Yokogawa ADV161 Digital Input Module

The Yokogawa ADV161 Digital Input Module is a high-reliability, multi-channel input unit designed to capture discrete signals from field devices such as push buttons, switches, relays, and proximity sensors. As a part of Yokogawa’s I/O subsystem in the CENTUM VP and CENTUM CS 3000 process automation platforms, this module offers high-density, noise-resistant, optically isolated input capabilities.

The ADV161 is engineered for use in mission-critical industrial environments, where accuracy, safety, and long-term stability are non-negotiable. Supporting a wide range of industrial voltages and compatible with fail-safe system configurations, this module is especially suited for real-time monitoring, interlock management, and process control in large-scale manufacturing and process industries.

Product Specifications

Product Applications

The ADV161 module is widely applied in scenarios where digital signal acquisition and safety interlocking are essential. Below are typical application areas:

• Power Generation – Monitoring of circuit breaker positions, emergency stop signals, and protection interlocks.

• Oil & Gas – Tracks discrete inputs from valve feedback, flow switches, and wellhead equipment.

• Chemical Processing – Integrates with control room interlocks, tank level switches, and alarm systems.

• Water & Wastewater Treatment – Captures pump state, motor protection feedback, and gate interlock status.

• Steel & Cement Plants – Collects input from heavy machinery switches, hoist controllers, and conveyors.

• Food & Beverage Industry – Handles feedback from packaging lines, safety doors, and level switches.

Product Advantages

• Compact, High-Density Design: Offers 16 inputs in a small form factor, saving cabinet space.

• Robust Isolation: Optical isolation improves signal integrity and reduces system risk from voltage surges.

• Fast Response Time: Input delay is minimal, enabling real-time processing and safety response.

• Broad Compatibility: Seamless integration with Yokogawa’s CENTUM VP, CS 3000, and ProSafe-RS systems.

• Flexible Input Handling: Accepts both dry contacts and standard 24 V DC signals.

• Long-Term Reliability: Designed for 24/7 operations in industrial conditions without degradation.

• Low Power Consumption: Efficient performance with low heat generation.

• Comprehensive Diagnostics: Built-in functions assist with error tracking and preventive maintenance.

Frequently Asked Questions (FAQ)

1. What kind of signals does the ADV161 support?

   It supports 24 V DC and dry contact (voltage-free) digital inputs.

2. How many channels does the module have?

   The ADV161 has 16 optically isolated digital input channels.

3. Is the ADV161 compatible with Yokogawa CENTUM VP?

   Yes, it is fully compatible with CENTUM VP, CS 3000, and ProSafe-RS platforms.

4. What is the isolation method used?

   Optical isolation is used for each input to protect the system and reduce interference.

5. What is the typical input current?

   Each channel typically consumes 6 to 8 mA during operation.

6. Can it operate in high humidity environments?

   Yes, the module can handle up to 95% relative humidity, non-condensing.

7. Is this module suitable for safety instrumented systems?

   Yes, its design supports integration into safety-critical applications.

8. How is the module powered?

   It receives power directly from the baseplate—no external supply needed.

9. Does the module offer diagnostics?

   Yes, it includes built-in diagnostic and fault detection capabilities.

10. Can this module be used in hazardous environments?

    Yes, the ADV161 carries ATEX, FM, and CSA certifications for such use cases.