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Yokogawa ANB11D-225/BU2B CENTUM Bus Node Unit
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- Part Number: ANB11D-225/BU2B
- Brand: Yokogawa
- Type: Communication Modules
- Dimensions: 3.3x10.7x13cm
- Country of Origin: Japan
- Barcode: 8537101190
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Additional Specifications
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Tags:
Communication Modules
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Yokogawa CENTUM
Product Description
The Yokogawa ANB11D-225/BU2B, also cataloged as the ANB11D-225/BU2B Node Unit for Dual-Redundant ESB Bus with Optical Repeater, operates as a dedicated hardware component for high-speed data exchange and optical communication extension within Yokogawa industrial automation platforms.
Suffix Breakdown & Model Matrix
| Suffix Segment | Parameter Designation | Description & Configuration |
|---|---|---|
| ANB11D | Base Model | Node Unit for Dual-Redundant ESB Bus with Optical Repeater |
| 2 | Power Supply / Distance | Dual-redundant power supply configuration supporting a 5 km optical repeater link |
| 2 | Power Input | 220-240 V AC power supply input range |
| 5 | Environmental Rating | Basic type model with no explosion protection classification |
| BU2B | Connector Suffix | Connector unit equipped with a terminator for the ESB Bus |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | ANB11D-225/BU2B |
| Brand | Yokogawa |
| Origin | Global Manufacturing Facility |
| Weight | 12 kg |
| Dimensions | Standard Yokogawa node unit form factor |
| Operating Temp | Standard industrial cabinet range |
| Power Supply | 220-240 V AC dual-redundant power configuration |
| Communication Interface | Dual-redundant ESB bus with 5 km optical repeater support |
| Onboard Elements | Connector unit with ESB bus terminator |
4-20 mA HART Loop Protocol and Channel Isolation
The node unit manages process signal routing through robust channel isolation circuitry, protecting internal backplane communications from ground loops and electrical transients. FOUNDATION Fieldbus and Profibus PA connectivity frameworks operate seamlessly across the broader control architecture, while cold junction compensation (CJC) maintains thermal equilibrium for associated analog terminations. 4-20 mA HART loop protocol compatibility ensures reliable transmission of multi-variable field instrument data without signal attenuation.
Frequently Asked Questions
Q: What is the primary function of the ANB11D-225/BU2B node unit?
A: It serves as a dual-redundant ESB bus node unit equipped with an optical repeater supporting up to 5 km communication distances.
Q: What type of power supply does this specific model configuration utilize?
A: It utilizes a dual-redundant 220-240 V AC power supply configuration.
Q: Can this node unit be replaced while the control network is operational?
A: Replacement procedures must adhere to Yokogawa system safety guidelines, ensuring power isolation and bus redundancy protocols are maintained to avoid network interruption.
Field Installation Guidelines
- Mount the node unit securely into the designated industrial cabinet using approved mechanical mounting brackets and clearance spacing.
- Verify that all 220-240 V AC power feeds are locked out and tested for zero energy state prior to wiring connections.
- Connect the dual-redundant optical cables and ESB bus communication lines carefully, ensuring the BU2B terminator is correctly fitted to the bus end.
- Check power status indicators and verify optical link signal quality using engineering software prior to system re-energization.
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