YOKOGAWA EB401-10 is an
ER Bus Interface Master Module designed for industrial communication systems. It belongs to Yokogawa’s
EB401 series, which serves as a critical component in distributed control systems (DCS) such as
CENTUM VP. The
-10 suffix denotes a
standard configuration without explosion-proof certification, optimized for high-reliability signal transmission over the
ER (Ethernet Remote) Bus protocol.
The EB401-10 acts as a communication bridge between ESB Bus Node Units (local nodes) or Compact Field Control Units (FCUs) and ER Bus Node Units (remote nodes), enabling seamless data exchange in industrial automation environments. Key functionalities include:
ER Bus Communication
- 10 Mbps Data Transfer: Supports the ER Bus protocol over 10Base2 Ethernet (BNC connector), ensuring real-time data transmission with a maximum distance of 185 meters
- Dual Redundancy: Enables redundant configuration by installing two modules in the ESB Bus Node Unit or FCU, ensuring continuous operation even during module failure
Flexible Integration
- Modular Design: Installs in Yokogawa’s ANB10S/D (ESB Bus Node Unit) or AFF50S/D (FCU) racks, compatible with mixed I/O configurations.
- Hot-Swap Capability: Allows module replacement without system downtime, critical for maintenance in continuous processes.
Environmental Robustness
- Wide Temperature Range: Operates reliably from -20°C to 60°C, suitable for harsh industrial environments
- EMC Compliance: Meets EN 61000-6-2 (industrial immunity) and EN 61000-6-4 (emission) standards, ensuring stability in noisy factory floors .
| Parameter | Typical Value |
|---|
| Communication Protocol | ER Bus (10Base2 Ethernet) |
| Connector | BNC (1 port) |
| Transmission Speed | 10 Mbps |
| Max. Transmission Distance | 185 meters (with YCB141 cable) |
| Power Supply | 24V DC ±20% |
| Current Consumption | 0.7 A |
| Weight | ~0.3 kg |
| Operating Temperature | -20°C to 60°C |
| Dimensions | 150 mm (W) × 100 mm (L) × 50 mm (H) |
The EB401-10 is widely deployed in industries requiring high-speed, reliable communication between control systems and field devices:
Process Automation
- Chemical Plants: Connects FCUs to remote valve actuators and temperature sensors in reactor systems.
- Oil & Gas: Enables real-time monitoring of wellhead pressure data from offshore platforms to onshore control rooms.
Energy Management
- Power Generation: Integrates turbine control systems with distributed I/O modules for grid stability.
- Renewables: Manages data flow between solar farm inverters and centralized monitoring stations.
Manufacturing
- Pharmaceuticals: Ensures synchronization between sterile filling machines and quality control systems.
- Food & Beverage: Coordinates conveyor belt networks with batch processing controllers.
Building Automation
- HVAC Systems: Links central building management systems (BMS) to decentralized air handling units.
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