Introduction
The Schneider TM251MESC Logic Controller Module belongs to the Modicon M251 series and is designed for advanced machine automation systems requiring high connectivity, modular expansion, and efficient control performance. It provides a compact yet powerful platform for OEM manufacturers and system integrators building modern industrial equipment.
With integrated Ethernet communication, CANopen master functionality, expandable I/O architecture, and EcoStruxure Machine Expert compatibility, the TM251MESC enables engineers to develop flexible automation solutions with simplified commissioning and improved system integration.
Its combination of networking capability, processing efficiency, and modular design makes it an ideal choice for manufacturers seeking dependable and future-ready machine control technology.
Technical Specifications
| Parameter | Details |
|---|---|
| Model Number | TM251MESC |
| Product Series | Modicon M251 |
| Module Type | Logic Controller Module |
| Rated Supply Voltage | 24 V DC |
| Supply Voltage Range | 20.4...28.8 V DC |
| Ethernet Interface | Dual Ethernet ports with switch function |
| CANopen Interface | CANopen Master |
| Serial Communication | RS232/RS485 serial line |
| Programming Interface | USB mini-B port |
| Programming Software | EcoStruxure Machine Expert |
| Program Memory | 8 MB |
| System Memory RAM | 64 MB |
| User Data Storage | Built-in flash memory / SD card support |
| Local Expansion Capability | Up to 7 TM3 modules |
| Remote Expansion Capability | Up to 14 TM3 modules |
| Expansion Interface | TM3 / TM4 bus |
| Mounting Type | DIN Rail Mounting |
| Protection Rating | IP20 |
| Operating Temperature | -10°C to +55°C |
| Dimensions (W × H × D) | 54 × 118 × 97 mm |
| Weight | Approx. 0.24 kg |
Recommended Companion Models
| Model | Product Name |
|---|---|
| TM251MESE | Modicon M251 Logic Controller with Dual Ethernet |
| TM241CEC40T | Modicon M241 40 I/O PNP Transistor Ethernet CANopen Controller |
| TM241CEC24U | Modicon M241 24 I/O NPN Transistor Ethernet CANopen Controller |
| TM262L20MESE8T | Modicon M262 Motion Logic Controller |
Frequently Selected Alternatives
| Model | Product Name |
|---|---|
| TM251MDESE | Modicon M251 Distributed PAC Module |
| TM241CE40U | Modicon M241 40 I/O NPN Transistor Ethernet Logic Controller |
| BMXP342020 | Modicon M340 Processor Module |
| BMEP582040 | Modicon M580 Processor Module |


