Schneider AEG AS-B872-100
The AS-B872-100 is a Modicon 800 series I/O module launched by Schneider Electric (formerly AEG), specially designed for industrial automation systems to deliver reliable digital/analog signal acquisition and output functions. Operating at 24V DC, this module is suitable for harsh industrial environments, supports DIN rail mounting, and is compatible with the AS-i bus network.
Key Technical Specifications
Product Features
- High Reliability: Adapted to harsh industrial environments with overvoltage, short-circuit and reverse polarity protection.
- Versatile Communication: Supports industrial protocols like Modbus RTU for seamless integration with upper-level systems.
- Flexible Networking: Works as an AS-i slave device, compatible with multiple modules including digital input, digital output, and analog input/output units.
- Diagnostic Functions: Equipped with status indicators, fault detection and diagnostic information for convenient on-site maintenance.
- Easy Configuration: Rapid parameter setting and network layout can be completed with Schneider’s dedicated AS-i configuration software.
Structure & Components
- Module Body: Metal housing with built-in PCB and input/output terminal blocks.
- Terminal Blocks: Screw-type wiring design supporting quick plug-and-play operation.
- Indicators: Power, communication and fault status lights for quick on-site operation status judgment.
- Connectors: Standard AS-i interfaces (e.g., AS-8535-000) for bus cascading.

Typical Application Fields
- Signal acquisition and control of sensors/actuators in automated production lines
- Discrete I/O requirements in process control systems (e.g., chemical, food & beverage industries)
- Status monitoring of logistics and warehousing equipment
- Switch control in energy management systems
Installation & Maintenance Guidelines
Installation Method
Wiring Notes
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