EC401-11 S2
EC401-11 S2 is a one-port ESB bus coupler for compatible Yokogawa CENTUM field-control and node configurations. The S2 style must be checked against processor and Sequence of Events Manager requirements.
Scope note: EC401-11 S2 is supplied as one-port esb bus coupler module; terminal hardware, cables and system engineering are selected or verified separately.
Product Condition
Original New with One Year WarrantyParts Available
In Stock and Same Day ShippingDelivery Mode
Shipping via DHL Fedex or UPS etcEmail:
sales1@amikon.cnWhatsapp/Mob:
+86 18150117685One-Port ESB Bus Coupler Module
EC401-11 S2 is a one-port ESB bus coupler for compatible Yokogawa CENTUM field-control and node configurations. The S2 style must be checked against processor and Sequence of Events Manager requirements.
Application guidance: Existing ESB node links in compatible CENTUM FIO systems. Single or redundant ESB bus configurations. Maintenance with processor/style compatibility checked.
Ordering note: Reproduce EC401-11 S2 exactly and confirm the installed hardware, terminal arrangement, project release and site requirements.
| Manufacturer | Yokogawa Electric Corporation |
|---|---|
| Full part number | EC401-11 S2 |
| Function | ESB bus coupling |
| Interface | One ESB port |
| Transmission | 128 Mbps I/O data |
| Bus length | 10 m maximum |
| Connectable nodes | Up to nine; limited by FCS database |
| Style | S2 |
| CP471 compatibility | Requires EC401 S3 or later; S2 does not meet this requirement |
| SEM style requirement | S2 or later |
Before EC401-11 S2 replacement, retain the approved configuration and follow the applicable host maintenance and commissioning procedure. Verify the complete hardware and software combination before migration.
EC401-11 S2 couples the field control unit to ESB bus node units through one ESB port.
For the documented field-control units, EC401-11 S2 uses slot 7 for single ESB operation and slots 7 and 8 as a pair for redundant operation.
EC401-11 S2 belongs to the EC401 family rated for up to nine nodes, subject to the installed FCS database and system limits.
Check EC401-11 S2 against the ten-metre ESB limit and the dedicated YCB301 cable arrangement; optical extensions require their own documented repeater configuration.
EC401-11 S2 does not meet the official CP471 requirement: Yokogawa specifies EC401 Style S3 or later for CP471.
EC401-11 S2 meets the published EC401 Style 2-or-later threshold for SEM with Vnet/IP; verify the remaining system and software requirements.
Include EC401-11 S2, a tag photo, processor model, FCS software release, node count and redundancy details; confirm the legacy suffix against the installed unit.
Send the exact EC401-11 S2 nameplate, quantity, installed Yokogawa system, terminal hardware, destination and clear photos. Availability, condition and compatibility will be confirmed before quotation.
Verify the cited document revision and its applicability to the complete model, style and installed assembly. Family-level documentation does not establish interchangeability for an unlisted suffix.
Visit us
32D Guomao Building, No.388, Hubin South Road, Siming District
Please read on, stay posted, subscribe, and we welcome you to tell us what you think.
Disclaimer : Salesplcauto sells new and surplus products and develops channels for purchasing such products. This website has not been approved or recognized by any of the listed manufacturers or trademarks. Salesplcauto is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
Copyright @2026 SalesPlc Limited. Sitemap
/ Blog
/ XML
/ Terms And Conditions
/ Privacy Policy
Network Supported
About Us
Reliable Industrial Automation Parts, Global Supply Support SALES PLC works with a broad network of qualified suppliers to provide industrial automation components that meet our customers’ requirements for quality, availability, price, and delivery time. Our product portfolio covers PLC, DCS, HMI, control systems, safety systems, drives, communication modules, and other critical spare parts from leading brands, including Siemens, Emerson, Invensys Triconex, HIMA, GE, ABB, Honeywell, and Bently Nevada. More Than Products — Complete Supply Solutions Our strength goes beyond product sourcing. We work closely with end users, system integrators, maintenance teams, and industrial partners to identify suitable replacement parts and practical procurement solutions. Through integrated purchasing and online support, customers can send inquiries and place orders throughout the year. Our experienced team responds quickly and helps reduce downtime caused by unavailable or obsolete equipment. Our Team Our experienced team brings together product specialists, sourcing professionals, sales consultants, and customer service staff. We work together to provide clear communication and dependable support at every stage of the order. Growing Together for More Than 20 Years For more than 20 years, SALES PLC has continued to grow with the support and trust of customers, suppliers, and business partners around the world. Every project, inquiry, and partnership has helped us improve our service. Looking ahead, we remain committed to providing dependable products, responsive communication, and professional industrial automation solutions. Thank you to every customer and partner who has supported our journey. We look forward to building a stronger and more successful future together. Sustainable Partnerships SALES PLC believes in building long-term, mutually beneficial relationships with customers and suppliers. We focus on honest communication, responsible sourcing, continuous improvement, and reliable service. As industrial technology continues to evolve, we keep expanding our product knowledge and supplier network to support new systems, legacy equipment, and replacement-part requirements. Contact SALES PLC Our team is available during working hours to answer your questions, check product availability, and prepare a quotation.
Where to Find Us
32D Guomao Building, No.388, Hubin South Road, Siming District
+86 18150117685
sales1@amikon.cn
Follow Us
