Product Parameters

Manufacturer: Schneider Electric (AEG Modicon)

Model: AM-S908-000 (AS-S908-000)

Series: Modicon 984 / Quantum

Function: Remote Input Output (RIO) Master Processor

Protocol: S908 Dedicated Remote Input Output Protocol

Transmission Rate: 1.544 Mbps

Medium: 75Ω Coaxial Cable (F-Type Interface)

Network Capacity: Up to 16 Remote Input Output Stations

Input/Output Points: Maximum 64 Input Bytes/64 Output Bytes per Station

Isolation Voltage: 500VAC (Network ↔ Logic Side)

Backplane Current: Approximately 200mA @ 5VDC

Weight: Approximately 0.91 Kilograms

Dimensions (Width x Height x Depth): Standard Modicon Rack Size Specifications

Operating Temperature: 0°C to +60°C

Storage Temperature: -25°C to +70°C

Humidity: 5% - 95% (No Condensation)

Installation Method: Dedicated 984/Quantum Rack Slot

Protection Level: IP20

Certifications: CE, UL 508, CSA C22.2 No.4

Features/Characteristics

S908 Network Master Station: Manages the entire remote I/O network, performs real-time polling of stations.

High-speed Deterministic Communication: 1.544 Mbps, Fixed Refresh Cycle, Suitable for High-Speed Control. Coaxial Cable Redundancy: Supports Dual Cable Configuration, Enhancing Network Reliability.

LED Diagnostics: Power, Operation, Communication, Fault Indicators, Facilitating Quick Fault Location.

Large I/O Capacity: A Single Module Can Manage Thousands of Distributed I/O Points.

Application Domains: Large Process Industries (Power Plants, Chemicals, Water Treatment)

Automotive Manufacturing (Welding Assembly, Assembly Lines Distributed I/O) Logistics Warehousing (Sorting, Conveyor Line Remote Control)

Upgrade of Old Production Lines (Compatible with Traditional Modicon 984 Systems) Compatibility

PLC: Modicon 984 Full Product Line, Quantum Early Models

Programming Software: Modicon Soft, Concept Software

RIO Product Line: Compatible with S908 Protocol Remote I/O Rack (e.g. AS-B Series)