Schneider TM221C40R

1. Product Overview

The Schneider TM221C40R is a compact programmable logic controller from the Modicon M221 series, offering a cost-effective automation solution. Featuring 40 I/O points (24 inputs/16 outputs), this PLC is ideal for small-to-medium machinery and industrial automation applications.

Powered by a 32-bit ARM Cortex processor with 0.15μs Boolean instruction speed, it supports standard IEC 61131-3 programming languages (LD, FBD, ST). Certified to CE, UL, cUL standards, it operates in -20°C to +60°C with industrial EMC immunity per IEC 61000-4.

2. Key Features

(1) Hardware Configuration

• CPU Performance:

  • 32-bit ARM Cortex-M3 processor

  • Program memory: 64KB

  • Data memory: 32KB

  • Boolean instruction speed: 0.15μs

• I/O Configuration:

  • 24 digital inputs (24VDC, sink/source selectable)

  • 16 relay outputs (2A/point)

• Communication:

  • 1× USB programming port (Mini-B)

  • 1× Ethernet (10/100Mbps, Modbus TCP)

  • 1× RS-485 (Modbus RTU/ASCII)

(2) Software Features

• Programming software: EcoStruxure Machine Expert-Basic (free)

• Supported languages:

  • Ladder Diagram (LD)

  • Function Block Diagram (FBD)

  • Structured Text (ST)

  • Instruction List (IL)

• Built-in function blocks:

  • Timers/Counters (256 each)

  • Analog processing (via expansion)

  • PID control

(3) Expandability

• Max expansion modules: 8

• Supported modules:

  • Digital I/O

  • Analog I/O

  • Temperature (RTD/thermocouple)

  • Communication (CANopen, IO-Link)

(4) Industrial Reliability

• Operating temp: -20°C to +60°C

• Storage temp: -40°C to +85°C

• Vibration: 5-57Hz/0.075mm, 57-150Hz/1g

• Shock: 15g/11ms

• Protection: IP20 (requires enclosure)

3. Typical Applications

(1) Small Machinery Control

• Packaging machines

• Food processing

• Printing equipment

• Textile machinery

(2) Industrial Automation

• Conveyor control

• Sorting systems

• Basic process control

• Equipment monitoring

(3) Building Automation

• Lighting control

• HVAC systems

• Access control

(4) Infrastructure

• Pump control

• Small wastewater treatment

• Power distribution monitoring

4. Why Choose Schneider TM221C40R?

(1) Cost-Effective Performance

Superior processing speed and memory capacity in its price class.

(2) Flexible Expansion

8 expansion slots for future-proof system upgrades.

(3) User-Friendly Software

Free EcoStruxure Machine Expert-Basic simplifies programming.

(4) Robust Connectivity

Built-in Ethernet and RS-485 with industrial protocol support.

(5) Industrial Durability

Wide temperature range and EMC immunity for harsh environments.

(6) Schneider Ecosystem

Seamless integration with Schneider drives, HMIs, and other automation products.