Yokogawa AAI841-S00 S2 Analog I/O Module

The Yokogawa AAI841-S00 S2 Analog I/O Module is a key component within the CENTUM VP and ProSafe-RS control systems. This high-performance analog input/output module is engineered for demanding industrial environments, providing reliable and accurate signal conversion between field devices and the central control system. With its compact size and robust build, the AAI841-S00 is particularly well-suited for use in distributed control system (DCS) architectures.

The module supports 8 analog input channels and includes HART communication capabilities, enabling smart field device integration. It offers high signal accuracy and noise immunity, making it ideal for precision process control in industries such as petrochemical, oil and gas, power generation, and water treatment.

Product Specifications

Product Applications

The AAI841-S00 S2 module is widely used in the following industrial domains:

• Oil & Gas: For monitoring and control of pressure, flow, temperature, and level via analog sensor inputs.

• Chemical and Petrochemical Plants: Ideal for precise analog signal acquisition from smart field instruments using HART.

• Power Generation: Used in turbine and boiler control systems where fast and accurate data acquisition is crucial.

• Water and Wastewater Management: Collects analog data from flow meters, pH analyzers, and level sensors.

• Pharmaceutical Industry: Ensures accurate analog signal capture for temperature and fluid measurement in batch processes.

• Manufacturing: Integrates seamlessly with PLCs or DCS systems to monitor analog devices on the production floor.

Product Advantages

• High Accuracy & Stability: Maintains ±0.1% full-scale accuracy under wide operating conditions, ensuring measurement integrity.

• HART Integration: Built-in support for HART communication reduces wiring complexity and enhances diagnostics.

• Hot Swap Capability: Modules can be replaced without shutting down the system, improving maintainability.

• Compact Design: Slim profile allows for dense mounting in control panels.

• Rugged Construction: Engineered to withstand industrial environments with high EMI and temperature fluctuations.

• Flexible I/O Options: Can handle current and voltage inputs with HART, making it versatile for a variety of sensors.

• Reliability: Proven Yokogawa build quality and performance with field-proven reliability in mission-critical applications.

FAQ

1. What kind of input signals does the AAI841-S00 S2 support?

   It supports both 4–20 mA and 1–5 V DC analog signals with HART communication.

2. Does the module support HART protocol?

   Yes, it supports HART versions 5, 6, and 7 for smart device communication.

3. Is the module hot-swappable?

   Yes, it can be replaced during operation without shutting down the control system.

4. What certifications does this module have?

   The AAI841-S00 S2 is certified for CE, ATEX, FM, CSA, and IECEx compliance.

5. Can this module be used in safety instrumented systems?

   Yes, when integrated with the ProSafe-RS system, it supports safety-critical applications.

6. What is the data update rate?

   The module provides a fast update time of 100 milliseconds or less.

7. How many channels does it provide?

   It provides 8 isolated analog input channels.

8. Can it handle redundant configurations?

   Yes, it supports redundant operation when used with appropriate base modules.

9. What type of isolation is provided?

   It offers channel-to-channel and channel-to-ground isolation to prevent signal interference.

10. What is the typical weight of the module?

    0.3 kg, making it easy to handle during installation or replacement.