EC401-51 S3 Yokogawa ESB Bus Coupler

EC401-51 S3 Yokogawa ProSafe-RS ESB Bus Coupler Module

EC401-51 S3 Yokogawa ProSafe-RS ESB Bus Coupler Module

Availability: 20 left in stock

Yokogawa EC401-51 S3 ESB Bus Coupler Module Configured for high-speed deterministic data transfer in ProSafe-RS and CENTUM VP systems, the...

SKU: EC401-51 S3

Manufacturer: Yokogawa
Product No.: EC401-51 S3
Product Type: Bus Coupler Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 400g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa EC401-51 S3 ESB Bus Coupler Module

Configured for high-speed deterministic data transfer in ProSafe-RS and CENTUM VP systems, the Yokogawa EC401-51 S3 (EC401 ESB Bus Coupler Module) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

Code	Option / Specification	Description
EC401	Base Model	ESB Bus Coupler Module
-51	Model Option	Standard type with enhanced ISA G3 conformal coating
S3	Style Code	Style 3 hardware revision

Hardware Specifications

Parameter	Specification
Model	EC401-51 S3
Brand	Yokogawa
Origin	Japan
Weight	0.1 kg (Net), 0.4 kg (Shipping)
Dimensions	2.2 cm x 12.4 cm x 12.6 cm
Operating Temp	-20 to +70 deg C
Power Consumption	0.5 A @ 5 VDC
System Platform	ProSafe-RS SIS / CENTUM VP
Transmission Speed	128 Mbps (I/O bus transmission)
Connection Type	ESB Bus Cable (36-pin interface)
Safety Rating	Certified SIL3 (IEC 61508)
Isolation	Optical isolation via ESB bus interface
Hot-Swap Support	Supported in dual-redundant configurations

Process Control and DCS Connectivity

The EC401-51 S3 interfaces field control nodes across the ESB bus architecture, executing high-speed data synchronization at 128 Mbps. Internal optical isolation blocks cross-talk and field-side electrical surges, preserving signal integrity across 4-20 mA HART loop protocol connections and digital safety circuits. The module supports redundant CPU configurations to guarantee uninterrupted process control and SIL3 safety logic execution during online system maintenance.

Frequently Asked Questions

Q: Can the EC401-51 S3 module be replaced while the control chassis remains powered?

A: Yes, hot-swapping is supported when the host Field Control Unit is configured in a dual-redundant architecture.

Q: How is physical communication established between the module and extension nodes?

A: Interconnection requires a dedicated 36-pin ESB bus cable attached to the front connector port.

Field Installation Guidelines

Align the EC401-51 S3 card vertically with the designated backplane guide rails of the Field Control Unit slot. Slide the module inward until the rear bus pins lock securely into the rack connector. Hand-tighten the top and bottom securing screws to maintain chassis grounding. Ensure the 36-pin ESB communication cable is fully latched and strain-relieved away from high-voltage AC conduits to prevent signal interference.

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.

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Maintenance Manager, USA

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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.

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Engineering Lead, Germany

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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.