Yokogawa SEC402-51 ESB Bus Coupler Module
$264.00
$378.00
Description
Overview
The Yokogawa SEC402‑51 is a high-performance ESB Bus Coupler Module designed for CENTUM VP and CENTUM CS 3000 Distributed Control Systems. It serves as a communication bridge between the Field Control Unit (FCU) and remote I/O nodes, providing deterministic, high-speed, and reliable data transfer. Engineered for long-term industrial operation, this module is ideal for petrochemical, power generation, refining, and other mission-critical environments.
Key Features
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Acts as the master-side bus coupler between FCU and remote I/O stations
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Supports multi-drop ESB network topologies
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Built-in communication health monitoring and diagnostics
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Redundant dual-coupler configuration support for enhanced reliability
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Low-power design suitable for continuous operation
Technical Specifications
General Characteristics
| Parameter | Specification |
|---|---|
| Model | SEC402‑51 |
| Type | ESB Bus Coupler Module |
| System Compatibility | CENTUM VP / CENTUM CS 3000 |
| Subsystem | FIO (Field I/O) |
| Function | Provides ESB bus communication between FCU and remote I/O |
Communication Characteristics
| Parameter | Specification |
|---|---|
| Bus Type | ESB (Extension Serial Bus) |
| Communication Role | Master-side bus coupler |
| Data Transmission | High-speed, deterministic serial communication |
| Supported Topology | Multi-drop ESB remote I/O architecture |
| Redundancy | Supports dual-coupler redundant configuration |
| Error Handling | Built-in diagnostics and communication health monitoring |
Electrical Characteristics
| Parameter | Specification |
|---|---|
| Power Supply | Provided via FCU baseplate |
| Power Consumption | Low-power design |
| Isolation | Electrical isolation between ESB bus and internal circuits |
Mechanical Characteristics
| Parameter | Specification |
|---|---|
| Mounting | Plug-in installation on FCU baseplate |
| Weight | 0.3 kg |
| Connector Type | ESB bus connector for remote I/O link |
Environmental Ratings
| Parameter | Specification |
|---|---|
| Operating Temperature | –20 °C to +55 °C (cabinet dependent) |
| Humidity | 5–95% RH, non-condensing |
| EMC Performance | Industrial-grade noise immunity |
Applications
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Process control in petrochemical plants
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Power generation and energy management systems
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Refining and chemical production lines
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Any industrial setup requiring high-speed remote I/O communication with redundancy
FAQ (Frequently Asked Questions)
Q: Which remote I/O modules are compatible with SEC402‑51?
A: Compatible with all ESB remote I/O modules in CENTUM VP and CS 3000 systems.
Q: Does this module support redundancy?
A: Yes, dual-coupler redundant configurations are supported for higher reliability.
Q: What are the operating temperature and humidity ranges?
A: –20 °C to +55 °C, with 5–95% RH non-condensing.
Q: Is the module power-efficient?
A: Yes, it features a low-power design powered via the FCU baseplate.
Q: Does the module have diagnostic functions?
A: Yes, it includes built-in communication health monitoring to quickly detect bus faults.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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