Schneider Electric TM221CE16T M221 Controller

TM221CE16T is a Modicon M221 logic controller that packs 16 I/O into a compact unit—9 digital inputs and 7 digital transistor outputs of the PNP type—with Ethernet connectivity for straightforward network access. It is designed to be expanded with Modicon TM3 expansion modules to create local, remote, or distributed I/O configurations, letting you tailor the system size and topology to the application. This 16 IO variant is consistently described by Schneider Electric and major distributors as the M221-16IO with transistor PNP outputs and Ethernet, underscoring its role as a small, scalable controller in compact automation tasks. Ethernet support enables standard TCP/IP communication for programming, status monitoring, and integration with other devices on the control network. The TM221CE16T designation identifies this specific 16 IO model in the M221 line, and its compatibility with TM3 expansions provides a straightforward path to grow I/O without replacing the base controller. Available through Schneider Electric’s regional pages as well as major distributors such as Mouser and DigiKey, the TM221CE16T delivers a compact, networked control solution for small machines and straightforward automation projects.