Modicon M251 Micro PLC

Schneider Electric PLC Processors are programmable automation controllers that function as the core of the customizable PLC built with processors, I/O modules, backplanes, power supplies, and optional networking. This modular approach allows for expansion and flexibility in the design of logic controllers and automation controllers for industrial control systems.

Schneider Electric Modicon M251 Micro PLCs are designed to handle more advanced machine automation as a master of communications. They have dual-channel support for Ethernet, Serial and CANopen based communications to handle both upstream and downstream communications. They can control devices such as drives, remote I/O, motion and HMIs as well as being the master controller for multiple other PLCs. They are expandable with TM3 I/O modules to handle up to a few hundred I/O points and programs with Machine Expert software. Access to machines is provided via Ethernet, which can simplify maintenance with any mobile device through visualization pages designed directly inside Machine Expert and stored in the PLC’s web server. 

The M251 Controller is a part of Schneider Electric’s EcoStruxureTM Machine, which is a complete architecture that brings capabilities to smart machines. The M251 Controller easily connects to EcoStruxure Machine Advisor, a digital tool for machine builders, and will gain insight into machines by enabling asset monitoring and predictive maintenance.

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