Product details
TM221CE40T – Modicon M221 Logic Controller
Schneider Electric M221 – compact PLC with 40 I/O, transistor outputs, and Ethernet. Runs on 24 V DC. Great for small machines and simple automation.
Product Tree – Key Specs
- Range
- Modicon M221 – logic controller
- Supply
- 24 V DC (19.2…28.8 V limits)
- Inrush ≤ 35 A
- Power ≤ 17 W
- Discrete I/O
- 24 inputs (sink/source, 24 V DC)
- 4 fast inputs (response 5 µs)
- 16 transistor outputs (0.5 A, 24 V DC)
- 2 fast outputs (PWM/PTO up to 100 kHz)
- Analog
- 2 inputs – 0…10 V
- 10-bit resolution (10 mV per bit)
- Accuracy ±1 % full scale
- Memory & Performance
- 256 kB program memory (10k instructions)
- 0.3 ms per 1k instructions
- 0.2 µs per Boolean instruction
- Optional SD card (2 GB)
- BR2032 battery – 4 years life
- Communication
- Ethernet (RJ45) – Modbus TCP client/server
- Serial link (RS232/RS485) – Modbus master/slave
- USB (mini B) – programming
- Environment & Certifications
- CE, CSA, cULus, RCM, IACS E10
- IP20 with cover
- Operation: -10…55 °C (horizontal), -10…35 °C (vertical)
- Humidity: 10…95 % RH (non-condensing)
- Vibration: 3.5 mm (5…8.4 Hz), 3 gn (8.4…150 Hz)
- Shock: 15 gn for 11 ms
- EMC – IEC 61000-4-2, -3, -4, -5, -6, -8
- Installation
- DIN rail (TH35-7.5 or TH35-15) or panel mount
- Removable screw terminals for I/O
- Mini USB for programming
Expert Review – Controls Specialist
“The M221 is a solid choice for basic logic and motion. Fast inputs respond in 5 µs – great for counting or positioning. Ethernet built-in saves cost. Easy to program with EcoStruxure Machine Expert.” – Senior Automation Engineer
Manager’s Insight – Production Manager
“We use 10 units on packaging lines. The transistor outputs are reliable – no relay failures. 17 W power keeps energy low. Setup is quick, and the SD card backup is a lifesaver during maintenance.” – Plant Operations Manager
Typical Applications
- Simple packaging machines (filling, capping, labeling)
- Conveyor control with speed monitoring
- Small assembly stations
- HVAC fan and damper control
- Water treatment – pump sequencing
Compatible Devices
- Schneider Magelis HMIs
- Altivar ATV12 / ATV320 drives
- TeSys D contactors
- Modbus RTU/TCP sensors and actuators
Comparison – Which M221 to choose?
- TM221CE40T (this model): 24 V DC, transistor outputs, Ethernet – best for small machines with fast counting.
- TM221C40R – relay outputs, 24 V DC – for lighter loads.
- TM221M16T – 16 I/O, transistor – compact and low cost.
- TM221ME32T – Ethernet, 32 I/O – more I/O for mid-size systems.
Selection Guide – Quick tips
- Need fast counting? This model has 4 fast inputs (5 µs) and 2 fast outputs (100 kHz).
- Need analog? 2 analog inputs are built-in – no extra module needed.
- Need relay outputs? Choose TM221C40R instead.
- Need more I/O? Add up to 7 expansion modules.
- Best value: TM221CE40T gives you Ethernet, analog, and fast I/O in one package.
Frequently Asked Questions
- Q: What is the supply voltage range?
- A: 19.2…28.8 V DC. Nominal is 24 V DC.
- Q: How many fast inputs?
- A: 4 fast inputs (I2…I5) with 5 µs response.
- Q: Can I use it with 120 V AC?
- A: No – this model is 24 V DC only. Use a power supply.
- Q: Does it support PWM?
- A: Yes – 2 fast outputs (Q0, Q1) support PWM up to 100 kHz.
- Q: What software do I need?
- A: EcoStruxure Machine Expert (free) or SoMachine.
- Q: Is Ethernet built-in?
- A: Yes – RJ45 port supports Modbus TCP.
- Q: Can I expand I/O?
- A: Yes – up to 7 expansion modules.
- Q: How long is the warranty?
- A: 12 months – parts and labor.
- Q: What about shipping?
- A: Orders ship within 12-24 hours via FedEx, UPS, or DHL.
- Q: Does it have a battery?
- A: Yes – BR2032 lithium battery lasts 4 years.
Pro Tips from the Field
- Use shielded cables for fast inputs and outputs – reduces noise.
- Set filter time to 0 ms for fastest response.
- Keep the controller at least 50 mm from high-voltage wires.
- Backup your program to the SD card after each change.
- Check the LED status – ERR, RUN, and I/O LEDs help quick troubleshooting.
Contact Information
Sales: sales@powergearx.com
WhatsApp: +86 18030005825
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