Schneider Electric TM221ME32TK Modicon M221 Logic Controller – 32 I/O Transistor PNP with Ethernet

The TM221ME32TK from Schneider Electric belongs to the Modicon M221 range of logic controllers. This compact unit combines 16 discrete inputs, 2 analog inputs, and 16 transistor PNP outputs on a 24 V DC supply. It targets machine builders who need fast counting, PWM, and Ethernet connectivity in one DIN-rail package. Engineers typically deploy the TM221ME32TK in packaging, labeling, and small assembly cells. The controller executes Boolean instructions in 0.2 µs and supports up to seven expansion modules.

Summary

• The Modicon M221 series delivers a 32 I/O transistor controller with a built-in Ethernet port and RJ45 serial link.
• Sixteen discrete inputs include four fast channels rated for 100 kHz high-speed counting and 5 µs turn-on response.
• Sixteen PNP transistor outputs include two fast channels for PWM and pulse train output at 100 kHz.
• Two analog inputs offer 10-bit resolution, 10 mV LSB, and 1 ms conversion time per channel.
• The controller supports Modbus TCP, Ethernet/IP adapter, and Modbus RTU/ASCII master or slave protocols.
• Schneider Electric backs the M221 range with a 256 kB application memory and a real-time clock.

Technical Specifications

• Brand: Schneider Electric
• Model: TM221ME32TK
• Series: Modicon M221
• Product type: Logic controller with 32 discrete I/O
• Rated supply: 24 V DC, operating limits 20.4 to 28.8 V
• Power consumption: 4.2 W without expansion, 23.2 W with maximum expansion
• Discrete inputs: 16 sink or source inputs, 4 fast inputs, 7 mA typical current
• Input response: 5 µs turn-on for fast inputs, 35 µs for standard inputs
• Analog inputs: 2 channels, 0 to 10 V range, 10-bit resolution, 10 mV LSB
• Analog accuracy: ±1 % of full scale, 1 ms conversion per channel plus one cycle
• Discrete outputs: 16 transistor PNP source outputs, 0.1 A per output, 24 V DC
• Output response: 5 µs for Q0 and Q1, 50 µs for Q2 and Q3, 300 µs for other terminals
• Output frequency: 100 kHz PWM/PLS on Q0 and Q1, 5 kHz on Q2 and Q3
• Common current: 1.6 A per output common, leakage 0.1 mA, drop ≤1 V
• Protection: Short-circuit and overload protection at 1 A with automatic reset after 1 s
• Memory: 256 kB application and data RAM, 256 kB internal variables, 256 kB flash backup
• Data storage: Optional 2 GB SD card, BR2032 battery with 4-year life
• Execution speed: 0.2 µs per Boolean instruction, 0.3 ms per 1 K event task instructions
• Object areas: 512 %M bits, 8000 %MW words, 255 timers, 255 counters
• Real-time clock: Built in, drift ≤30 s per month at 25 °C
• Regulation: Adjustable PID regulator for up to 14 simultaneous loops
• Positioning: PTO with 2 axes pulse/direction or 1 axis CW/CCW at 100 kHz
• Counting: 4 fast inputs in HSC mode, 32-bit capacity, A/B and pulse/direction modes
• Ethernet: 1 RJ45 port, 10BASE-T/100BASE-TX, 100 m copper cable
• Serial link: 1 RJ45 RS232/RS485 port, 1.2 to 115.2 kbit/s, Modbus RTU/ASCII
• USB: Mini B USB 2.0 programming port, 480 Mbit/s
• Protocols: DHCP client, Ethernet/IP adapter, Modbus TCP server/client/slave
• Isolation: 500 V AC between fast input and internal logic, 500 V AC between output and logic
• Mounting: TH35-15 or TH35-7.5 DIN rail, panel mount with fixing kit
• Dimensions: 90 mm height, 70 mm depth, 70 mm width, 0.27 kg weight
• Ambient temperature: -10 to 55 °C horizontal, -10 to 35 °C vertical operation
• Storage temperature: -25 to 70 °C, relative humidity 10 to 95 % without condensation
• Protection degree: IP20 with protective cover, pollution degree ≤2
• Altitude: 0 to 2000 m operating, 0 to 3000 m storage
• Vibration resistance: 3.5 mm at 5 to 8.4 Hz, 1 gn at 8.4 to 150 Hz
• Shock resistance: 147 m/s² with 11 ms test wave duration
• Standards: EN/IEC 60664-1, EN/IEC 61131-2, EN/IEC 61010-2-201
• Certifications: ABS, CSA, cULus, LR, IACS E10, RCM, EAC, DNV-GL
• Marking: CE

