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Specification & Description
| Specification | Description |
|---|---|
| Part Number | TM251MESE |
| Manufacturer | Schneider |
| Rated Supply Voltage | 24 V DC |
| I/O Expansion Module Capacity | 7 (local), 14 (remote) |
| Power Consumption | 32.6 to 40.4 W (with maximum number of I/O expansion modules) |
| Memory Capacity | 8 MB for program, 64 MB for system memory RAM |
| Data Storage | 128 MB built-in flash memory for backup of user programs, up to 32 GB SD card (optional) |
| Battery Type | BR2032 lithium non-rechargeable, 4-year life |
| Backup Time | 2 years at 25°C |
| Execution Time for 1 K Instruction | 0.3 ms for event and periodic task, 0.7 ms for other instructions |
| Real-Time Clock | Included, with a clock drift of ≤ 60 s/month at 25°C |
| Communication Ports | USB port with mini B USB 2.0 connector, Non-isolated serial link with RJ45 connector, Dual-port Ethernet with 2 RJ45 connectors |
| Transmission Rate | 1.2 to 115.2 kbit/s for RS485, 1.2 to 115.2 kbit/s for RS232, 480 Mbit/s for USB |
| Communication Protocols | Modbus master/slave - RTU/ASCII, SoMachine-Network, Ethernet/IP, SNMP, DHCP, SQL, OPC UA |
| Maximum Number of Connections | 16 Ethernet/IP devices, 8 Modbus servers |
| Local Signalling | LEDs for power, run, error, I/O error, SD card access, battery, serial link, Ethernet activity |
| Electrical Connection | Removable screw terminal block for power supply |
| Mounting Support | Plate or panel with fixing kit, Top hat type TH35-7.5 rail, Top hat type TH35-15 rail |
| Dimensions (H x D x W) | 90 mm x 95 mm x 54 mm |
| Product Weight | 0.22 kg |
| Environmental Standards | ANSI/ISA 12-12-01, CSA C22.2 No 142, CSA C22.2 No 213, EN/IEC 61131-2:2007, Marine specification (LR, ABS, DNV, GL), UL 1604, UL 508 |
| Product Certifications | cULus, CSA |
The Schneider TM251MESE Logic Controller is a versatile and robust component designed for the efficient management and automation of machinery and processes. Engineered with precision, this controller is part of the Modicon M251 series and is equipped with dual Ethernet ports, ensuring seamless network connectivity and integration into existing systems.
With a 24 V DC rated supply voltage, the TM251MESE is built to handle a wide range of industrial applications. It supports up to 14 remote I/O expansion modules, making it highly adaptable to complex configurations. The controller's inrush current is capped at 50 A, and it boasts a power consumption range of 32.6 to 40.4 W when operating with the maximum number of I/O expansion modules.
Memory capacity is generous, with 64 MB of system memory RAM and 8 MB dedicated to program storage. Additionally, it features 128 MB of built-in flash memory for user program backup, ensuring that critical data is preserved. For extended data storage, an SD card slot is available, supporting cards up to 16 GB (optional).
The TM251MESE is equipped with a non-rechargeable BR2032 lithium battery, providing a backup time of 2 years at 25 °C, ensuring that real-time clock and essential functions remain operational in the event of a power interruption. The execution time for 1 K instruction is impressively swift, with 0.3 ms for event and periodic tasks and 0.7 ms for other instructions.
This logic controller is designed with a USB port featuring a mini B USB 2.0 connector, a non-isolated serial link with RS232/RS485 interface, and dual-port Ethernet connectivity, offering a range of communication options for various industrial protocols.
The Schneider TM251MESE is a Green Premium product, reflecting its compliance with environmental standards and regulations. It is mercury-free, PVC-free, and adheres to the REACh Regulation, ensuring that it meets the highest standards for environmental sustainability and user safety.
Ideal for a broad spectrum of industrial automation tasks, the Schneider TM251MESE Logic Controller is a reliable and efficient solution for modern industrial environments, offering flexibility, connectivity, and performance.
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Frequently Asked Questions
What type of power supply is required for the Logic Controller?
The Logic Controller requires a 24 V DC power supply with voltage limits ranging from 20.4 to 28.8 V.
Can the memory capacity of the Logic Controller be expanded?
The controller comes with 64 MB of system memory RAM and 128 MB of built-in flash memory for backup of user programs. It also supports an SD card of up to 16 GB for additional data storage, which is optional.
What are the communication capabilities of the Logic Controller?
The Logic Controller features a USB port with a mini B USB 2.0 connector, a non-isolated serial link with an RS232/RS485 interface, and dual-port Ethernet with RJ45 connectors. It supports various communication protocols including Modbus TCP, Ethernet/IP, and FTP, among others.
What is the maximum number of I/O expansion modules that can be connected?
The controller can support up to 7 local I/O expansion modules or up to 14 remote I/O expansion modules.
How does the Logic Controller handle program execution and tasks?
The controller is designed to handle 4 cyclic master tasks, 8 event tasks, and 3 cyclic master tasks plus 1 freewheeling task. It also supports 8 external event tasks, with execution times ranging from 0.3 ms for event and periodic tasks to 0.7 ms for other instructions.
What certifications does the Logic Controller have?
The Logic Controller is certified with cULus, CE, UKCA, DNV-GL, ABS, and LR, ensuring compliance with various international standards.
What environmental conditions can the Logic Controller operate under?
The controller is designed to operate in ambient temperatures ranging from -10°C to 55°C for horizontal installation and -10°C to 35°C for vertical installation. It also has an IP20 degree of protection with the protective cover in place.
What is the procedure for mounting the Logic Controller?
The controller can be mounted on a top hat type TH35-15 rail conforming to IEC 60715, a top hat type TH35-7.5 rail, or directly onto a plate or panel with a fixing kit.
Does the Logic Controller have any sustainability features?
Yes, the controller is a Green Premium product, which means it adheres to rigorous environmental standards and is free from substances like PVC and mercury.
What is the significance of the LED indicators on the Logic Controller?
The LED indicators on the controller provide visual feedback on the status of power (PWR), operation (RUN), module errors (ERR), I/O errors, SD card access, battery status (BAT), serial link (SL), bus fault on TM4 expansion modules, and Ethernet activity.
