Product Details

Modicon 110-CPU-411-03 is a compact micro 110 plc controller and reliable fixed i/o processor within the Modicon Micro 411 series, designed by AEG Modicon for standalone small machinery and skid automation. This compact machine plc integrates CPU core, built-in power supply and fixed mixed I/O into one DIN-rail housing, programmed with LL984 ladder logic via Modsoft software. It carries 16 points of onboard AC discrete input and 12 points of AC output, suitable for valves, contactors, limit switches and local alarm devices. It provides dual serial ports: RS232 for programming connection and RS485 Modbus port to link HMI, remote displays and other Micro PLC nodes. The controller supports optional I/O expansion modules to enlarge control scale when more signals are required. Front LED indicators clearly show run, fault, communication and individual I/O status for quick troubleshooting. As a discontinued legacy spare, this micro 110 plc controller serves as a drop-in replacement to restore complete standalone machine control for ageing Modicon Micro automation installations.

Basic Parameters

Brand: Modicon (AEG / Schneider legacy)

Model: 110-CPU-411-03

Product Type: Micro 110 All-In-One Integrated PLC Controller

Mounting: Standard DIN rail mounting

CPU Clock: 8 MHz

Programming Software: Modsoft

Logic Language: LL984 Ladder Logic

Onboard Input: 16-point AC discrete input

Onboard Output: 12-point AC discrete output

Communication: RS232 programming port, RS485 Modbus RTU port

Power Supply: 24 VDC

Indicator: Front LED for run, fault, communication and channel status

Expandability: Compatible with Modicon Micro expansion I/O modules

Product Status: Discontinued, end of original production

Net Weight: Approximately 1.18 kg

Supported Functions

This micro 110 plc controller executes cyclic ladder logic scanning for onboard and expansion I/O. The fixed i/o processor supports timer, counter, arithmetic operation, PID closed-loop regulation, interlock sequencing and alarm management. This compact machine plc can work as Modbus master or slave to exchange real-time data with operator terminals and supervisory systems. It supports program and register data backup by built-in battery, and runs continuous self-diagnostics to detect memory error, communication timeout, I/O short circuit and power abnormality. When critical faults occur, it locks outputs to predefined safe states to protect field equipment. It can be expanded with additional discrete and analog modules to satisfy medium batch process control demands.

Core Functions

As an all-in-one fixed i/o processor, this micro 110 plc controller reads field switch and sensor signals, runs user control logic and drives actuators directly through its native I/O. Its serial Modbus interface enables data exchange with upper monitoring devices, making it a perfect standalone control unit for small production machines. This compact machine plc acts as a direct spare to rebuild stable local sequential control for ageing Modicon Micro automation systems.

Hardware Specifications & Environmental Features

Operating Temperature: 0°C ~ +60°C

Storage Temperature: -20°C ~ +70°C

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

Housing: Compact industrial plastic housing, IP20

Protection: Hardware watchdog, built-in fuse, transient suppression on I/O channels

Anti-interference: Filtered serial communication ports and noise suppression for AC I/O circuits

Compatibility: Modicon Micro expansion I/O modules, Modsoft programming tool, Modbus compatible field devices

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 program backup, battery condition, Modbus communication parameters and onboard I/O voltage rating before ordering.

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