Yokogawa SDV144-S63 Digital Input Module

The Yokogawa SDV144-S63 is a high-reliability 16-channel Digital Input Module specifically designed for use in Yokogawa’s CENTUM VP and ProSafe-RS control systems. As a crucial part of a Distributed Control System (DCS) or Safety Instrumented System (SIS), this module is responsible for monitoring the status of discrete signals such as limit switches, relay contacts, and other binary input devices in industrial automation environments.

This model is widely appreciated for its robust design, signal isolation, and noise immunity, ensuring accurate and secure signal acquisition even in electrically noisy environments. With 16 isolated input channels, the SDV144-S63 supports 24 V DC nominal input signals and offers built-in diagnostics that continuously monitor signal integrity and module health.

Technical Specifications

Applications

The SDV144-S63 module is suitable for various industrial applications, including:​

• Emergency shutdown systems​

• Burner management systems

• High-integrity alarm systems​

• Process safety applications​

• Safety-critical monitoring and control systems​

Advantages

• High Channel Density: Provides 16 digital input channels in a compact form factor.​

• Robust Design: IP67-rated enclosure ensures protection against dust and water ingress.​

• Wide Operating Temperature Range: Suitable for harsh industrial environments.​

• Ease of Integration: Compatible with Yokogawa’s ProSafe-RS safety instrumented systems.​

• Safety Compliance: SIL 2 certified according to IEC 61508 for use in safety-critical applications.​

Frequently Asked Questions (FAQs)

1. What is the primary function of the SDV144-S63 module?

It monitors contact signals from the field, converting them into digital inputs for processing by Yokogawa’s ProSafe-RS safety instrumented systems.​

2. What type of input signals does the module accept?

The module accepts no-voltage contact signals with ON resistance up to 1 kΩ and OFF resistance of at least 100 kΩ.​

3. What is the input current for each channel?

Each channel draws 6 mA ± 20% when supplied with 24 V DC at 0 Ω input.​

4. What are the power supply requirements?

The module requires an external power supply of 24 V DC ±20% with a current capacity of 200 mA.​

5. What is the maximum permissible input voltage?

The module can withstand instantaneous input voltages up to 30.0 V DC.​

6. What is the input response time?

The maximum input response time is 40 milliseconds.​

7. What is the operating temperature range?

The module operates within a temperature range of -20°C to +70°C.​

8. What are the dimensions and weight of the module?

The module measures 130 x 32.8 x 107.5 mm mm and weighs 0.41 kg.​

9. What types of external connections are supported?

The module supports pressure clamp terminals, MIL cables, and dedicated signal cables (AKB331).​

10. Is the module certified for safety applications?

Yes, it is SIL 2 certified according to IEC 61508, making it suitable for safety-critical applications.​