Schneider Electric TM251MESE Modicon M251 Programmable Logic Controller
Manufacturer: Schneider
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Part Number: TM251MESE
Condition：New with Original Package
Product Type: Programmable Logic Controllers
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Schneider Electric TM251MESE Modicon M251 Logic Controller
The Schneider Electric TM251MESE is a high-performance programmable logic controller from the Modicon M251 series, engineered for scalable industrial machine automation and distributed control architectures. It operates on a 24 V DC supply and is equipped with 8 MB of program memory, 64 MB of system RAM, and 128 MB of built-in flash memory for program backup.
Communication and Network Connectivity
The controller features dual Ethernet ports supporting Modbus TCP and EtherNet/IP protocols to facilitate data exchange with supervisory systems, HMIs, and plant networks. Additional serial communication interfaces including RS-232 and RS-485 via RJ45 connectors, alongside an integrated mini-B USB port and an embedded web server, provide flexible connectivity options.
System Expansion and Performance
Designed for modular configuration, the unit supports up to 7 local I/O expansion modules and 14 remote I/O modules for a total of 21 expansion modules. It executes instructions at 0.022 microseconds, backed by an integrated real-time clock and a replaceable BR2032 lithium backup battery that preserves data for up to two years at 25 deg C.
| Parameter | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Model Number | TM251MESE |
| Product Series | Modicon M251 |
| Product Type | Programmable Logic Controller (PLC) |
| Rated Supply Voltage | 24 V DC |
| Supply Voltage Limits | 20.4–28.8 V DC |
| Power Consumption | 32.6–40.4 W (with maximum I/O expansion) |
| Program Memory | 8 MB |
| System Memory | 64 MB RAM |
| Backup Memory | 128 MB Built-in Flash |
| Optional Storage | SD Card, up to 16 GB |
| Maximum Expansion Modules | 21 Modules (7 local, 14 remote) |
| Ethernet Ports | 2 × RJ45 (10/100BASE-TX) |
| Serial Communication | RS-232 / RS-485 (RJ45) |
| Communication Protocols | Modbus TCP, Modbus RTU, Modbus ASCII, EtherNet/IP |
| Programming Software | EcoStruxure Machine Expert |
| Protection Rating | IP20 |
| Mounting Type | DIN Rail |
| Weight | 222 g |
Frequently Asked Questions
Q: What communication protocols are supported by the dual Ethernet ports on the TM251MESE? A: The dual Ethernet ports support Modbus TCP and EtherNet/IP communication protocols for industrial networking.
Q: How many expansion modules can be connected to this logic controller? A: It supports up to 7 local I/O modules and 14 remote I/O modules, allowing a total of 21 expansion modules per controller.
Q: What programming software is required to configure the Modicon M251 controller? A: The controller is programmed using Schneider Electric EcoStruxure Machine Expert software.