Modicon M221 TM221CE24R Logic Controller: 24 I/O Relay and Ethernet Control

The TM221CE24R from Schneider Electric belongs to the Modicon M221 logic controller range. This unit combines 14 discrete inputs, 2 analog inputs, and 10 relay outputs on a single 100...240 V AC platform. Engineers choose the TM221CE24R for compact machines that need Ethernet connectivity and hard-wired relay switching. The controller runs Boolean instructions in 0.2 µs and supports up to 7 expansion modules.

Summary

• Brand and model: Schneider Electric Modicon M221, reference TM221CE24R.
• I/O layout: 24 discrete I/O total, built from 14 digital inputs, 2 analog inputs, and 10 relay outputs.
• Analog front end: 10-bit resolution with 10 mV LSB value and 1 ms conversion time per channel.
• Communication: one RJ45 Ethernet port plus RS232/RS485 serial link and mini B USB 2.0 port.
• Control capacity: 512 %M bits, 8000 %MW words, 255 timers, 255 counters, and 14 PID loops.

Technical Specifications

• Brand: Schneider Electric; Series: Modicon M221; Model: TM221CE24R.
• Supply voltage: 100...240 V AC, 50/60 Hz, with 85...264 V limits and inrush current up to 40 A.
• Power consumption: 35 VA without expansion, 58 VA with the maximum number of expansion modules.
• Discrete inputs: 14 channels, IEC 61131-2 Type 1, sink or source logic, 24 V DC, 7 mA input current.
• Fast inputs: 4 HSC channels at 100 kHz, 32-bit counting capacity, A/B, pulse/direction, and single phase modes.
• Analog inputs: 2 channels, 0...10 V range, 10-bit resolution, 10 mV LSB, ±1 % full scale accuracy.
• Analog overload: ±13 V DC permanent, ±30 V DC for 5 minutes maximum.
• Relay outputs: 10 normally open channels, 2 A per output, 5...250 V AC and 5...125 V DC.
• Output limits: 277 V AC and 125 V DC maximum; 7 A per COM 0 and COM 1, 4 A per COM 2.
• Response time: 5 µs fast input turn-on/off, 35 µs standard input turn-on, 10 ms output turn-on/off.
• Filtering: configurable 0 ms, 3 ms, or 12 ms input filtering.
• Mechanical durability: 20,000,000 cycles for relay output; minimum load 1 mA at 5 V DC.
• Electrical durability: 300,000 cycles at AC-14 240 V / 72 VA; 100,000 cycles at AC-14 240 V / 240 VA.
• Memory: 256 kB internal RAM for variables, 256 kB application and data RAM with 10,000 instructions.
• Backup: 256 kB built-in flash, optional 2 GB SD card, BR2032 battery with 4-year life and 1-year backup.
• Real-time clock: drift ≤30 s/month at 25 °C; PID regulation up to 14 simultaneous loops.
• Ethernet: 10BASE-T/100BASE-TX, RJ45, 100 m copper cable, DHCP client, Modbus TCP server/client, Ethernet/IP adapter.
• Serial link: non-isolated RS232/RS485, 1.2...115.2 kbit/s, Modbus RTU/ASCII master/slave, 3 m and 15 m bus lengths.
• USB: mini B USB 2.0, 480 Mbit/s, SoMachine-Network protocol, 5 V 200 mA supply.
• Insulation: 2300 V AC between supply and internal logic; 1500 V AC between output and ground.
• Operating temperature: -10...35 °C vertical, -10...55 °C horizontal; storage -25...70 °C.
• Humidity and altitude: 10...95 % without condensation; 0...2000 m operating, 0...3000 m storage.
• Protection: IP20 with cover in place, pollution degree ≤2, 10 ms microbreak immunity.
• EMC: 4 kV contact and 8 kV air ESD; 10 V/m radiated field immunity from 80 MHz to 1 GHz.
• Transients and surges: 2 kV fast transients on power lines and relay output; 2 kV common mode surge on AC power lines.
• Vibration: 1 gn at 8.4...150 Hz; shock 98 m/s² for 11 ms.
• Dimensions and weight: 70 mm height, 70 mm depth, 110 mm width, 0.395 kg.
• Mounting: plate or panel with fixing kit, or TH35-7.5 and TH35-15 rails per IEC 60715.
• Standards and certifications: EN/IEC 60664-1, EN/IEC 61131-2, EN/IEC 61010-2-201; CE, CSA, CULus, LR, IACS E10, RCM, EAC, DNV-GL.

Analog Measurement Chain

• Resolution: the 10-bit converter divides the 0...10 V span into 1024 steps for repeatable setpoint reading.
• LSB value: each step equals 10 mV, so small sensor changes remain visible to the program.
• Conversion time: 1 ms per channel plus one controller cycle, suitable for pressure and temperature loops.
• Accuracy: ±1 % of full scale covers the complete analog input range without external trimming.
• Input impedance: 100 kOhm on analog channels limits loading on the signal source.
• Cable length: use shielded cable up to 10 m for fast inputs and unshielded cable up to 1 m for analog inputs.

Installation Guide

• Mount the controller on a TH35-7.5 or TH35-15 rail, or fix it to a panel with the supplied kit.
• Keep the 70 mm depth clearance for wiring and the 110 mm width free for terminal access.
• Connect 100...240 V AC to the 3-terminal power block and respect the 85...264 V supply window.
• Wire discrete inputs with unshielded cable up to 30 m; use shielded cable up to 10 m for fast inputs.
• Feed analog sensors with 0...10 V signals and keep analog cables at 1 m or less.
• Respect output commons: COM 0 and COM 1 carry 7 A each, while COM 2 carries 4 A.
• Reserve 20 switching operations per minute for maximum relay load and observe the 1 mA minimum load.
• Fit the BR2032 battery to keep the real-time clock and data backup active during power loss.
• Insert an optional 2 GB SD card for application and data storage.
• Verify IP20 protection by keeping the protective cover in place after wiring.

Package List

• 1 x Schneider Electric Modicon M221 TM221CE24R logic controller.
• 1 x removable screw terminal block for inputs.
• 1 x removable screw terminal block for outputs.
• 1 x 3-terminal block for the 24 V DC power supply.
• 1 x 4-terminal connector for analog inputs.
• 1 x BR2032 lithium battery.
• 1 x fixing kit for panel mounting.

Shipping

• FedEx, UPS, and DHL handle dispatch for this controller.
• Each unit ships in protective packaging that matches the 0.395 kg product weight.
• The shipping team confirms the carrier and tracking number after order release.

FAQ

• Q: How many relay outputs does the TM221CE24R provide? A: It provides 10 normally open relay outputs rated 2 A at 5...250 V AC or 5...125 V DC.
• Q: Does this controller accept analog sensors? A: Yes, it offers 2 analog inputs with 0...10 V range and 10-bit resolution.
• Q: Which communication ports are available? A: The unit includes RJ45 Ethernet, RS232/RS485 serial, and mini B USB 2.0 ports.
• Q: How many expansion modules can I connect? A: You can attach up to 7 expansion modules for relay or transistor output.
• Q: What is the relay mechanical life? A: The relay output reaches at least 20,000,000 mechanical cycles.
• Q: Can the controller run PID loops? A: Yes, it supports up to 14 simultaneous PID regulation loops.
• Q: What battery does the real-time clock use? A: A BR2032 lithium non-rechargeable battery with a 4-year life.
• Q: What is the operating temperature range? A: -10...55 °C horizontal installation and -10...35 °C vertical installation.

Contact

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