Product Details

Modicon AS-S911-000 is a professional remote i/o adapter and communication module built for the classic Modicon 800 series rack system. This legacy automation part bridges the main PLC processor and distributed remote I/O stations, transmitting digital and analog field signals steadily over dedicated serial links. It converts internal backplane data into transmission packets and forwards remote feedback data back to the host CPU, ensuring seamless coordination between local racks and distant field nodes. As a vital communication module, it is widely selected for replacement when original adapters fail, helping ageing automation systems stay online without large-scale reconstruction.

Basic Parameters

Brand: Modicon

Model: AS-S911-000

Product Type: Remote I/O Adapter Module

Bus Compatibility: Modicon 800 series backplane

Interface: Serial remote I/O port

Data Type: Supports discrete and analog signal transmission

Mounting: Standard rack mounting

Product Status: Discontinued legacy spare

Net Weight: Approximately 1.6 kg

Supported Functions

This remote i/o adapter supports bidirectional serial data transmission between the main CPU and remote I/O racks, real-time signal forwarding, and basic link fault detection. It performs data packaging, checksum verification and signal retransmission to reduce transmission errors. The communication module also supports multiple remote node expansion, allowing users to add more field acquisition points according to site requirements.

Core Functions

As the signal gateway, this remote i/o adapter routes I/O data between the central processor and distributed remote stations. It maintains stable link timing for signal exchange and reports communication failures for quick maintenance. This legacy automation part serves as a drop-in replacement to restore remote signal transmission for old Modicon control racks.

Hardware Specifications & Environmental Features

Operating Temperature: -10°C ~ +60°C

Storage Temperature: -20°C ~ +70°C

Relative Humidity: 5%–95%, non-condensing

Housing: Compact industrial metal casing

Anti-interference: Built-in noise and surge protection for field wiring

Installation: Hot-swap capable under proper power management

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note: Confirm 800 series backplane compatibility, pulse signal type, counting mode and preset logic before ordering.

This is from our current stock.

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