Environmental Resistance and Immunity

• Electrostatic discharge withstands 4 kV on contact and 8 kV in air per EN/IEC 61000-4-2.
• Radiated field immunity reaches 10 V/m from 80 MHz to 1 GHz per EN/IEC 61000-4-3.
• Magnetic field immunity holds 30 A/m at 50/60 Hz per EN/IEC 61000-4-8.
• Fast transient immunity reaches 2 kV on power lines and 1 kV on I/O per EN/IEC 61000-4-4.
• Surge withstand reaches 2 kV common mode on AC power lines per EN/IEC 61000-4-5.
• Conducted disturbance immunity reaches 10 Vrms from 0.15 to 80 MHz per EN/IEC 61000-4-6.
• Marine specification immunity covers 3 Vrms from 0.1 to 80 MHz for LR, ABS, DNV, and GL.
• Conducted emissions meet EN/IEC 55011 limits on AC power lines from 0.15 to 0.5 MHz.
• Radiated emissions meet EN/IEC 55011 class A limits at 10 m from 30 to 230 MHz.
• Microbreak immunity holds 10 ms, and the unit operates in ordinary and hazardous locations.

Installation Guide

• Mount the controller on a TH35-15 or TH35-7.5 rail per IEC 60715, or fix it to a panel with the kit.
• Connect 24 V DC to the three-terminal power block, respecting the 20.4 to 28.8 V limit.
• Wire discrete inputs to the 20-terminal HE-10 connector, using shielded cable up to 10 m for fast inputs.
• Wire discrete outputs to the second HE-10 connector, using unshielded cable up to 30 m.
• Connect analog inputs to the four-terminal connector, using unshielded cable up to 1 m.
• Use shielded cable up to 3 m for fast outputs to preserve 100 kHz PWM and PLS signals.
• Keep the RJ45 Ethernet cable within 100 m of copper cable for reliable 10/100 Mbit/s links.
• Fit the protective cover to maintain IP20 protection and keep pollution degree at 2 or lower.
• Respect the 55 °C horizontal and 35 °C vertical ambient limits during continuous operation.
• Insert an optional 2 GB SD card for application and data backup before commissioning.

Package List

• 1 × Schneider Electric TM221ME32TK Modicon M221 logic controller
• 1 × Power supply terminal block, 3 terminals
• 1 × Analog input connector, 4 terminals
• 2 × HE-10 connectors, 20 terminals each, for inputs and outputs
• 1 × Fixing kit for plate or panel mounting
• 1 × Protective cover for IP20 protection
• 1 × Quick start documentation

Shipping

• We ship the controller by FedEx, UPS, or DHL according to your delivery preference.
• Orders leave the warehouse within 1 to 3 business days after payment confirmation.
• Tracking numbers reach you by email once the carrier scans the parcel.

FAQ

• Q: Does the TM221ME32TK support high-speed counting?
  A: Yes. Four fast inputs run in HSC mode at 100 kHz with 32-bit counting capacity.
• Q: Which output type does this controller use?
  A: It uses 16 transistor PNP source outputs at 24 V DC and 0.1 A per channel.
• Q: Can I expand the I/O beyond 32 points?
  A: Yes. You can add up to seven expansion modules with relay output.
• Q: What Ethernet services does the controller offer?
  A: It provides DHCP client, Ethernet/IP adapter, and Modbus TCP server, client, and slave services.
• Q: How many PID loops can run at once?
  A: The adjustable PID regulator handles up to 14 simultaneous loops.
• Q: What is the analog input resolution?
  A: Each of the two analog inputs offers 10-bit resolution with a 10 mV LSB value.
• Q: Which battery keeps the clock and backup alive?
  A: A BR2032 lithium non-rechargeable battery provides 4-year life and 1-year backup at 25 °C.
• Q: How do I back up the application?
  A: Use the built-in 256 kB flash memory or an optional 2 GB SD card.

© 2026 Ubest Automation Limited. https://www.ubestplc.com/ All rights reserved.

Contact: sales@ubestplc.com Phone +86 86 180 3000 5825