Yokogawa AAB841-S03/M4A00 | AAB841 Series | Analog I/O Module

Product Overview

The AAB841-S03/M4A00 from Yokogawa is a multi-channel analog input/output module engineered for seamless integration within Yokogawa distributed control systems. It supports precise bidirectional signal handling, converting field-level analog signals into digital data for control execution, and outputting control signals back to instrumentation with high reliability.

Designed for rack-based field control environments, this module emphasizes measurement accuracy, thermal stability, and long-term operational consistency. Its non-isolated architecture and compact mechanical footprint make it suitable for dense control cabinets where space efficiency and signal integrity are critical.

Core Technical Characteristics

The AAB841-S03/M4A00 is configured to handle both voltage and current signals across multiple channels, enabling flexible I/O deployment within a single hardware unit.

• Analog input range: 1 to 5 V DC
• Analog output range: 4 to 20 mA
• Channel configuration: 8 analog inputs and 8 analog outputs
• Signal isolation: Non-isolated design
• Internal signal resolution: High-precision conversion optimized for Yokogawa FCS processing
• Temperature operating range: −20 °C to +70 °C (G3 environmental specification)
• Dimensions: 107.5 × 32.8 × 130 mm
• Weight: 0.3 kg

System Compatibility

This module is purpose-built for Yokogawa control architectures and supports direct installation in the following platforms:

• ESB bus node units: ANB10S, ANB10D
• Optical ESB bus node units: ANB11S, ANB11D
• ER bus node units: ANR10S, ANR10D
• Field control units: AFV30, AFV40, AFF50 series

The included /M4A00 option integrates a MAC2-compatible adapter (ATM4A-00), enabling consistent communication behavior across compatible bus infrastructures.

Design and Reliability

Manufactured in Japan under Yokogawa’s industrial quality standards, the AAB841-S03/M4A00 is intended for continuous operation in demanding process environments. Its lightweight construction minimizes rack load while maintaining mechanical robustness and electrical stability over extended service life.

Typical Application Scenarios

This analog I/O module is commonly deployed in:

• Process measurement and control loops
• Signal acquisition from transmitters and sensors
• Analog actuator and valve control
• Power, chemical, oil and gas, and manufacturing DCS installations

Frequently Asked Questions

Is this module isolated between channels? No. The AAB841 series uses a non-isolated channel design and should be applied accordingly in system grounding and signal planning.

Does the module support mixed signal types simultaneously? Yes. Voltage inputs and current outputs are supported concurrently within the same module.

Is this suitable for high-temperature environments? Yes. The S03 suffix includes the G3 option, extending the operating range up to 70 °C.