TM221CE16T Modicon M221 Controller 16 I/O Transistor Ethernet

TM221CE16T – Modicon M221 Logic Controller

Compact, powerful, and engineered for precision. This 16 I/O transistor-based controller delivers robust performance for demanding automation tasks. With embedded Ethernet, fast counting, and positioning functions, it fits seamlessly into modern industrial networks.

Key Features at a Glance

• 16 I/O (9 digital inputs, 7 transistor outputs)
• 2 analog inputs (0…10 V, 10-bit resolution)
• 4 fast inputs + 2 fast outputs (100 kHz)
• Ethernet (Modbus TCP, Ethernet/IP adapter)
• Expandable up to 4 I/O modules
• Real-time clock & PID regulation (14 loops)

Technical Specifications

• Brand: Schneider Electric
• Model: TM221CE16T
• Series: Modicon M221
• Type: Logic Controller, Transistor Output
• Rated Supply: 24 V DC (20.4…28.8 V)
• Digital Inputs: 9 (Type 1, 4 fast inputs)
• Analog Inputs: 2 (0…10 V, 10 bits)
• Transistor Outputs: 7 (24 V, 0.5 A each)
• Fast Outputs: 2 (100 kHz PWM/PLS)
• Counting: 4 fast inputs (100 kHz, 32-bit)
• Positioning: PTO 2 axes (pulse/direction, 100 kHz)
• Memory: 256 kB RAM + 256 kB flash backup
• Execution Speed: 0.2 µs per Boolean instruction
• Response Time (fast I/O): 5 µs
• Analog Accuracy: ±1 % of full scale
• Operating Temperature: -10…55 °C (horizontal)
• Protection: Overload & short-circuit (auto reset)
• EMC Immunity: 4 kV ESD, 10 V/m radiated
• Mounting: DIN rail (TH35-7.5/15) or panel
• Weight: 0.346 kg
• Certifications: CE, CSA, cULus, DNV-GL, ABS, LR

Installation & Commissioning

• DIN rail mounting (TH35-7.5 or TH35-15) or panel with kit.
• Removable screw terminals for inputs and outputs.
• USB port (Mini B) for programming with SoMachine.
• Ethernet RJ45 for network integration.
• Serial link RS232/RS485 (Modbus RTU/ASCII).
• Shielded cables for fast I/O (max 10 m).
• Unshielded cables for digital I/O (max 30 m).

Maintenance & Diagnostics

• LED indicators for I/O status, power, error, and network activity.
• Auto-reset on overload (1 s recovery).
• Battery backup (BR2032) retains data for 1 year.
• SD card slot for data logging and program backup.

Compatibility & Integration

• Ethernet/IP adapter – seamless with Rockwell and other PLCs.
• Modbus TCP client/server – master/slave RTU over serial.
• SoMachine-Network protocol over USB and serial.
• Expandable with up to 4 relay or transistor I/O modules.
• Works with HMI, drives, sensors, and actuators.

Environmental & Certifications

• IP20 (with protective cover).
• Pollution degree 2, operating altitude 0…2000 m.
• Vibration: 3.5 mm (5…8.4 Hz) / 1 gn (8.4…150 Hz).
• Shock: 147 m/s² (11 ms).
• Standards: EN/IEC 61010-2-201, 61131-2, 60664-1.
• Marine approvals: DNV, GL, ABS, LR, IACS E10.

Package Contents

• TM221CE16T controller unit
• Removable screw terminal blocks (inputs & outputs)
• Mounting clip for DIN rail
• Quick start guide (digital download)
• Warranty: 12 months against manufacturing defects.

Shipping & Delivery

• Same-day dispatch for orders placed before 2 PM (UTC+8).
• Delivery within 12–24 hours via FedEx, UPS, or DHL (express).
• Tracking number provided upon shipment.

Expert Review – Engineer’s Verdict

“A reliable workhorse for small to mid-size control systems.” The TM221CE16T combines fast I/O, Ethernet, and positioning in a compact footprint. Its 100 kHz counting and PWM outputs make it ideal for motion control. The built-in PID and real-time clock add value without extra modules. Easy to program with SoMachine, and the rugged design suits factory floors. Recommended for cost-effective automation upgrades.

Manager’s Insight – Operational Efficiency

This controller reduces panel space and wiring time. Its transistor outputs are fast and durable (20 million cycles). The automatic overload protection minimizes downtime. With multiple communication ports, it integrates with existing networks smoothly. A smart choice for OEMs and system integrators who need flexibility and performance.

Ideal Applications & Equipment

• Packaging machines – high-speed counting and positioning.
• Conveyor systems – PID control for speed regulation.
• Small robotic cells – pulse/direction control for stepper drives.
• HVAC and building automation – analog input for temperature sensors.
• Test and measurement – fast data acquisition.

Frequently Asked Questions

• What is the maximum output frequency?
  Fast outputs Q0/Q1: 100 kHz; Q2/Q3: 5 kHz; Q4…Q6: 0.1 kHz.
• Can I use this with 120 V AC power?
  No, it requires 24 V DC (20.4…28.8 V). Use an external power supply.
• Is the battery replaceable?
  Yes, BR2032 lithium coin cell. Battery life is 4 years.
• How many expansion modules can I connect?
  Up to 4 modules (transistor or relay).
• Does it support Ethernet/IP?
  Yes, it acts as an Ethernet/IP adapter.
• What software do I need?
  SoMachine or SoMachine-Network (free download).
• Can I program over the Ethernet port?
  Yes, via Modbus TCP or SoMachine-Network.
• What is the response time for fast inputs?
  5 µs (turn-on and turn-off) for I0, I1, I6, I7.
• Is the controller suitable for marine environments?
  Yes, it holds DNV, GL, ABS, and LR certifications.

Selection Guide – How to Choose

• For high-speed counting: TM221CE16T has 4 fast inputs (100 kHz).
• For positioning: 2 PTO axes (pulse/direction) up to 100 kHz.
• For analog monitoring: 2 built-in 0…10 V inputs (10-bit).
• For network integration: Ethernet/IP and Modbus TCP are standard.
• For expansion needs: Add up to 4 I/O modules.
• For cost-sensitive projects: This model offers high value without sacrificing performance.

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