Product Details:

MODICON 6390-042.708853 is a rack-mounted CPU controller belonging to the AEG Modicon ALU154-2 control architecture. It adopts a 100 MHz high-speed processor and carries 4 MB RAM for storing user control programs, logic variables and process data, supporting complex sequential control, closed-loop regulation and arithmetic operations for industrial automation. This CPU integrates dual RJ45 Ethernet interfaces, full Modbus protocol support and CANopen master function, which can connect HMI, remote I/O racks, frequency converters and other field devices to build stable distributed fieldbus networks. It communicates with local I/O modules through the dedicated backplane bus and supports flexible system expansion according to on-site process requirements. The front panel is equipped with multi-color LED indicators to show power status, run mode, network activity and hardware faults for rapid on-site inspection and troubleshooting. Industrial circuit design with built-in EMC filtering and surge suppression guarantees reliable operation under strong electromagnetic interference, and it adapts to a wide working temperature range. As an obsolete original spare part, it is used for maintenance and retrofit of aging AEG Modicon ALU154-2 automation systems. Direct drop-in replacement keeps the existing control program, bus node configuration and rack layout unchanged, avoiding system re-development and cutting production downtime.

Basic Parameters

Product type: ALU154-2 series main CPU controller

Part number: 6390-042.708853

Processor: 100 MHz

Memory: 4 MB RAM

Communication: dual RJ45 Ethernet, Modbus, CANopen master

Compatible architecture: AEG Modicon ALU154-2

Installation: rack mount for matched dedicated backplane

Operating temperature: -10°C ~ +55°C

Protection grade: IP20

Supported Functions

User control logic scanning and execution

Local and remote I/O signal acquisition and output

Modbus master and slave communication

CANopen fieldbus network management

Program upload, download and online diagnosis

Battery-backed retention of runtime data and parameters

Core Functions

Real-time solving of automation sequence and interlock logic

Onboard multi LED for run, network and fault indication

Communication port transient surge and noise suppression

Fieldbus frame verification and error retransmission

Diagnostic flag storage for processor and bus failures

Synchronous data exchange with backplane I/O modules

Hardware Specifications & Environmental Features

Built-in signal filtering and surge suppression circuit

Storage temperature: -25°C ~ +70°C

Relative humidity: 5% to 95% non-condensing

Status: Obsolete original part, available for spare replacement

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

Note:Confirm ALU154-2 backplane compatibility, CANopen node address and firmware version before ordering.

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