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- Yokogawa
- ANB11D-225
- Fiber Optic ESB Bus Node Unit
- Japan
- 482.6 × 221.5 × 205 mm
- 10 kg
- Xiamen, China
- New & In Stock
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Product Introduction
The Yokogawa ANB11D-225 Fiber Optic ESB Bus Node Unit is a dual-redundant optical ESB bus communication node designed for Yokogawa CENTUM VP distributed control systems. It provides reliable communication between remote I/O modules and Field Control Units (FCU) through optical fiber transmission, making it suitable for large-scale industrial automation systems that require long-distance signal communication and high availability.
Yokogawa ANB11D-225 Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Yokogawa |
| Model Number | ANB11D-225 |
| Product Type | Fiber Optic ESB Bus Node Unit |
| System Application | CENTUM VP DCS System |
| Series | ANB11D Optical ESB Bus Node Unit |
| Communication Type | Optical ESB Bus |
| Bus Configuration | Dual-Redundant ESB Bus |
| Power Supply Type | Dual-Redundant Power Supply |
| Rated Power Supply | 220–240 V AC |
| Frequency | 50/60 Hz |
| Power Consumption | Approx. 230 VA / 120 W |
| Optical Repeater Function | Supported |
| Transmission Distance | Up to 5 km (with compatible optical repeater modules) |
| Mounting Type | 19-inch Rack Mount |
| I/O Module Capacity | Maximum 8 I/O Modules |
| Compatible Optical Repeater Module | ANT502 / ANT512 Series |
| Communication Interface | Optical Fiber ESB Bus |
| Connector Type | ESB Bus Connector Unit |
| Dimensions | 482.6 × 221.5 × 205 mm |
| Weight | 10 kg |
| Operating Temperature | 0 to 60°C |
| Installation Environment | Industrial Control Cabinet |
What Is Yokogawa ANB11D-225?
The Yokogawa ANB11D-225 is a remote communication node unit used in Yokogawa distributed control systems. Its main function is to collect signals from field I/O modules and transfer process data to the Field Control Unit through an optical ESB bus network.
In a typical DCS configuration, the ANB11D-225 works as an intermediate communication station between field devices and the control layer. It converts electrical I/O communication signals into optical signals, allowing data transmission over longer distances with improved electromagnetic interference resistance.
The dual-redundant architecture provides higher system availability. If one communication or power path experiences a problem, the redundant configuration helps maintain stable system operation and reduces unexpected shutdown risks.
Main Applications
Oil and Gas Process Automation
The Yokogawa ANB11D-225 is commonly installed in oil refinery and petrochemical facilities where remote field instruments require reliable communication with central control systems.
Chemical Industry Control Systems
Chemical production plants use this node unit to connect distributed I/O stations and maintain stable monitoring and control of complex production processes.
Power Generation Facilities
The module supports power plant automation applications where high reliability and continuous operation are essential.
Large Industrial DCS Networks
The ANB11D-225 is suitable for large-scale facilities requiring long-distance communication between control rooms and remote equipment areas.
Key Advantages of Yokogawa ANB11D-225
| Advantage | Description |
|---|---|
| Optical Fiber Communication | Reduces signal interference and improves communication reliability in industrial environments. |
| Dual-Redundant Design | Provides backup capability for power and communication systems to improve availability. |
| Long Distance Transmission | Supports remote I/O installation through optical ESB bus communication. |
| High System Compatibility | Designed for Yokogawa CENTUM VP and related control architectures. |
| Flexible I/O Expansion | Supports multiple I/O modules for different industrial control applications. |
| Rack Installation Design | Standard 19-inch mounting allows convenient cabinet integration. |
Compatible Parts and Related Modules
The Yokogawa ANB11D-225 normally operates together with several Yokogawa DCS components.
| Related Model | Function |
|---|---|
| ANT401 Optical ESB Bus Repeater Master Module | Provides optical ESB bus communication from FCU side. |
| ANT411 Optical ESB Bus Repeater Master Module | Supports extended optical communication applications. |
| ANT502 Optical ESB Bus Repeater Slave Module | Provides optical signal extension for remote node communication. |
| ANT512 Optical ESB Bus Repeater Slave Module | Used for longer-distance optical communication requirements. |
| PW481 Power Supply Module | Provides power supply for node unit operation. |
| PW482 Power Supply Module | Supports redundant power configurations. |
| PW484 Power Supply Module | Industrial power supply option for Yokogawa systems. |
| CENTUM VP FCU | Main controller communicating with ANB11D node units. |
| Yokogawa I/O Modules | Provide field signal acquisition and control functions. |
Common Maintenance Issues
| Problem | Possible Cause |
|---|---|
| Communication Failure | Optical fiber connection problems or ESB bus communication interruption. |
| Node Unit Offline | Power supply module failure or redundant power issue. |
| I/O Module Communication Loss | Incorrect module installation or communication configuration problems. |
| System Alarm Triggered | Optical repeater or bus communication abnormality. |
| Intermittent Signal Loss | Fiber cable damage, contamination, or environmental interference. |
Recommended Related Yokogawa Models
| Model | Product Type | Application |
|---|---|---|
| Yokogawa ANB11D-225 | Fiber Optic ESB Bus Node Unit | Dual-redundant DCS remote I/O communication |
| Yokogawa ANB11S | Optical ESB Bus Node Unit | Single ESB bus applications |
| Yokogawa ANB10D | ESB Bus Node Unit | Standard ESB communication networks |
| Yokogawa ANT401 | Optical ESB Bus Repeater Master Module | FCU optical communication interface |
| Yokogawa ANT411 | Optical ESB Bus Repeater Master Module | Long-distance optical transmission |
| Yokogawa ANT502 | Optical ESB Bus Repeater Slave Module | Remote node communication |
Popular Yokogawa DCS Spare Parts
| Model | Description | Application Area |
|---|---|---|
| Yokogawa ANB11D-225 | Dual-Redundant Optical ESB Node Unit | CENTUM VP DCS |
| Yokogawa AAI141 | Analog Input Module | Process measurement systems |
| Yokogawa AAI143 | Analog Input Module | Industrial signal acquisition |
| Yokogawa AAV141 | Analog Output Module | Control output applications |
| Yokogawa ADV151 | Digital Input Module | Field status monitoring |
| Yokogawa ADV551 | Digital Output Module | Industrial actuator control |
| Yokogawa ALR111 | RS-232C Communication Module | Serial communication systems |
Technical FAQs
1. What is Yokogawa ANB11D-225 used for?
The ANB11D-225 is an optical ESB bus node unit used to connect remote I/O modules with Yokogawa CENTUM VP control systems.
2. What is the difference between ANB11D and ANB11S?
The ANB11D supports dual-redundant ESB bus architecture, while ANB11S is designed for single ESB bus configurations.
3. Which optical repeater modules are compatible with ANB11D-225?
The ANB11D-225 can work with Yokogawa ANT502 and ANT512 optical repeater slave modules depending on transmission distance requirements.
4. How many I/O modules can be installed in ANB11D-225?
The node unit supports installation of up to eight I/O modules depending on system configuration requirements.
5. Why is optical communication used in ANB11D-225?
Optical fiber communication provides better resistance against electromagnetic interference and enables reliable data transmission over longer distances compared with traditional electrical communication.