Product Description
The Yokogawa SEC401-11 is a high-performance S3 (Synchronous Serial Single) Bus Coupler Module designed for the CENTUM VP Distributed Control System (DCS). It functions as the hardware interface for extending S3 bus communication between a Field Control Station (FCS) and associated I/O expansion units.
By enabling deterministic, real-time synchronization across distributed I/O nests, the SEC401-11 ensures minimal latency and stable signal transmission. Its compact form factor supports high-density cabinet installations, while integrated signal conditioning enhances noise immunity in electrically harsh industrial environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SEC401-11 |
| Bus Architecture | S3 (Synchronous Serial Single) |
| Application | I/O Expansion & Bus Extension |
| Power Input | Backplane supplied (24 V DC) |
| Power Consumption | 150 mA @ 5 V DC (internal) |
| Dimensions (W × H × D) | 32 × 106 × 130 mm |
| Weight | 0.22 kg |
| Mounting | FCS I/O module slot |
| Insulation | Galvanic isolation (S3 bus ↔ internal circuitry) |
| Operating Temperature | 0°C to +50°C |
Redundancy & Availability
The SEC401-11 supports dual-module redundant configurations. When installed in pairs:
-
Primary and secondary modules operate in parallel
-
Automatic failover occurs upon primary module fault
-
No loss of control or field data during switchover
-
Supports hot-swapping in redundant FCS setups
Application
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CENTUM VP I/O expansion systems
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Distributed I/O nest integration
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High-availability process automation
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Oil & gas, petrochemical, and power generation facilities
FAQ
Q: What is the difference between the SEC401-11 and older S3 modules?
A: The SEC401-11 features optimized timing protocols tuned for CENTUM VP firmware, delivering improved diagnostics and communication stability compared to legacy S3 versions.
Q: Does this module support hot-swapping?
A: Yes. In redundant FCS configurations, the module can be replaced online without interrupting the S3 control bus.
| Quick Quotes | Receive price & availability FAST from our dedicated customer service team. |
|---|---|
| Delivery | Expedited, Freight, And International Shipping Available. |
| Condition | 100% New with Original Package |
| Payment | We accept American Express, Discover, MasterCard, PayPal, and Visa. Our site is secured by RapidSSL. |
| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
| Q: Is Our Pricing Competitive? |
| A: Yes, we collaborate with over 50 countries worldwide. As a top supplier in China, we offer significant discounts based on market trends. |
| Q: What Is the Warranty Period? |
| A: All our new and original products come with a standard one-year warranty. |
| Q: What Payment Methods Do We Accept? |
| A: We require 100% T/T (Telegraphic Transfer) payment before shipping. For items with a lead time, a 30% deposit is needed upfront, and the remaining 70% is due before shipping. If you have a representative in China, you can arrange an RMB transfer through them. |
| Q: What Shipping Methods Do We Use? |
| A: We primarily use FedEx, DHL, UPS, and BRE for shipping. If you have an account with any of these carriers, you can handle shipping directly. We also offer free shipping to China-based freight forwarders. |
| Q: What Is Our Delivery Time? |
| A: Delivery usually takes 1-3 days after receiving the initial payment. For items with a lead time, shipping will occur according to the specified schedule. |
| Q: How Do We Package the Goods? |
| A: We ensure safe packaging with multiple layers of protection. Products are first placed in their original boxes and sealed with labels. A layer of bubble wrap is then added for collision protection during transit. Finally, the items are packed securely in durable boxes. |
| Q: How Can Customers Contact Us and Request a Quote? |
| A: You can reach out to us via email, WhatsApp, WeChat, Skype, or your preferred communication platform. Contact us with your needs, and we'll provide a prompt, customized quote. |
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