AEG AM-SA85-000 Modicon Serial Communication Module
- Product Introduction: This is a dual-port serial communication module for AEG Modicon 800 series PLC systems, enabling data exchange between the PLC and external devices (HMI, sensors, VFDs, SCADA systems) via RS-232 and RS-485 interfaces. It supports Modbus RTU/ASCII protocols, with baud rates up to 115200 bps and multi-drop capability, ideal for integrating legacy serial devices into modern industrial networks.
- Technical Specifications:
- Interfaces: 1×RS-232 (DB9), 1×RS-485 (screw terminal), auto-sensing for Modbus RTU/ASCII.
- Protocols: Modbus RTU, Modbus ASCII, configurable via programming software.
- Baud Rates: 300-115200 bps (configurable), parity (none/even/odd), data bits (7/8), stop bits (1/2).
- Multi-Drop: RS-485 supports up to 32 devices on a single bus, line length up to 1200 meters.
- Isolation: 2500 VAC between interfaces and backplane, surge protection ±2 kV.
- Processor: 32-bit communication processor, dedicated to protocol handling.
Detailed content
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- Memory: 512 KB Flash (configuration), 256 KB RAM (data buffering).
- Power Supply: 24 VDC from PLC backplane, power consumption ≤3 W.
- Operating Temperature: -25°C to +70°C; Storage Temperature: -40°C to +85°C; Protection Rating: IP20.
- Dimensions: 60mm × 160mm × 50mm (W×H×D); Mounting: 35mm DIN rail (Modicon 800 series chassis slot).
- LED Indicators: Power (green), RS-232 link/activity (yellow), RS-485 link/activity (yellow), fault (red).
- Functional Features:
- Dual RS-232/RS-485 ports enable simultaneous connection to multiple serial devices, reducing the need for additional modules.
- Modbus RTU/ASCII support ensures compatibility with a wide range of industrial devices, including legacy equipment.
- High baud rates (up to 115200 bps) and multi-drop capability (32 devices) support large-scale serial networks.
- 2500 VAC isolation and ±2 kV surge protection safeguard the PLC from electrical interference and transient voltage spikes.
- Dedicated communication processor handles protocol tasks without CPU overhead, ensuring real-time control performance.
- Large memory (512 KB Flash/256 KB RAM) supports data buffering for reliable communication during network congestion.
- Plug-and-play integration with Modicon 800 series PLCs, with configuration via programming software.
- LED indicators for power, link/activity, and faults enable quick troubleshooting of communication issues.
- Industrial-grade design with wide temperature range ensures reliable performance in harsh environments.
- Application Scenarios: Used in industrial communication systems for factory automation, building management, and process control. It connects Modicon PLCs to HMI panels, VFDs, flow meters, and SCADA systems. Suitable for integrating legacy serial devices into modern industrial networks with reliable, high-speed communication.












