Product Details

Modicon A3005-A01 is an integrated plc unit and reliable process controller belonging to the Modicon A3000 modular automation family. This legacy automation controller serves as the core logic unit for small and medium process control systems, executing user-defined control programs, collecting field analog and discrete signals, and driving output actuators according to preset logic. It supports serial communication to exchange real-time data with HMI, supervisory computers and remote I/O racks. Built for continuous round-the-clock factory operation, this plc unit features stable memory retention to safeguard programs and register data after unexpected power loss. As a discontinued legacy spare, this process controller is widely stocked as a drop-in replacement, helping ageing automation systems resume normal operation without full equipment renovation.

Basic Parameters

Brand: Modicon

Model: A3005-A01

Product Type: Integrated PLC Unit / Process Controller

Series: A3000 Series

Programming Language: Ladder Logic

Communication: Serial Modbus compatible interface

Expansion: Supports external I/O expansion racks

Mounting: Standard rack mounting

Product Status: Discontinued legacy spare

Net Weight: Approximately 1.8 kg

Supported Functions

This plc unit supports ladder logic program upload, download and modification, real-time mixed analog and discrete I/O scanning, data register storage and serial supervisory communication. The process controller carries out built-in self-diagnosis to detect bus errors, communication interruptions and internal hardware faults. This legacy automation controller supports sequential control, interlock protection, arithmetic processing and remote I/O expansion to satisfy diversified process automation demands.

Core Functions

As the central process controller, this plc unit runs all user control logic, converts incoming field sensor signals into corresponding output drive commands and maintains stable program scan cycles. It manages serial data exchange for upper monitoring and coordinates connected expansion I/O modules. This legacy automation controller acts as a direct replacement to restore complete process control capability for old 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: Sturdy industrial metal and plastic composite casing

Protection: Built-in overvoltage and short-circuit protection

Anti-interference: EMI filtering and surge suppression for industrial environments

Compatibility: Matches 800 series backplane and compatible peripheral 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 800 series backplane compatibility, pulse signal type, counting mode and preset logic before ordering.

This is from our current stock.

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