SEC401-11 S1 Yokogawa ESB Bus Coupler Module

ESB Bus Coupler Module | Yokogawa SEC401-11 S1

ESB Bus Coupler Module | Yokogawa SEC401-11 S1

Availability: 20 left in stock

Yokogawa SEC401-11 S1 ESB Bus Coupler Modules The Yokogawa SEC401-11 S1, also cataloged as the SEC401 Communication Interface Module, operates...

SKU: SEC401-11 S1

Manufacturer: Yokogawa
Product No.: SEC401-11 S1
Product Type: Communication Interface Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 350g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Yokogawa SEC401-11 S1 ESB Bus Coupler Modules

The Yokogawa SEC401-11 S1, also cataloged as the SEC401 Communication Interface Module, operates as a dedicated hardware component for deterministic inter-rack bus communication execution within CENTUM VP and ProSafe-RS systems. The unit links system nodes over dual redundant Ethernet communication paths, transferring high-speed data packets across backplane architectures. Featuring integrated hardware diagnostic indicators and 1500 VAC dielectric isolation, the module maintains real-time control network stability across distributed automation platforms.

Hardware Specifications

Parameter	Specification
Model	SEC401-11 S1
Brand	Yokogawa
Origin	Japan
Weight	0.35 - 0.40 kg (1.5 kg shipping weight)
Dimensions	Standard Yokogawa I/O rack slot footprint
Operating Temp	-20 to 60 deg C
Power Consumption	~400 mA at 5 VDC (supplied from system backplane)
Protocols	Vnet/IP, Ethernet TCP/IP
Bus Ports	Dual redundant Ethernet ports (RJ-45)
Data Rate	100 Mbps full duplex
Operating Humidity	10 to 95% RH (non-condensing)
Isolation Voltage	1500 VAC between communication and system logic for 1 minute

Channel-to-Channel Isolation and DCS Signal Integrity

Yokogawa distributed control platforms depend on physical galvanic isolation to protect central backplane processors from transmission transients and ground potential loops. The SEC401-11 S1 incorporates 1500 VAC dielectric isolation between external communication interfaces and internal system electronics. When operating in hybrid enclosures alongside 4-20 mA HART loop instruments, this high withstand isolation suppresses common-mode noise and prevents signal degradation across redundant bus lines.

Frequently Asked Questions

Q: Is the SEC401-11 S1 active in current production, or does a direct replacement exist? A: The SEC401-11 S1 has reached end-of-production status, and Yokogawa designates the SEC401-51 ESB Bus Coupler Module as its functional replacement.

Q: How does the module execute failover during an active communication port fault? A: The hardware employs dual redundant RJ-45 Ethernet ports to switch network traffic to the secondary channel automatically without disrupting DCS process execution.

Q: How does the SEC401-11 S1 draw operating electrical power? A: The module draws power directly through the system rack backplane, consuming approximately 400 mA from the internal 5 VDC power bus.

Field Installation Guidelines

Power off the target system rack or verify dual-redundant partner module status before inserting or removing the unit from the backplane slot.
Align the module rear connector carefully with the backplane guide rails to prevent pin deformation during physical insertion.
Plug network cables securely into both RJ-45 redundant bus ports until the retaining clips engage firmly.
Route communication cables through isolated wiring ducts separated from high-voltage AC lines to prevent electro-magnetic noise coupling.
Connect cable shield drain wires directly to the local cabinet earthing bus bar using short, low-impedance ground connections.

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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.