Schneider Electric TM221CE16T Modicon M221 16-IO 24V DC Transistor Ethernet PLC

The Schneider Electric TM221CE16T is a Modicon M221 logic controller with 16 discrete I/O — 9 inputs (4 fast) and 7 transistor outputs (2 fast) — plus 2 analog inputs, powered from 24 V DC. It integrates Ethernet, RS232/RS485 serial, and USB ports, supports up to 4 local or 11 remote I/O expansion modules, and carries an IP20 rating.

Technical Specifications

Certifications & Standards

• CE
• EAC
• DNV-GL
• RCM
• ABS
• cULus
• LR
• UKCA
• cULus HazLoc
• IEC 61131-2
• UL 508
• CAN/CSA C22.2 No. 213
• IACS E10
• ANSI/ISA 12-12-01

Selection Notes

The TM221CE16T's 9 DI / 7 DO transistor mix, including 4 fast inputs and 2 fast transistor outputs at up to 100 kHz, suits compact machines needing high-speed counting or pulse output without stepping up to the M241 platform. Its built-in Ethernet port and Modbus TCP/Ethernet-IP services let it network directly without an add-on communication module, and the 4-module local expansion limit (11 remote) sets the ceiling before a larger M221 or M241 controller is needed.

Applications

Compact standalone machine control with Ethernet networking, high-speed counting, and PWM/pulse-train output on small automation cells.