Modicon M251 - Logic Controller The Modicon M251 with CANopen or Modbus TCP let you easily connect to SCADA, MES, ERP by standard Ethernet cables and even via Wi-Fi. Boost your machine’s performance with data transfer via SD Card, embedded web server and more. Get unlimited access to your machine via Ethernet - everywhere and any time and simplify maintenance with any mobile device through visualization pages designed directly inside SoMachine and stored in the PLC’s web server. M251 Logic Controller Ultra compact format Expansion bus Modicon TM3 Up to 14 fast expansion modules SD card slot Embedded Web- and FTP Server 22μs by instruction 64MB RAM 128MB Flash Serial line and USB port CANopen or Modbus TCP Embedded Ethernet switch with 2 ports Up to 3 communication modules Programming with SoMachineBasic software All programming, visualization, and commissioning are handled in just one intuitive tool Schneider Electric Modicon M251 The Modicon M251 logic controller is a MachineStruxure controller. The next generation of MachineStruxure from Schneider Electric is an intuitive solution for machine automation with all the features and functions you need to build machines that will improve your bottom line. From design and development, to commissioning and maintenance, MachineStruxure is a complete machine building solution with benefits all through the machine life cycle.