Schneider Electric TM221CE40R Overview The TM221CE40R is a Modicon M221 series logic controller with 40 I/O points (24 digital inputs, 16 relay outputs), integrated Ethernet and USB, and support for analog signal acquisition. Powered by 100–240 V AC, it is ideal for machine-level or process automation applications that require compact and versatile PLC control. Key Features I/O Count: 24 digital inputs + 16 relay outputs Outputs: Normally-open relay, 2 A max per output Analog Inputs: 2 × 0–10 V, 10-bit resolution Communications: 1 × Ethernet (10/100 Mbps) 1 × USB programming port 1 × Serial port (RJ45) supporting RS-232/RS-485 Power Input: 100–240 V AC, 50/60 Hz Expansion Capacity: Up to 7 TM3 I/O expansion modules Memory: 256 kB user program/data, 256 kB variables, optional SD card slot Programming Tools: Configurable with EcoStruxure Machine Expert Basic Technical Specifications Catalog Number: TM221CE40R I/O Configuration: 40 points total Supply Range: 85–264 V AC, 47–63 Hz Input Current: < 1 A typical Clock Drift: < 30 s/month @ 25 °C Environmental Rating: IP20 Operating Temp: –10 °C to +55 °C Storage Temp: –25 °C to +70 °C Certifications: CE, UL, CSA, ABS, DNV‑GL, RCM, EAC Mechanical Rating: DIN-rail or panel mount, weighs approximately 0.45 kg Vibration/Shock: Rated 3 gn / 30 gn Cycle Time: ~0.3 µs per Boolean instruction Response Times: Digital inputs: ≤10 ms Analog: 1 ms per channel + scan Expansion Bus Supply: 24 V DC for TM3 I/O modules Applications Compact PLCs for OEM machines and equipment Process control, batching, and packaging machinery Remote HMI and SCADA I/O tasks Industrial control environments needing Ethernet and USB access Systems requiring fast logic and analog integration Why Choose the TM221CE40R Versatile I/O: Combined digital, relay, and analog support Flexible Communication: Ethernet, USB, and serial built-in Expandable: Supports TM3 expansion modules Compact & Reliable: DIN-rail design with high environmental tolerance Professional Grade: Certifications and rugged build for industrial use Order Now The Schneider Electric TM221CE40R PLC with 40 I/O and Ethernet is available and ships worldwide.