TM258LF42DR
Schneider Electric
Overview
The TM258LF42DR is a distributed I/O module in the Modicon TM logic controller / I/O range from Schneider Electric. Compact Logic Controller, 42 I/O, mixed relay+transistor outputs, 24 VDC.
Application & Technical Notes
As a modicon tm logic controller / i/o device, the TM258LF42DR is intended for deployment in panel-based control cabinets and machine enclosures where Modicon TM logic controller / I/O equipment is installed. It localises I/O close to the field devices, reducing wiring length and bringing intelligence to the periphery of the installation.
Key published characteristics include a 24 V DC (19.2...28.8 V) rating, an operating temperature range of 0...+55 °C (0...+60 °C with derating). These values should be confirmed against the current manufacturer datasheet before final selection, as options and suffixes vary by configuration.
Maintenance & Diagnostics
Respect the published operating temperature window (0...+55 °C (0...+60 °C with derating)); do not exceed it during commissioning or in enclosed panels without airflow. For storage and transit, keep the unit within -25...+70 °C. Avoid condensation — the rated humidity is 10...95% (non-condensing); store and operate the module in a dry, pollution-degree-appropriate enclosure. Verify field wiring, shielding and grounding at installation; check terminal torque and confirm signal types match the configured range. Periodically inspect for loose terminations, induced noise and channel-level diagnostics reported by the controller. Always de-energise the circuit and follow lock-out/tag-out before handling; refer to the official instruction bulletin for service procedures.
Sourcing & Procurement
When sourcing the TM258LF42DR, distinguish three supply tiers: (1) genuine Schneider Electric stock from an authorised distributor; (2) compatible equivalents or surplus/NOS (new-old-stock) from third parties; (3) alternative parts offering equivalent function. Genuine supply carries the full warranty and traceability; compatible or alternative items may be cheaper but should be validated for form, fit, firmware and certification before use in a live system. PLCXpert publishes this page as an independent reference and does not sell the part — verify every claim with the manufacturer or your distributor.
Confirm the module matches your Modicon TM logic controller / I/O rack, the required channel count, signal type and voltage, and the firmware/configuration of the controller. Lead times and pricing vary by region and lifecycle status; obtain a current quote from an authorised channel rather than relying on stale listings.
Frequently Asked Questions
What is the TM258LF42DR?
The TM258LF42DR is a modicon tm logic controller / i/o device in the Modicon TM logic controller / I/O range from Schneider Electric. It belongs to the Modicon TM logic controller / I/O automation family.
What are the key technical ratings of the TM258LF42DR?
Its published highlights include 24 V DC (19.2...28.8 V), operating temperature 0...+55 °C (0...+60 °C with derating). Full electrical, mechanical and environmental limits are listed in the manufacturer datasheet and should be confirmed for your exact suffix.
How is the TM258LF42DR mounted or installed?
Installation follows the standard Modicon TM logic controller / I/O mounting practice for this device class; refer to the installation manual for exact dimensions and torque.
Is the TM258LF42DR compatible with my controller?
It is part of the Modicon TM logic controller / I/O family. Confirm the specific rack, firmware revision, slot rules and configuration with the controller documentation before purchase, as compatibility depends on the exact system build.
What should I check before buying the TM258LF42DR?
Verify the genuine part number and suffix, confirm it matches your platform and ratings, check the current lifecycle/availability status, and buy from an authorised distributor. PLCXpert provides this reference only and does not sell the component.
Specifications
Compact Logic Controller, 42 I/O, mixed relay+transistor outputs, 24 VDC
Hardware
| Processor | Dual-core ARM Cortex-A8 (Core1: program tasks; Core2: communication tasks) |
|---|---|
| Clock speed | Not available |
| Program memory | 128 K instructions |
| Data memory | 64 MB RAM (internal); 128 MB Flash |
| Programming software | SoMachine / EcoStruxure Machine Expert |
| Scan speed | 0.022 µs per Boolean instruction (45,000+ Boolean instructions per ms) |
I/O Capacity
| Digital inputs | 26 (18 regular 24 Vdc + 8 fast HSC 100 kHz) |
|---|---|
| Digital outputs | 16 (4 fast transistor 0.1 A + 12 relay 2 A) |
| Analog inputs | None |
| Analog outputs | None |
| High-speed counters | 8 × 100 kHz |
| Pulse outputs | 4 fast reflex outputs (transistor) |
| Expansion modules (max) | Up to 7 TM5/TM2 expansion modules; max 2400 I/O |
Communication
| