Product Description
The SDV544-S23 is a high-reliability safety digital output module engineered for the Yokogawa ProSafe-RS Safety Instrumented System (SIS). It provides 16 isolated output channels for actuating critical field devices such as solenoid valves, warning beacons, and relay coils.
Certified for SIL3 safety applications, the SDV544-S23 ensures that final control elements transition reliably to their defined safe state during emergency conditions. It is a core execution element within safety-critical shutdown and mitigation logic.
The module incorporates advanced pulse-test diagnostics, allowing continuous verification of each output circuit’s operational integrity. This testing detects internal hardware failures and field-side wiring faults—including short circuits and open loops—without interrupting the energized load. Its ruggedized design makes it well suited for harsh industrial safety environments.
Technical Specifications
| Parameter | Specification |
|---|---|
| Number of Outputs | 16 channels, module-to-channel isolation |
| Rated Output Voltage | 24 V DC (external supply required) |
| Output Current | Max. 0.6 A per channel |
| Total Module Load | Max. 8 A aggregate |
| Safety Integrity Level | SIL3 (IEC 61508 compliant) |
| Diagnostic Functions | Pulse testing, short-circuit and open-loop detection |
| Response Time | ≤ 40 ms (logic command to output transition) |
| Power Consumption | 450 mA @ 5 V DC / 150 mA @ 24 V DC |
| Dimensions (W × H × D) | 32 × 127 × 127 mm |
| Weight | 0.4 kg |
Application Scenarios
The SDV544-S23 is widely deployed in high-hazard process industries, including:
-
Oil & gas refineries
-
Chemical and petrochemical plants
-
Nuclear and conventional power generation facilities
It functions as the final actuation layer for Emergency Shutdown (ESD) and Fire & Gas (F&G) systems, where deterministic and fault-tolerant output behavior is mandatory.
Online Replacement Capability
Yes. When installed in a dual-redundant ProSafe-RS configuration, the SDV544-S23 supports hot swapping. One module can be replaced online while the redundant partner continues to control the safety outputs, ensuring no interruption to the safety instrumented function.
| 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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