Schneider AEG AS-S908-120 Bus Control Module
Schneider AEG AS-S908-120
1. Overview
2. Key Specifications
| Specifications | Details |
|---|---|
| Model | AS-S908-120 |
| Dimension | 1U (approx. 44 mm in height) |
| Power Supply | 24 V DC (external power module required) |
| I/O | 8 digital inputs, 8 digital outputs (analog I/O expansion optional) |
| Communication Interfaces | 2-channel RS-485 (supporting Modbus RTU/ASCII)
1-channel Ethernet (optional) |
| Operating Temperature | -10 °C to +55 °C |
| Protection Grade | IP20 (for indoor cabinet installation) |
| Certifications | CE, UL, CSA and other international safety certifications |
3. Product Features
- Modular combination: Freely assemble with same-series CPUs, communication modules and expansion modules to meet control requirements of different scales.
- Plug-and-play: Adopts standard slots for quick on-site assembly, maintenance and replacement.
- High reliability: Industrial-grade components ensure excellent anti-interference and anti-vibration performance, suitable for harsh working environments.
- Flexible programming: Compatible with Schneider EcoStruxure control software, supporting multiple programming languages such as ladder diagram and structured text.
- Diagnostic function: Built-in self-test function and fault indicator lights for quick on-site troubleshooting.
4. Structure & Components
- Main board: Equipped with 32-bit MCU core processor and Flash + RAM storage.
- Digital I/O expansion board: Provides 8-channel DI / 8-channel DO with optocoupler isolation.
- Communication board: Integrated with RS-485 transceiver and optional Ethernet PHY.
- Power interface: 24 V DC input terminal, used with external power modules.
- Cabinet mounting slot: 19-inch rack slot compliant with IEC 60297 standard.
5. Typical Application Fields
- Building automation: Centralized control of air conditioning, lighting and security systems.
- Distribution automation: Monitoring and protection of distribution cabinets and substations.
- Industrial processes: Logic control of packaging, conveying and assembly lines.
- Energy management: Monitoring and dispatching of photovoltaic inverters and energy storage systems.
6. Installation & Maintenance Notes
Installation
Wiring
Commissioning
Maintenance
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ABB 丨 GE 丨Allen Bradley 丨 Honeywell 丨 Emerson 丨 Bently Nevada 丨 Westinghouse
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