TM221CE24U Modicon M221 Controller 24 I/O Ethernet

TM221CE24U – Modicon M221 Logic Controller

Compact, high-performance logic controller for discrete and analog control. Supports Ethernet, fast I/O, and positioning functions. Ideal for small to mid-size automation systems.

Key Features

• 24 I/O – 14 digital inputs, 10 transistor outputs, 2 analog inputs
• Fast I/O – 4 fast inputs (100 kHz), 2 fast outputs (100 kHz)
• Built-in Ethernet – Modbus TCP, Ethernet/IP adapter, web server
• Positioning & PWM – 2-axis PTO, PWM, PLS, frequency generator
• Expandable – up to 7 expansion modules (relay or transistor)

Technical Specifications

• Brand – Schneider Electric
• Model – TM221CE24U
• Series – Modicon M221
• Module Type – Logic Controller, 24 I/O, Transistor Output (NPN)
• Rated Supply Voltage – 24 V DC (20.4…28.8 V)
• Digital Inputs – 14 (Type 1), including 4 fast inputs
• Analog Inputs – 2, 0…10 V, 10-bit resolution
• Digital Outputs – 10 transistor, 24 V DC, 0.5 A per output
• Fast Outputs – Q0…Q1 (100 kHz), Q2…Q3 (5 kHz)
• Memory – 256 KB user RAM + 256 KB flash backup
• Real-Time Clock – built-in, drift ≤30 s/month
• Communication Ports – Ethernet (RJ45), USB Mini-B, serial RS232/RS485
• Protocols – Modbus TCP, Modbus RTU/ASCII, Ethernet/IP
• Protection – IP20, CE, UL, CSA, DNV-GL, ABS

Measurement & Performance

• Analog Resolution – 10 bits (10 mV per LSB)
• Conversion Time – 1 ms per channel + cycle time
• Accuracy – ±1% of full scale
• Input Impedance – 3.4 kΩ (digital), 100 kΩ (analog)
• Fast Input Frequency – up to 100 kHz (HSC mode)
• Output Frequency – 100 kHz (fast), 5 kHz, 0.1 kHz
• Response Time – 5 µs (fast I/O), 35 µs (standard)

Environmental & Reliability

• Operating Temperature – -10…55 °C (horizontal), -10…35 °C (vertical)
• Storage Temperature – -25…70 °C
• Humidity – 10…95% non-condensing
• Altitude – 0…2000 m (operation)
• Vibration Resistance – 3.5 mm / 1 gn (5…150 Hz)
• Shock Resistance – 147 m/s² (11 ms)
• EMC Immunity – 4 kV ESD, 10 V/m RF, 2 kV surge, 2 kV fast transients
• Emissions – Class A, EN/IEC 55011

Installation & Mounting

• Mounting – DIN rail (TH35-15 or TH35-7.5) or panel with fixing kit
• Dimensions – 110 x 90 x 70 mm (W x H x D)
• Weight – 0.57 kg
• Electrical Connection – Removable screw terminals for I/O, USB, RJ45
• Cable Length – Shielded: 10 m (fast inputs), 3 m (fast outputs); Unshielded: 30 m

Commissioning & Maintenance

• Programming Software – SoMachine (or EcoStruxure Machine Expert)
• Execution Speed – 0.3 ms / 1K instructions (event/periodic task)
• Data Backup – Flash memory + optional SD card (up to 2 GB)
• Battery – BR2032 (4 years life, 1 year backup at 25°C)
• Diagnostics – LED indicators for status, I/O, Ethernet link, SD access

Compatibility

• Expansion – up to 7 modules (transistor or relay)
• Communication – Modbus TCP, Modbus RTU, USB, Ethernet/IP
• Peripheral – HMI, VFD, sensors, encoders via fast inputs
• Software – SoMachine, EcoStruxure Machine Expert, Web server

Certifications & Standards

• EN/IEC 61131-2, 60664-1, 61010-2-201
• ABS, CSA, CULus, LR, DNV-GL, RCM, EAC
• RoHS (since 1608), REACH compliant
• Green Premium product – environmental profile available

Package Content

• TM221CE24U controller with protective cover
• Removable screw terminal blocks (inputs & outputs)
• Quick start guide (printed)
• Battery BR2032 (pre-installed)
• Mounting kit (optional for panel)

Warranty & Shipping

• Warranty – 12 months from date of purchase
• Shipping – 12-24 hours dispatch (business days)
• Couriers – FedEx, UPS, DHL (trackable)

Expert Review

“The M221 is a reliable workhorse for small machines. Its fast I/O and Ethernet make it ideal for packaging and material handling. Easy to program and expand.” – Senior Automation Engineer

Manager’s Insight

“For cost-sensitive projects, the M221 offers the best price-performance ratio. The built-in positioning and PID reduce external components, saving panel space.” – Product Manager

Applications

• Small conveyor systems
• Packaging machines
• HVAC control panels
• Pump & fan control
• Labeling and filling machines
• Simple robotics (1-2 axes)

Frequently Asked Questions

• Is the TM221CE24U suitable for analog sensors?

  Yes, it has 2 analog inputs (0-10V) with 10-bit resolution.

• Can I expand the I/O later?

  Yes, you can add up to 7 expansion modules.

• What software do I need?

  Use SoMachine or EcoStruxure Machine Expert – both free versions available.

• Does it support Modbus TCP?

  Yes, it acts as Modbus TCP server and client.

• Is programming cable included?

  No, you need a standard USB Mini-B cable (not included).

• What is the fast input frequency?

  Up to 100 kHz for HSC, A/B, or pulse/direction.

• How to backup the program?

  Internal flash + optional SD card (up to 2 GB).

• Can I use it with 3-wire sensors?

  Yes, inputs are sink/source configurable.

Selection Guide

• If you need high-speed counting or positioning, choose TM221CE24U (fast inputs).
• If you need more analog inputs, consider the M241 series.
• For relay outputs, use expansion modules (TM2…).
• For Ethernet/IP or Profinet, M221 supports Ethernet/IP adapter.
• Check the total current per common (5 A) when sizing outputs.

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