Modicon M251 Plc Page 4 Modicon M251 logic controllers

4 Presentation Modicon M251 logic controllers General presentation Presentation Applications Modicon M251 logic controllers offer an innovative, high-performance solution in the field of modular machines and distributed architectures. Thanks to their compact dimensions, they can optimize the size of wall-mounted and floor-standing control system enclosures. Since Modicon M251 controllers have no embedded I/O, field devices such as variable speed drives and remote I/O are connected either to the CANopen and SAE J1939 machine buses or over Ethernet. Modicon M251 controllers have an embedded Ethernet port offering FTP (Client/ Server), Web server, and SQL (Client) services, meaning they can be easily integrated into control system architectures for remote machine monitoring and maintenance via apps for smartphones, tablets, and PCs. This wide variety of embedded functions helps minimize the cost of the machine: - Functions embedded in the controller: Modbus serial link, dedicated USB programming port, Ethernet I/O Scanner, CANopen, and SAE J1939 fieldbuses for distributed architectures, advanced position control functions (PLCopen libraries) - Functions embedded in the Modicon TM3 extensions: functional safety modules, motor-starter control module, and remote expansion system - Functions embedded in the Modicon TM4 communication modules The processing power and memory capacity of M251 controllers are ideal for targeting high-performance applications. SoMachine's programming software is powerful and intuitive, making it quick to create applications. Existing applications can easily be retrieved from Modicon M221, M238, and M258 ranges, thus helping to protect the investment already made. Main functions v Both Modicon M251 logic controllers come in an identical format (W x H x D): 54 x 90 x 95 mm (2.13 x 3.54 x 3.74 in). v Modicon M251 controllers have no embedded I/O but can be combined with Modicon TM3 expansion modules. v Each M251 controller has a Run/Stop switch. v Each M251 controller has a slot for an industrial SD (Secure Digital) memory card. v Each M251 controller has a QR code for direct access to its technical documentation. Embedded communication Modicon M251 logic controllers have up to 5 embedded communication ports: v The TM251MESE controller has the following embedded ports: - An Ethernet 1 network (1) with 2 RJ45 ports connected by an internal switch. This network is mainly used for communication between machines or with the factory network. - An Ethernet 2 (1) network with 1 RJ45 port, optimized for connecting field devices (variable speed drives, distributed I/O, etc.) by means of the I/O Scanner service (Industrial Ethernet Manager). This port can also be connected to a factory network. v The TM251MESC controller has the following embedded ports: - An Ethernet (1) network with 2 RJ45 ports connected by an internal switch. This network is mainly used for communication between machines or with the factory network. - A CANopen port (CANopen Master/SAE J1939 Request Manager) port for connecting field devices (variable speed drives, distributed I/O, etc.). v In addition, both M251 logic controllers incorporate: - a serial link port - a programming port (1) Ethernet with embedded Web server function Processing power v Execution speed: 22 ns/Boolean instruction v Program: 128 Boolean Kinstructions v DualCore processor v 64 MB RAM; 128 MB Flash memory v Program size: 10 MB for application and symbols Programming Modicon M251 logic controllers are programmed with the SoMachine software. Please consult our website www.schneider-electric.com. SoMachine software TM251MESC TM251MESE Example of a QR code: QR code for accessing the TM251MESC logic controller technical documentation Compatibility of offers Modicon M251 logic controllers > Modicon TM3 expansion modules > Modicon TM2 expansion modules > Modicon TM4 communication modules > SoMachine software 2 1 3 4 5 6 7 8 9 10 2 1 3 4 5 6 7 8 9 10

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