Product Details
The YOKOGAWA EC401-10 S3, also cataloged as the EC401-10 ESB Bus Coupler Module, operates as a dedicated hardware component for high-speed inter-node communication between a Field Control Unit (FCU) and Node Units within YOKOGAWA CENTUM DCS networks. The module interfaces via a dual-redundant ESB bus architecture running at a transmission speed of 128 Mbps over a maximum cable distance of 10 m.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | EC401-10 S3 / EC401-10 |
| Brand | YOKOGAWA |
| Origin | Japan |
| Weight | 0.24 kg |
| Dimensions | 32.8 x 129.5 x 130 mm |
| Module Type | ESB Bus Coupler Module |
| Transmission Speed | 128 Mbps |
| Maximum Transmission Distance | 10 m |
| Redundancy Support | Dual-redundant ESB bus configuration |
| Interfacing Target | Connects Field Control Unit (FCU) to ESB Bus Node Unit |
ESB Bus Architecture and Field Device Data Transmission
The EC401-10 S3 module establishes a 128 Mbps point-to-point physical interface connecting Field Control Units to expansion I/O racks across the local ESB bus backbone. This communication channel transfers digitized process input and output records, including 4-20 mA HART loop protocol dynamic variables and FOUNDATION Fieldbus telemetry. By supporting dual-redundant bus paths, the card maintains deterministic data transmission without message dropouts in the event of a single cable path fault.
Frequently Asked Questions
Q: What is the maximum transmission distance supported by the EC401-10 S3 module?
A: The module supports a maximum ESB bus cable transmission distance of 10 m between the Field Control Unit (FCU) and the destination Node Unit.
Q: What data transfer rate is executed over the ESB bus interface?
A: The EC401-10 S3 operates at a fixed communication speed of 128 Mbps across the ESB bus.
Q: How does the EC401-10 S3 handle network communication redundancy?
A: The module supports dual-redundant ESB bus configurations, allowing primary and secondary bus lines to maintain deterministic data flow if a signal path is disrupted.
Field Installation Guidelines
De-energize system cabinet power before inserting or removing the EC401-10 S3 module from the Field Control Unit slot. Wear a grounded electrostatic discharge (ESD) wrist strap during handling to prevent physical damage to onboard semiconductor components. Mount the card vertically into its designated rack slot and tighten the top and bottom securing screws to establish chassis frame ground continuity. Ensure dedicated ESB bus cables are used, maintaining a total segment length not exceeding 10 m. Observe minimum bend radius limits for the communication cables and route them away from high-voltage AC lines to prevent electromagnetic coupling.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Human-Machine Interface Design: Essential Guide to HMI Selection, Visualization, and Control System Integration
Human-Machine Interfaces (HMIs) serve as the primary operational window into complex industrial automation systems. Modern HMIs convert raw machine data into clear graphical displays, enabling operators to oversee entire manufacturing processes in real time. Instead of relying on physical control panels full of hardwired switches, engineers program interactive screens using intuitive graphics, dynamic color coding, and responsive touch interfaces. Over my 15 years in control systems engineering, I have observed HMIs transform from basic display screens into sophisticated command centers that drive operational efficiency across DCS and PLC environments.
Understanding Safety Relays in Industrial Automation: Architecture, Operation, and Functional Safety
Standard electromechanical relays provide basic electrical isolation between low-voltage control circuits and high-power output loads. A traditional switching relay features a magnetic coil driving mechanical Common (COM), Normally-Open (NO), and Normally-Closed (NC) contacts. However, standard relays pose severe functional risks when deployed in critical safety interlock circuits. High current inrush or mechanical wear can weld contacts together permanently. If contact welding occurs in an emergency stop circuit, pressing the button fails to halt hazardous machinery movements. Consequently, global functional safety standards prohibit standard relays for critical machine guarding functions.
Mastering Wire Identification in Industrial Automation: The Power of Ferrules and Cross-Ferruling
Proper wire labeling forms the cornerstone of reliable control system installation and long-term maintenance. In complex industrial automation environments, technicians terminate thousands of conductor ends inside control panels, marshalling racks, and field junction boxes. Ferrules serve as individual tube-shaped sleeve markers slipped onto conductors before final termination. While technicians historically relied on pre-printed individual letter rings, modern control panel builders utilize automated ferrule printing machines. These thermal-transfer printers generate durable, single-sleeve heat-shrink tags directly matching approved wiring schematics, significantly accelerating cabinet assembly workflows.