Product Details

Modicon ALU152, often miswritten as ALUMINIUM152, is a high-performance plc cpu module and reliable central processing unit belonging to the Modicon A120 legacy PLC family, manufactured by AEG Modicon. This a120 processor unit serves as the main control brain for A120 automation racks, equipped with 1.2 MB memory for user ladder logic and register data storage, supporting complex process control sequences, mathematical calculation and analog closed‑loop regulation. It integrates MODNET1 and SFB communication interfaces, enabling high‑speed data exchange with remote I/O racks, HMI panels and supervisory SCADA hosts. Built‑in lithium battery backup preserves program and runtime data through unexpected power loss, avoiding costly production downtime. As a discontinued legacy spare, this plc cpu module acts as a drop‑in replacement to restore full system control for ageing A120 control racks without overhauling the whole automation system.

Basic Parameters

Brand: Modicon (AEG legacy)

Model: ALU152 (ALUMINIUM152, ALU152-1)

Product Type: A120 Series Central Processor CPU Module

Compatible Rack: Modicon A120 series backplane and chassis

User Memory: 1.2 MB

Communication: MODNET1, SFB network interface

Programming Language: Ladder Logic

Part Alias: 6065-042.276445

Mounting: Standard single-slot rack installation

Product Status: Discontinued legacy spare

Net Weight: Approximately 1.25 kg

Supported Functions

This plc cpu module supports ladder logic upload, download and modification, cyclic local and remote I/O scanning and non‑volatile data retention by battery backup. The central processing unit runs built‑in self‑diagnostics to detect backplane faults, network communication failures and low battery alarms. This a120 processor unit supports sequential interlock control, PID computation, recipe storage and distributed peer communication, and can coordinate multiple expansion I/O modules to expand control scale for large production lines. It forwards real‑time process variables and fault alarms to upper monitoring systems and accepts remote setpoint commands.

Core Functions

As the dedicated central processing unit, this plc cpu module interprets and executes all user automation logic, converts sensor input signals into drive commands for field actuators, and maintains stable scan cycles for the entire A120 rack. It manages MODNET1 bus traffic and synchronises distributed I/O nodes. This a120 processor unit serves as a direct spare to recover primary logic processing capability for ageing Modicon automation racks.

Hardware Specifications & Environmental Features

Operating Temperature: -10°C ~ +60°C

Storage Temperature: -20°C ~ +70°C

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

Housing: Heavy-duty shielded industrial metal casing

Protection: Lithium battery data backup, onboard transient surge suppression

Anti-interference: Isolated network ports and EMI filtering for noisy plant power environments

Compatibility: Matches Modicon A120 series backplane and compatible peripheral I/O modules

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 A120 backplane compatibility, battery health, network node address and program version before ordering.

This is from our current stock.

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