Product Description
The EB511 is a high-reliability bus interface module engineered for the Yokogawa Electric Corporation CENTUM CS, CENTUM CS 3000, and CENTUM VP Distributed Control Systems (DCS).
This module functions as a critical gateway for the ER Bus (Extended Remote Bus) communication network, enabling deterministic and high-speed data exchange between the Field Control Station (FCS) and remote I/O nodes.
The EB511 utilizes a 10BASE-2 IEEE 802.3 coaxial physical layer, providing stable network synchronization across distributed control architectures. It is widely used in industrial plants that require remote I/O expansion while maintaining strict process timing determinism.
The module also supports protocol pass-through integration for field instrumentation protocols such as HART, PROFIBUS, and FOUNDATION Fieldbus, which are handled through the I/O subsystem and DCS communication backbone.
Detailed Technical Specifications
| Parameter | Specification |
|---|---|
| Model Identification | EB511 |
| Module Function | ER Bus (Extended Remote Bus) Interface |
| System Compatibility | CENTUM CS / CS 3000 / CENTUM VP |
| Bus Interface | Dedicated ER Bus connector |
| Protocol Pass-through | HART, PROFIBUS, FOUNDATION Fieldbus |
| Power Supply | Backplane powered (5 V DC internal) |
| Current Consumption | 0.5 A |
| Isolation Method | Transformer coupling |
| Operating Temperature | 0°C to +50°C |
| Dimensions | 25 mm × 127 mm × 127 mm |
| Weight | 0.3 kg |
Network Implementation and Topology
The EB511 is typically installed within a CPU node or bus converter unit. It extends control network connectivity using coaxial 10BASE-2 cabling to reach distant I/O cabinets and field control nodes.
In redundant architectures, two EB511 modules are deployed to provide fault-tolerant communication paths. If one communication path or transceiver fails, the system automatically switches to the backup path without interrupting process I/O communication.
This ER Bus architecture is particularly useful in legacy plant modernization projects where existing coaxial infrastructure must be preserved while improving control system reliability.
FAQ
Does the EB511 support Vnet/IP directly?
No. The EB511 is designed for ER Bus coaxial communication. For Vnet/IP-based networks in modern systems, interface modules such as the VI451 or similar Vnet/IP gateway modules are required.
What is the maximum cable distance for 10BASE-2 ER Bus?
The maximum standard segment length is 185 meters per 10BASE-2 segment. For longer distances, bus repeaters or optical fiber converters are required.
Can this module be hot-swapped?
Yes. In redundant ER Bus configurations, the EB511 can be replaced while the system is running, provided the secondary communication path remains operational.
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| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
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| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
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| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
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| A: All our new and original products come with a standard one-year warranty. |
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