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- Warehouse: Spot
- Warranty： 365 days
- Quality: Original module
- Condition： New
- Shipping method: Courier delivery
- Contact person: LI MING
- Contact number: +86 18059884790
- WeChat：18059884790
- E-mail: plc66@qq.com
Yokogawa ANB11D-215/BU2B Optical ESB Bus Node Unit
Product Brief Description
Yokogawa ANB11D-215/BU2B is a dual-redundant optical ESB bus node unit with optical repeater for CENTUM VP DCS AFV30 / AFV40 field control stations. The suffix /BU2B stands for ESB bus connector unit with built-in terminator. It adopts 220–240V AC dual redundant power supply, basic non-explosion-proof type, responsible for long-distance optical ESB bus communication between FCU and remote I/O nodes.
Product Functions
- Realize optical signal transmission and repeater amplification for ESB bus communication
- Dual redundant power input design to improve system continuous operation reliability
- Equipped with /BU2B ESB bus connector and integrated bus terminator
- Bridge communication between Field Control Unit (FCU) and remote I/O node units
- Support 5km optical fiber transmission distance for process control data exchange
- Onboard LED indicators for power status, bus communication and fault diagnosis
- Support hot replacement and online fault alarm for DCS maintenance
Application Scenarios
- CENTUM VP DCS systems in petrochemical, refining and natural gas plants
- Thermal power plants, combined cycle units and boiler control rooms
- Chemical continuous production, pharmaceutical and water treatment control systems
- Long-distance distributed I/O layout for large factory and pipeline stations
- DCS cabinet renovation, spare replacement and system expansion projects
FAQ
Q: What does /BU2B mean?
A: /BU2B is the option code for ESB bus connector unit with terminator, while /BU2A is the connector unit without terminator.
Q: What is the power specification of ANB11D-215?
A: -215 means dual redundant 220–240V AC power supply, basic non-explosion-proof version, 5km optical repeater.
Q: What is the difference between ANB11D and ANB11S?
A: ANB11D supports dual redundant ESB bus; ANB11S is single ESB bus version, they cannot be swapped freely.
Q: Which FCU models can it match?
A: It is designed for AFV30 and AFV40 series field control units of Yokogawa CENTUM VP DCS.
Q: Is this module still in production?
A: It is a mature DCS spare part. New surplus and refurbished units are mainly supplied for existing CENTUM VP system maintenance.
