Product Description
The AFF50D-H41101 is a duplex redundant Field Control Unit (FCU) developed for the Yokogawa CENTUM VP integrated production control system. Unlike basic field transmitters, this FCU acts as the primary control intelligence of the DCS, executing regulatory control, sequential logic, and advanced mathematical functions with high deterministic performance.
Engineered for mission-critical process industries, the AFF50D-H41101 features a fully redundant architecture. It incorporates two synchronized processor modules operating in parallel; if the active CPU fails, the standby unit assumes control instantaneously without causing process disturbance (bumpless transfer).
Designed for high availability and continuous plant operation, the unit supports deterministic communication over dual-redundant Vnet/IP networks, forming the backbone of large-scale automation infrastructures in refineries, offshore platforms, and complex manufacturing facilities.
Technical Specifications
| Parameter | Specification |
|---|---|
| Function | Duplex Redundant Field Control Unit (FCU) |
| Processor | High-speed 32-bit RISC processor |
| Communication Interface | Dual-redundant Vnet/IP (1 Gbps) |
| I/O Capacity | Supports multiple local and remote I/O nodes |
| Control Scan Cycle | Selectable 0.1 s to 1 s |
| Input Voltage | 100–120 V AC or 220–240 V AC (system dependent) |
| Internal Memory | ECC RAM for enhanced data integrity |
| Redundancy | Dual CPU, power supply, and communication bus |
| Mounting | 19-inch rack or cabinet installation |
| Operating Temperature | 0°C to +50°C |
| Weight | 1.2 kg |
Application
The AFF50D-H41101 is deployed in high-availability control environments such as:
-
Refinery process control systems
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Offshore oil & gas production platforms
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Pharmaceutical and specialty chemical plants
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Steam turbine and reactor safety control systems
It is specifically selected for applications where controller failure could result in significant financial loss, environmental impact, or safety risk.
Technical FAQ
What happens during a CPU switchover on the AFF50D-H41101?
The duplex architecture ensures a bumpless transfer. The standby CPU continuously mirrors the active processor’s memory and control state, enabling takeover in less than one scan cycle without interrupting field operations.
Can this unit be expanded with remote I/O?
Yes. The AFF50D-H41101 supports both local I/O modules and remote I/O units connected via ESB or ER bus networks, providing scalable architecture for geographically distributed process equipment.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
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