
Q1: What is the main role of the AFF50D-H41201 in a DCS system?
A1: It acts as the core field controller, executing control logic and managing communication between I/O modules and the system network.
Q2: Can this unit be used with existing CENTUM VP systems?
A2: Yes, it is fully compatible with Yokogawa CENTUM VP and CS 3000 control systems.
Q3: Does it support redundant configuration?
A3: Yes, the unit supports CPU, communication, and power redundancy for uninterrupted operations.
Q4: What industries commonly use this Field Control Unit?
A4: It is commonly deployed in oil and gas, power generation, chemical, and water treatment sectors.
Q5: Is maintenance easy to perform?
A5: Absolutely. Its modular and hot-swappable design allows quick replacement without system shutdown.
