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TM221M16R

The Schneider Electric TM221M16R is a Modicon TM221 Nano series compact PLC. This model features 16 embedded digital inputs, 8 embedded relay outputs, an integrated Real-Time Clock (RTC) with battery backup, and Ethernet connectivity. Designed for small automation applications requiring isolated switching of AC/DC loads, it supports IEC 61131-3 programming via EcoStruxure Machine Expert - Basic software.

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Parameters Parameter Category Details Model TM221M16R Series Modicon TM221 (Nano) Product Type Compact PLC with Relay Outputs Embedded Digital I/O 16x Digital Inputs (24V DC) 8x Relay Outputs (Form C contacts, 2A @ 250V AC / 30V DC) High-Speed I/O 4x High-Speed Counters (HSC, up to 10 kHz) Expansion Capability Up to 4 TM3 expansion modules Memory ~16 KB program memory, ~8 KB data memory Real-Time Clock (RTC) Integrated with battery backup (CR2032 battery required, not included) Communication Ports 1x Ethernet (Modbus TCP) 1x Serial (Modbus) Programming Standard IEC 61131-3 Supported Languages Ladder Diagram (LD) Programming Software EcoStruxure Machine Expert - Basic Power Supply 24V DC Protection Rating IP20 Mounting DIN rail (35mm) Typical Applications Control panels with mixed AC/DC loads (solenoids, contactors, indicators), small conveyor systems, lighting control, HVAC control