Specifications Parameter Category Details Manufacturer & Series Schneider Electric, Modicon TM221 (M221 Nano Series) Complete Model Number TM221C16T Product Type Compact Logic Controller (PLC) with Embedded I/O CPU Performance High-speed processor, typical execution speed: ~0.5 µs per Boolean instruction. Embedded I/O • 16x Digital Inputs: 24V DC, sink/source configurable. • 10x Digital Outputs: Transistor, Sourcing (PNP), 24V DC, 0.5 A per point. High-Speed Functions (on Inputs) 4 inputs (I0 to I3) can be used as high-speed counters (HSC) up to 10 kHz. Pulse Train Output (PTO) 2 outputs (Q0 and Q1) can be configured as PTO (Pulse Train Output) for controlling stepper or servo drives (via an expansion module interface). Expansion Capability Supports connection of up to 4 TM3 expansion modules for additional I/O or communication functions. User Memory ~16 KB for user program (Ladder Diagram). Data Memory ~8 KB for retentive data. Real-Time Clock (RTC) Integrated, but requires an optional battery (CR2032) for backup. Battery not included in standard delivery. Communication Ports • 1x Ethernet Port (RJ45): Modbus TCP (client/server), Ethernet/IP adapter, SoMachine Basic network (for programming, HMI connection). • 1x Serial Port (Mini DIN): Modbus (Master/Slave), ASCII, SoMachine Basic network. Programming Standard Compliant with IEC 61131-3. Supported Languages Ladder Diagram (LD) exclusively in EcoStruxure Machine Expert - Basic. Programming Software EcoStruxure Machine Expert - Basic (free software). Power Supply 24V DC (19.2 - 28.8V DC). Power Consumption Typically 10W (from 24V DC supply). The total load current of all active transistor outputs must be considered for power supply sizing. Operating Temperature 0°C to +55°C Storage Temperature -25°C to +70°C Relative Humidity 5% to 95% (non-condensing) Protection Rating IP20 (for installation inside an enclosure). Mounting DIN rail (35mm) mounting. Dimensions (W x H x D) Approximately 90 mm x 100 mm x 75 mm. Certifications cULus, CE, RoHS compliant. Typical Applications Small conveyor systems, sorting machines, packaging units, material handling equipment, and standalone machines requiring a mix of sensor inputs and actuator (solenoid valve, relay, indicator light) control with 24V DC.