Yokogawa NFDV161-P00 S2 Digital Input Module

The Yokogawa NFDV161-P00 S2 Digital Input Module is a high-performance input device designed for integration in distributed control systems (DCS) and industrial automation platforms. Belonging to Yokogawa’s reliable I/O module family, it provides precise acquisition of discrete signals from field devices such as switches, sensors, and protective contacts. The S2 version enhances the standard model with increased processing reliability and additional redundancy features, making it suitable for critical applications where downtime or data loss is unacceptable.

This module ensures stable digital signal conversion, noise immunity, and compatibility with Yokogawa’s CENTUM VP and ProSafe-RS systems. It is engineered to maintain high availability and real-time performance in environments that demand uninterrupted operation.

Product Parameters

Product Applications

The NFDV161-P00 S2 is applied across diverse industrial sectors where secure and accurate digital input signal acquisition is critical:

• Process Automation: Capturing field contact signals in oil & gas, petrochemicals, and refining operations.

• Power Plants: Monitoring breaker positions, interlocks, and protection relay status.

• Water Treatment: Supervising pump and valve status across treatment facilities.

• Manufacturing: Detecting machine cycle completion, alarms, and operator commands.

• Safety Systems: Integration with safety instrumented systems (SIS) requiring redundant input handling.

• Transportation & Infrastructure: Signal acquisition in rail, pipeline, and utility monitoring systems.

Product Advantages

• Enhanced Reliability: The S2 version incorporates redundancy and robust fault tolerance, ensuring signal availability even in failure scenarios.

• High Signal Integrity: Advanced optical isolation and configurable filters minimize the effect of industrial noise and transient disturbances.

• Seamless Integration: Fully compatible with Yokogawa’s system architectures, reducing engineering and commissioning time.

• Compact Form Factor: Slim profile allows high-density I/O installation within limited cabinet space.

• Flexible Input Handling: Supports multiple signal types and configurable debounce filters for precise operation.

• Optimized for Critical Applications: Especially suited for safety, interlock, and emergency shutdown systems where signal accuracy cannot be compromised.

FAQ

1. What type of signals can the NFDV161-P00 S2 accept on its input channels?

   It supports 16 digital inputs for dry contacts and 24 VDC signals, adaptable to various field devices.

2. How is electrical isolation achieved between the field input and system bus?

   Optical isolation is used to separate field signals from the system bus, protecting against noise and surges.

3. Can the input filter time be configured to reduce noise interference?

   Yes, filter times (typically 10–50 ms) can be set to suppress noise and contact bounce.

4. How does the S2 version improve fault tolerance compared to the standard P00 version?

   The S2 includes enhanced diagnostics and redundancy support, ensuring higher reliability in safety systems.

5. Is hot-swap replacement supported for this module within the Yokogawa system?

   Yes, the module can be replaced online without shutting down the entire system.

6. What diagnostic functions are available for input channel status monitoring?

   It checks channel validity, detects short circuits, and reports wiring or input faults.

7. How does the module handle redundant configurations in safety systems?

   It supports dual input configurations for critical signals, improving SIL compliance.

8. What is the maximum input delay introduced by the digital filter?

   Up to 50 ms depending on the selected filter setting.

9. Can the module detect open-loop failures or wiring faults in field connections?

   Yes, it can identify wiring disconnections or abnormal field conditions.

10. How does the module integrate with Yokogawa’s CENTUM VP for system-wide diagnostics?

    It communicates diagnostic and operational data directly to CENTUM VP for monitoring.