Schneider TM258LD42DT

 The TM258LD42DT is a programmable logic controller (PLC) belonging to Schneider Electric’s Modicon M258 series. Powered by 24V DC, it integrates 42 mixed digital/analog I/O points and features a built-in Ethernet communication interface, making it ideal for standalone control of small-scale automation systems.

Key Technical Specifications

• Power Supply: 24V DC
• I/O Points: 42 (including digital inputs/outputs and analog inputs/outputs)
• Communication: Built-in 10/100 Mbps Ethernet, supporting industrial protocols such as Modbus TCP and Ethernet/IP
• CPU Performance: Complies with the Modicon M258 series’ operating speed and instruction set, meeting programming requirements for standard ladder logic, structured text, etc.
• Environment: Operating temperature range of -5°C to +55°C; protection class conforms to IEC 60529 IP20
• Certifications: Complies with EU and Chinese environmental regulations including RoHS and REACH; mercury-free, toxic heavy metal-free, and PVC-free

Product Features

• Compact & Highly Integrated: 42 I/O points and Ethernet integrated into a single unit, saving cabinet space
• Flexible Expansion: Supports addition of I/O, communication, or functional modules via expansion units to meet future upgrade needs
• Easy Programming: Compatible with Schneider EcoStruxure control software, supporting multiple programming languages such as ladder logic, function blocks, and structured text
• Reliability: Meets industrial-grade electromagnetic compatibility (EMC) standards, with overvoltage and overcurrent protection for harsh industrial environments
• Environmental Compliance: Certified by RoHS, REACH, etc., adhering to green manufacturing requirements

Structure & Components

• CPU Unit: Core processing unit integrating power supply, CPU, basic I/O, and Ethernet port
• I/O Modules: Optional plug-in digital/analog input/output expansion modules
• Communication Modules: Optional modules supporting fieldbuses such as Profibus, CANopen, and Modbus
• Power Supply Module (if external power required): Provides stabilized 24V DC power
• Mounting Brackets: Standard DIN rail or wall-mounted brackets for easy cabinet integration

Typical Application Areas

• Standalone control of small mechanical equipment (e.g., packaging machines, conveyor systems)
• Building automation and energy management (HVAC, lighting control)
• Process control for water treatment and environmental protection facilities
• Point monitoring and simple logic control of production lines
• Centralized collection and control of field instruments and sensors

Installation & Maintenance Guidelines

Installation

• Mount on standard DIN rails, ensuring the chassis is horizontally placed; use anti-loosening screws for terminal connections.

Power Connection

• Ensure stable 24V DC power supply and use power cables complying with IEC 60947 standards.

Wiring

• Use shielded cables for digital I/O and signal cables meeting impedance requirements for analog I/O to avoid interference.

Communication Configuration

• Set IP address and subnet mask in EcoStruxure software to match the upper-level system network.

Commissioning

• After initial power-on, check power, communication, and I/O status via LED indicators; use software for online monitoring and diagnosis.

Maintenance

• Regularly inspect terminal tightness, heatsink cleanliness, and input voltage stability; perform firmware upgrades using official secure update packages.

If you would like to learn more about our products and services, please feel free to contact us at any time!

• Sales Manager : Jinny
• Email : sales5@xrjdcs.com
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