The Yokogawa NFAI143-S50 S1 Analog Input Module is a high-performance module designed for precise signal acquisition and monitoring in distributed control systems (DCS) and safety instrumented systems (SIS). It converts analog signals from field devices into digital data for real-time monitoring, control, and analysis.

With support for 16 analog input channels, this module handles standard 4-20 mA signals and offers high signal integrity, noise immunity, and advanced diagnostics. It is optimized for integration with Yokogawa CENTUM VP and ProSafe-RS systems, making it suitable for demanding industrial applications where accuracy, reliability, and safety are paramount.

Product Parameters

Product Applications

The NFAI143-S50 S1 module is widely applied in industrial sectors where reliable analog data acquisition is critical. Typical applications include:

• Oil and Gas Industry: Monitoring pressure, temperature, and flow for production and refining processes.

• Chemical and Petrochemical: Process control, alarms, and safety interlocks.

• Power Generation: Measurement of critical plant parameters in thermal and nuclear plants.

• Water and Wastewater Management: Monitoring levels, flow, and chemical dosing.

• Pharmaceutical Industry: Ensuring precise control for manufacturing and compliance.

• Pulp and Paper Industry: Continuous monitoring of process parameters.

Product Advantages

• High Accuracy & Reliability: 16-bit A/D conversion ensures precise measurements.

• Robust Electrical Isolation: Protects channels and system bus from electrical disturbances.

• Advanced Diagnostics: Includes open-circuit detection and self-checks for reliability.

• Compact & Modular Design: Optimizes space in control panels and simplifies installation.

• Seamless Integration: Fully compatible with CENTUM VP and ProSafe-RS systems.

• Noise Suppression: Built-in filtering ensures stable analog signal acquisition.

• Industrial Environment Ready: Reliable performance in wide temperature and humidity ranges.

FAQ

1. What types of analog signals does the NFAI143-S50 S1 support?

   It supports 4-20 mA DC analog signals from field instruments.

2. How many analog input channels are available?

   The module provides 16 channels for simultaneous measurements.

3. Is electrical isolation provided for each channel?

   Yes, all channels have optical isolation to protect the system bus.

4. What is the resolution of the analog-to-digital conversion?

   The module uses 16-bit A/D conversion for precise readings.

5. What diagnostic functions are included?

   It includes open-circuit detection, range check, and self-diagnostics.

6. What is the update time per channel?

   Approximately 50 milliseconds for each input channel.

7. Can this module be used in redundant configurations?

   Yes, it is compatible with redundant and high-integrity control systems.

8. Does it support filtering of analog signals?

   Yes, configurable filtering is available to reduce signal noise.

9. Which Yokogawa systems are compatible with this module?

   Fully compatible with CENTUM VP and ProSafe-RS systems.

10. Is it suitable for process safety applications?

    Yes, it meets requirements for safety instrumented systems.