AEG AS-C921-101 Communications Processor
Functional Features
- Multi-Port MODBUS Support: Equipped with 3 MODBUS ports, enabling communication with multiple MODBUS devices simultaneously per scan cycle, enhancing data exchange efficiency. Port 1 is located under the front removable access plate, while Ports 2 and 3 are situated at the bottom of the module.
- Programming Device Compatibility: Establishes a stable communication link between 984A/984B PLCs and programming devices, ensuring smooth program uploading, downloading, and online monitoring.
- ASCII Output Interface: A dedicated port under the front access plate enables connection with P964/965 Data Access Panels and simple ASCII output devices such as printers and display terminals, expanding data display and recording capabilities.
- Flexible P965 Connection: The P965 Data Access Panel can be attached via either the ASCII port or a MODBUS port, offering flexible integration options based on system requirements.
- Robust Environmental Adaptability: Operates reliably in a wide temperature range (-10°C to 50°C) and humidity range (10% – 95% RH), with IP20 protection against dust and solid objects, shock resistance of 10 g for 11 ms, and vibration resistance of 1.5 g at 10-500 Hz, ensuring durability in harsh industrial environments.
- Efficient Data Processing: Facilitates fast and accurate data transmission between different devices, optimizing system response time and operational efficiency.
- Easy Installation: DIN rail mounting design allows for quick and secure installation, saving time and effort during system setup.
Detailed content
Product Introduction
The AEG AS-C921-101 is a specialized communications processor module under Schneider Electric’s Modicon series, originally from AEG/Gould. It serves as a critical interface that enables seamless communication between Modicon 984A/984B programmable logic controllers (PLCs) and various programming devices, MODBUS-compatible equipment, and ASCII output devices, facilitating data exchange and control signal transmission in industrial automation systems. It is designed for easy integration, reliable performance, and efficient data processing in industrial settings.
Technical Specifications
| Category | Details |
|---|---|
| Manufacturer | Schneider Electric (formerly AEG/Gould) |
| Product Line | Modicon C921 Series |
| Part Number | AS-C921-101 |
| Input Voltage | 5V DC |
| Current Consumption | 250 mA |
| Communication Interfaces | 3 MODBUS ports, 1 ASCII/P964/P965 port |
| Number of Inputs | 16 Channels |
| Number of Outputs | 8 Channels |
| Communication Protocol | Modbus RTU |
| Operating Temperature | -10°C to 50°C |
| Storage Temperature | -20°C to 70°C |
| Humidity Range | 10% – 95% RH (non-condensing) |
| Mounting Type | DIN Rail |
| Protection Class | IP20 |
| Shock Resistance | 10 g for 11 ms |
| Vibration Resistance | 1.5 g at 10-500 Hz |
| Dimensions | 100 mm × 50 mm × 25 mm |
| Weight | 1.45 kg (3.19 lbs) |
Application Scenarios
- Industrial Automation Control Systems: Used in manufacturing plants to connect 984A/984B PLCs with programming devices, enabling program maintenance and real-time monitoring of production lines.
- MODBUS Network Integration: Ideal for systems requiring communication with multiple MODBUS devices, such as sensors, actuators, and variable frequency drives, in industries like automotive, electronics, and food processing.
- Data Acquisition and Display: Connects to P964/965 Data Access Panels and ASCII output devices to collect and display critical production data, supporting operational decision-making and process optimization.
- Legacy System Upgrades: Serves as a communication bridge for upgrading and modernizing older 984A/984B-based systems, allowing seamless integration with new devices without replacing the entire PLC infrastructure.
- Remote Monitoring and Control: Enables remote access and control of industrial equipment through MODBUS ports, suitable for applications in oil and gas, water treatment, and power generation industries where remote operation is essential.
- Small to Medium-Sized Industrial Setups: Compact size and efficient performance make it suitable for small to medium-sized automation projects that require reliable communication between a limited number of devices.
Additional Information
- Condition: Available in used and excellent condition, tested for functionality, with a 1-year warranty and 30-day return guarantee from some suppliers.
- Warranty Options: Some resellers offer a 2-year warranty for added peace of mind.
- Alternative Names: Also known by alternative designations such as AS-C921-10L, AS-C921-1O1, ASC921101, etc., for cross-referencing purposes.












