Schneider 110CPU41103 PLC MICRO CPU

The Schneider 110CPU41103 serves as a compact processor for Micro PLC automation systems. This CPU executes logic programs and manages all I/O operations. Therefore, it provides cost-effective control for small to medium machines.

Product Overview

We built this micro CPU for space-constrained control panels and standalone equipment. Its integrated design combines processor, memory, and communication ports in one unit. Moreover, this module supports up to 256 local I/O points.

Technical Specifications

Parameter	Specification
Dimensions	9.0 cm (height) x 7.0 cm (width) x 10.0 cm (depth)
Weight	0.32 kg (approximately 0.71 lb)
Interface Type	1 USB port, 1 serial RS-485, removable terminal block
Component Count	148 components including CPU and memory ICs
Energy Storage	2 aluminum capacitors (470 µF, 16V) plus 1 supercapacitor
Processor	16-bit at 40 MHz
Memory	256 kB flash, 128 kB RAM for user program
Execution Speed	0.5 µs per logic instruction
I/O Capacity	256 digital, 64 analog maximum
Local I/O	Up to 48 points on CPU module itself
Communication	Modbus RTU via RS-485 port
Backup Time	72 hours for RAM via supercapacitor

Integrated Architecture

The Schneider 110CPU41103 incorporates all control functions into a single housing. Its two aluminum capacitors filter internal power for the processor core. Additionally, a supercapacitor maintains data during short power interruptions. You get reliable control without external memory modules.

Energy Storage Configuration

Two aluminum capacitors provide 8 ms of hold-up during power dips. A single supercapacitor stores 0.5 farads at 5.5V for long-term backup. This supercapacitor keeps RAM contents alive for up to 72 hours. The CPU needs no lithium battery for data retention. Program and data remain safe during weekend power shutdowns.

Built-In I/O Capabilities

The CPU includes 28 digital inputs and 20 digital outputs onboard. Digital inputs accept 24V DC signals from sensors and switches. Digital outputs provide 0.5A at 24V DC for small actuators. The module also includes 2 analog inputs for 0-10V sensors. These integrated I/O points reduce the need for expansion modules.

Installation Steps

Mount this micro CPU on DIN rail using the integrated spring clip. Connect 24V DC power to the dedicated terminals on the bottom. Then connect input devices to the upper row of screw terminals. Connect output devices to the lower row of screw terminals. Finally, connect the programming cable to the front USB port.

Power Requirements

The CPU requires 24V DC nominal with 10% tolerance. Current draw reaches 250 mA when powering only the processor. Add 10 mA per each active output point to calculate total load. Use a power supply rated at least 500 mA for typical configurations. The module includes reverse polarity protection on its power input.

Programming Features

This CPU executes programs created in Schneider’s Unity Pro or SoMachine software. Supported languages include ladder logic and instruction list. The processor handles up to 200 program networks with 1000 total instructions. Online monitoring allows real-time variable tracking without stopping the CPU. You can download program changes while the machine continues operating.

Communication Setup

The RS-485 port supports Modbus RTU master or slave operation. Connect up to 31 slave devices on a single multi-drop network. The USB port provides high-speed connection for programming only. Use USB for initial configuration and program downloads. For production systems, communicate through the RS-485 port to HMIs.

Application Scope

This micro CPU suits conveyor systems and small packaging machines. Many OEMs choose the Schneider 110CPU41103 for embedded equipment control. Its compact size fits inside machine control panels with limited depth.