EC401-50 Yokogawa ESB Bus Coupler Module

EC401-50 Yokogawa ProSafe-RS ESB Bus Coupler Module

EC401-50 Yokogawa ProSafe-RS ESB Bus Coupler Module

Availability: 10 left in stock

Yokogawa EC401-50 ESB Bus Coupler Module The Yokogawa EC401-50, also cataloged as the EC401 ESB Bus Coupler Module, operates as...

SKU: EC401-50

Manufacturer: Yokogawa
Product No.: EC401-50
Product Type: Bus Coupler Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 450g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa EC401-50 ESB Bus Coupler Module

The Yokogawa EC401-50, also cataloged as the EC401 ESB Bus Coupler Module, operates as a dedicated hardware component for interfacing field control units with remote I/O node units across CENTUM VP and ProSafe-RS control platforms.

Suffix Breakdown & Model Matrix

Code	Option / Specification	Description
EC401	Base Model	ESB Bus Coupler Module (for N-IO/FIO, 1-Port)
-5	Protection Type	Standard type with no explosion protection
0	Specification Code	Basic type

Hardware Specifications

Parameter	Specification
Model	EC401-50
Brand	Yokogawa
Origin	Japan
Weight	0.45 kg (Net), 2.0 kg (Shipping)
Dimensions	Standard rack-mounted module enclosure
Operating Temp	-20 to +70 deg C
Power Consumption	~1.5 A @ 24 VDC
Communication Bus	ESB Bus (Enhanced Communication Bus)
System Compatibility	CENTUM VP / ProSafe-RS Systems
Isolation	Optical isolation via ESB bus interface
Redundancy	Dual-redundant bus configuration supported
Safety Integrity Level	SIL3 (IEC 61508 compliant in safety architectures)

Process Control and DCS Connectivity

The EC401-50 bus coupler module routes real-time signal frames between central processors and downstream expansion node racks over high-speed ESB bus interfaces. Optical signal transmission paths maintain galvanic isolation between the controller rack and remote node chassis, preventing field electrical noise from entering processing backplane buses. The module seamlessly handles data multiplexing for 4-20 mA HART loop protocol instruments and safety-critical I/O cards, ensuring uninterrupted determinism across distributed node topologies.

Frequently Asked Questions

Q: How does the EC401-50 module handle communication fault detection on the ESB bus?

A: The module performs hardware self-checks and frame error detection via built-in diagnostic routines, driving dedicated status LEDs and signaling the controller upon data transmission degradation.

Q: Can two EC401-50 modules be installed in a single controller chassis for bus redundancy?

A: Yes, dual EC401-50 modules mount into primary and secondary bus slots of the field control unit to establish seamless line-redundant ESB bus paths.

Field Installation Guidelines

Mount the EC401-50 coupler module into its assigned slot on the field control unit rack, ensuring the rear backplane connectors align before pressing the module firmly home. Secure top and bottom retaining screws to establish structural retention and electrical ground continuity to the rack frame. Connect dedicated ESB bus cables between the front interface ports and node units, ensuring locking latches click into place. Maintain appropriate bending radii for high-speed signal cables and keep interface wiring separated from high-voltage AC lines to prevent noise induction.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.