Modicon M221PLC

Compact/book logic controller for small machines, programmed in EcoStruxure Machine Expert – Basic (ladder/IL/grafcet); serial line and, on ‘E’ models, Ethernet with Modbus TCP and EtherNet/IP adapter.

Manufacturer: Schneider Electric
Product line: Modicon
Device type: PLC
Communication: Modbus Ethernet and IP networking RS-485
Engineering software: EcoStruxure Machine Expert – Basic

Documentation · 2

Modicon M221 Logic Controller, Hardware Guide

EIO0000003313 · Revision 04 · EN

Hardware manual

Installation, wiring of embedded I/O and cartridges, serial and Ethernet ports, LEDs and technical data of M221.

Official title: Modicon M221 Logic Controller, Hardware Guide
: se.com document page EIO0000003313, version 04 (the page always serves the current version).

Open on manufacturer site download page — always the current edition

Link verified 2026-10-02

Modicon M221 logic controller — Programming Guide

EIO0000003297 · EN

Programming manual

Configuration and programming of the M221 in EcoStruxure Machine Expert – Basic: I/O, embedded communication (including Modbus), objects and controller states.

Official title: Modicon M221 Logic Controller — Programming Guide
Models: TM221
: Manufacturer download page; it always serves the current edition.

Open on manufacturer site download page — always the current edition

Link verified 2026-10-01

Diagnostics · 0

No reviewed diagnostic records for this family yet.

Related tools · 14

PLC Data Types & Ranges TIME & S5TIME Converter PLC RAW Scaling Analog signal Interlock matrix FB generator Modbus Address Converter Modbus Data Converter Modbus RTU Frame Parser Modbus CRC16 Calculator IPv4 Subnet Calculator Modbus TCP / MBAP Parser Modbus Frame Builder Serial line timing

Open in Knowledge Graph →