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Yokogawa ADV161-P00 S2 digital input module: high-precision signal acquisition for industrial control

June 13,2025

Introduction

In industrial control systems, accurate acquisition and real-time response of digital signals are the key to ensuring stable operation. As an important component of modern automation architecture, Yokogawa ADV161-P00 S2 digital input module is widely integrated in CENTUM VP distributed control system (DCS). It has excellent anti-interference ability, reliable channel isolation and high-speed signal response. It is designed for critical process control scenarios, especially for industries with strict requirements on equipment stability and continuous system operation.

 

High-performance digital input design

The ADV161-P00 S2 module is equipped with 16 opto-isolated input channels, which can stably acquire switch signals (such as on/off status). It supports 24 VDC nominal input voltage (voltage range is 18–32 VDC) and is compatible with various field devices, including limit switches, push button switches, proximity sensors, and dry contact signal sources.

 

The main technical parameters are as follows:

Number of channels: 16 channels per module

Input type: voltage input (supports source and drain logic)

Signal form: supports both dry contact and open collector

Isolation characteristics: provides electrical isolation between channels and between channels and ground

Redundancy support: redundant configuration can be achieved to improve system reliability

 

Hot-swap capability: modules can be replaced without stopping the system

Adopting optoelectronic isolation technology, it greatly improves the ability to resist electromagnetic interference, effectively prevents damage caused by signal distortion and electrical transients, and ensures the stability and accuracy of data acquisition.

 

High integration with CENTUM VP system

ADV161-P00 S2 is suitable for Yokogawa's N-IO network module architecture and seamlessly connects to the CENTUM VP platform. The module communicates through the control station (FCS) and can be configured, monitored and diagnosed on a unified engineering software platform.

Supporting hot-swap characteristics allows maintenance personnel to replace modules without stopping the system, which has extremely high practical value for industries that require uninterrupted operation such as oil and gas, chemicals, electricity and pharmaceuticals.

In addition, the module has powerful diagnostic capabilities, supporting real-time monitoring of input status, identification of wiring faults, and detection of module operating status, thereby significantly improving maintenance efficiency and reducing system downtime.

 

Wide range of industrial application scenarios

ADV161-P00 S2 digital input module is widely used in various industrial control occasions that require high-reliability digital input. Typical applications include:

Monitoring of safety interlocks and emergency stop circuits

Tracking of equipment operating status in MCC motor control centers

Connecting to relay or PLC output interface

Position signal detection of valves and actuators

Signal input of environmental alarm and safety monitoring system

Because it supports both source and sink logic inputs, the module can be easily adapted to legacy systems or modern automation platforms. In addition, its compact design also helps save space inside the distribution cabinet and improve wiring and maintenance efficiency.

 

Conclusion

Yokogawa ADV161-P00 S2 digital input module provides a stable and reliable input signal acquisition solution for high-demand industrial automation systems. Its deep integration with the CENTUM VP platform, as well as its advantages such as optical isolation, channel redundancy and hot swap, make it the best choice for improving the reliability and maintainability of control systems. With its precise data collection capabilities and flexible deployment methods, this module plays a vital role in promoting the efficient operation and stable development of automation systems.

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