TM221CE24T Modicon M221 Logic Controller – 24 I/O Transistor PNP with Ethernet

The TM221CE24T from Schneider Electric belongs to the Modicon M221 range. This logic controller combines 14 discrete inputs, 2 analog inputs, and 10 transistor PNP outputs. It runs on 24 V DC and includes USB, Ethernet, and serial links. Engineers choose this model for compact machines that need fast counting, PWM, and PID control.

Summary

• The TM221CE24T delivers 24 I/O in a 110 mm wide housing for tight panels.
• Fast inputs reach 100 kHz for high-speed counting and pulse capture tasks.
• Transistor outputs support 0.5 A per point and 5 A per common line.
• Ethernet, USB, and RS232/RS485 ports cover programming and field communication.
• Built-in PID handles up to 14 simultaneous loops without extra modules.

Technical Specifications

• Brand: Schneider Electric; Model: TM221CE24T; Series: Modicon M221.
• Supply voltage: 24 V DC; limits 20.4–28.8 V; inrush current ≤ 35 A.
• Power consumption: ≤ 4.8 W without expansion; ≤ 14 W with maximum expansion.
• Discrete inputs: 14 type 1 inputs; 4 fast inputs; sink or source logic.
• Analog inputs: 2 channels; 0–10 V range; 10-bit resolution; 10 mV LSB.
• Analog accuracy: ±1 % of full scale; conversion 1 ms per channel plus one cycle.
• Discrete outputs: 10 transistor outputs; positive logic (source); 24 V DC; 0.5 A each.
• Fast outputs: Q0–Q1 reach 100 kHz in PWM/PLS mode; Q2–Q3 reach 5 kHz.
• Response times: 5 µs for fast input turn-on/turn-off; 300 µs for standard output channels.
• Memory: 256 kB application and data RAM; 256 kB internal variables; 256 kB flash backup.
• Instruction speed: 0.2 µs per Boolean instruction; 0.3 ms per 1 K instructions for event tasks.
• Object areas: 8000 %MW words; 512 %M bits; 255 %TM timers; 255 %C counters; 512 %KW words.
• Real-time clock: built-in; drift ≤ 30 s/month at 25 °C; backup 1 year at 25 °C.
• Positioning: 2 PTO axes in pulse/direction mode; 1 PTO axis in CW/CCW mode; 100 kHz.
• Counting: 4 fast inputs in HSC mode; 32-bit capacity; A/B, single phase, pulse/direction.
• Communication: Ethernet RJ45 10/100BASE-TX; USB mini B 2.0; RS232/RS485 RJ45 serial link.
• Protocols: Modbus TCP client/server; Ethernet/IP adapter; Modbus RTU/ASCII master/slave.
• Insulation: 500 V AC between input and internal logic; 500 V AC between output and internal logic.
• Operating temperature: −10 to 55 °C horizontal; −10 to 35 °C vertical.
• Storage temperature: −25 to 70 °C; relative humidity 10–95 % without condensation.
• Protection: IP20 with cover; pollution degree ≤ 2; operating altitude 0–2000 m.
• Immunity: 4 kV contact ESD; 8 kV air ESD; 10 V/m fields from 80 MHz to 1 GHz.
• Transients: 2 kV power lines; 1 kV I/O; surge 2 kV common mode for power lines.
• Vibration: 3.5 mm at 5–8.4 Hz; 1 gn at 8.4–150 Hz on rail or panel.
• Shock: 147 m/s² for 11 ms; mechanical durability ≥ 20,000,000 cycles for transistor output.
• Dimensions: 90 mm height; 70 mm depth; 110 mm width; weight 0.395 kg.
• Mounting: TH35-15 or TH35-7.5 rail; plate or panel with fixing kit.
• Standards: EN/IEC 61131-2; EN/IEC 60664-1; EN/IEC 61010-2-201; CE marking.
• Certifications: cULus, RCM, DNV-GL, LR, CSA, EAC, ABS, IACS E10.

Input and Output Behavior

• State 1 input voltage ≥ 15 V; state 0 input voltage ≤ 5 V.
• State 1 current ≥ 4.2 mA for discrete inputs; ≥ 2.6 mA for fast inputs.
• Input impedance: 3.4 kOhm for discrete inputs; 4.9 kOhm for fast inputs; 100 kOhm for analog.
• Configurable filtering: 0 ms, 3 ms, or 12 ms per input channel.
• Output leakage current 0.1 mA; voltage drop ≤ 1 V; overload and short-circuit protection at 1 A.
• Automatic reset time 1 s; tungsten load ≤ 12 W for output and fast output.
• Current per output common 5 A; cable length ≤ 30 m unshielded for digital I/O.
• Fast input cable ≤ 10 m shielded; fast output cable ≤ 3 m shielded; analog cable ≤ 1 m unshielded.

Communication and Expansion

• Ethernet services include DHCP client, Modbus TCP server, Modbus TCP client, and Ethernet/IP adapter.
• Serial link supports 1.2–115.2 kbit/s over 15 m for RS485 and 3 m for RS232.
• USB port supports 480 Mbit/s and SoMachine-Network protocol for programming.
• Expansion bus supports up to 7 transistor output modules or 7 relay output modules.
• Expansion bus supply: 0.52 A at 5 V; 0.2 A at 24 V.
• SD card slot accepts 2 GB optional card; battery BR2032 supports 4-year life.

Installation Guide

• Mount the controller on a TH35-15 or TH35-7.5 rail, or fix it to a panel with the kit.
• Keep 24 V DC supply wiring short and use the 3-terminal block for power connection.
• Use shielded cable for fast inputs and fast outputs to protect 100 kHz signals.
• Route analog input cable separately; keep length ≤ 1 m and use unshielded wire.
• Connect inputs and outputs to removable screw terminal blocks for quick service.
• Respect the 55 °C horizontal limit and the 35 °C vertical limit for full performance.
• Maintain pollution degree ≤ 2 and keep the protective cover in place for IP20 protection.
• Check 500 V AC insulation boundaries between I/O and internal logic before commissioning.

Package List

• 1 × TM221CE24T Modicon M221 logic controller.
• 1 × removable screw terminal block for inputs.
• 1 × removable screw terminal block for outputs.
• 1 × 3-terminal block for 24 V DC power supply.
• 1 × 4-terminal connector for analog inputs.
• 1 × fixing kit for plate or panel mounting.
• 1 × protective cover for IP20 protection.
• Shipping methods: FedEx, UPS, and DHL.

FAQ

• Q: What makes the TM221CE24T suitable for fast counting? A: Four fast inputs reach 100 kHz with 32-bit HSC capacity.
• Q: Does this controller support PID control? A: Yes, it runs up to 14 simultaneous PID loops.
• Q: Which outputs does the controller provide? A: It provides 10 transistor PNP outputs with 0.5 A per point.
• Q: Can I expand I/O later? A: Yes, the expansion bus supports up to 7 transistor or relay modules.
• Q: What communication ports are available? A: Ethernet RJ45, USB mini B, and RS232/RS485 serial link.
• Q: What is the analog input resolution? A: 10 bits with 10 mV LSB and ±1 % full-scale accuracy.
• Q: How do I mount the unit? A: Use TH35-15 or TH35-7.5 rail, or a panel with the fixing kit.
• Q: What shipping carriers do you use? A: We ship by FedEx, UPS, and DHL.

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