Yokogawa AAI841-H00/CCC01 Analog I/O Module

The Yokogawa AAI841-H00/CCC01 Analog I/O Module is a high-performance analog input/output solution designed for integration into Yokogawa’s CENTUM and ProSafe-RS control systems. This module is part of Yokogawa’s highly reliable and field-proven I/O architecture, specifically engineered to deliver accurate, stable, and noise-resistant signal processing in mission-critical industrial environments.

Built on decades of Yokogawa’s expertise in process automation, the AAI841-H00/CCC01 is capable of interfacing with a wide range of analog signals from field instruments, including transmitters, sensors, and controllers. It supports both single-ended and differential input configurations, ensuring compatibility with diverse field wiring standards. With high-resolution A/D and D/A converters, the module provides precise conversion between analog and digital signals, allowing the control system to execute process control strategies with maximum accuracy.

Product Parameters

Product Applications

The Yokogawa AAI841-H00/CCC01 Analog I/O Module is widely used across multiple industries for precise process monitoring and control. Common applications include:

• Process Automation – Integrating analog signals from pressure, flow, temperature, and level transmitters into DCS systems.

• Power Generation – Monitoring turbine parameters, boiler conditions, and auxiliary system performance.

• Oil & Gas – Supervising upstream wellhead sensors, midstream pipeline instrumentation, and downstream refining units.

• Chemical Processing – Managing complex chemical reaction monitoring with accurate temperature and pressure inputs.

• Water & Wastewater Treatment – Controlling pumps, valves, and chemical dosing systems based on real-time measurements.

Product Advantages

• High Precision and Stability – Advanced 16-bit resolution ensures accurate representation of analog signals, minimizing drift.

• Noise Immunity – Strong isolation and filtering capabilities reduce the impact of electrical noise on signal integrity.

• Hot-Swappable Design – Allows replacement without shutting down the control system, reducing plant downtime.

• Flexible Signal Handling – Supports both current and voltage inputs, adapting to a wide range of field devices.

• Robust Build Quality – Designed to withstand harsh industrial environments including temperature extremes and high humidity.

• Self-Diagnostic Functions – Continuous internal monitoring to detect faults early and improve reliability.

• Global Compliance – Meets multiple international certification standards, ensuring compatibility in various regions.

FAQ

1. What type of isolation is provided in the AAI841-H00/CCC01 module?

The module offers channel-to-channel and channel-to-ground isolation to protect against signal interference and ground loops.

2. Can the module handle both current and voltage input signals?

Yes, it is designed to process both 4–20 mA current signals and ±10 V voltage signals.

3. What is the resolution of the A/D conversion in this module?

It provides a 16-bit resolution for high-precision signal conversion.

4. Is it possible to perform online replacement of the module without shutting down the system?

Yes, the AAI841-H00/CCC01 supports hot-swapping to enable maintenance without process interruption.

5. How does the module ensure signal accuracy in noisy industrial environments?

It uses high-quality isolation, noise filtering, and shielding to maintain accurate readings.

6. What is the typical scanning or sampling time for each channel?

The module typically samples each channel every 100 milliseconds.

7. Does the module have built-in diagnostics?

Yes, it continuously monitors itself for faults and reports them to the DCS system.

8. Can this module be integrated into non-Yokogawa systems?

While optimized for Yokogawa DCS systems, it may be used with other systems through appropriate interface configurations.

9. What certifications does the module comply with?

It is certified for CE, CSA, KC, and marine standards, ensuring safety and compatibility.

10. Is calibration required after installation?

Factory calibration is provided, but periodic verification is recommended for critical applications.