Product Overview of the Schneider Electric TM258LD42DT
The Schneider Electric TM258LD42DT is a compact logic controller from the Modicon M258 series. It is engineered for precise machine control in demanding industrial environments. With 42 built-in I/O points, this controller combines digital inputs, transistor outputs, and high-speed counting in a single IP20 enclosure. The unit operates on a 24 VDC supply, drawing 13.03 W. Its dual-core ARM Cortex-A8 processor separates program tasks from communication tasks, ensuring deterministic scan performance. The TM258LD42DT is an active lifecycle product, verified as of 2026-09.
Key Technical Specifications of the TM258LD42DT
- Digital inputs: 26 total (18 regular 24 VDC, 8 fast HSC at 100 kHz)
- Digital outputs: 16 transistor, source/PNP, 0.5 A per point, 4 fast
- High-speed counters: 8 × 100 kHz
- Program memory: 128 K instructions
- Data memory: 64 MB RAM, 128 MB Flash
- Supply voltage: 24 VDC (19.2...28.8 V)
- Power consumption: 13.03 W
- Protection rating: IP20
- Dimensions (H×W×D): 99 × 265 × 75 mm
- Weight: 0.5 kg
Notably, the 0.022 µs per Boolean instruction scan speed enables over 45,000 Boolean instructions per millisecond. This engineering-grade precision supports high-speed packaging and sorting applications.
Comparison with Similar Controller Categories
- TM258LD42DT: 42 I/O, 24 VDC, transistor outputs, embedded Ethernet, CANopen, RS-485
- Typical micro PLC: 14–24 I/O, relay outputs, optional communication modules
- Typical rack-based PLC: Higher I/O capacity, requires backplane and separate power supply
Unlike many compact controllers, the TM258LD42DT includes built-in Ethernet RJ45, CANopen SUB-D9, RS-485 serial, and USB-B mini programming ports. It also supports up to 7 TM5/TM2 expansion modules for a maximum of 2400 I/O.
Installation and Integration Notes
The controller mounts in a control cabinet with IP20 protection. Ensure the 24 VDC supply stays within 19.2...28.8 V. Operating temperature ranges from 0 to +55 °C, or up to +60 °C with derating. For network integration, the built-in ports support Modbus TCP, CANopen master, and Modbus RTU/ASCII. When wiring into fieldbus networks, an external gateway or connection module may be required. Confirm cables and gateways with your supplier. Two free PCI slots accept optional communication or function modules.
Support and Availability
The Schneider Electric TM258LD42DT is in stock and ready to ship from AutoDCSTech. For engineering-grade accuracy in every part, contact AutoDCSTech with your exact requirements for precise matching.
Availability & Condition at AutoDCSTech
| Part Number | TM258LD42DT |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | France |
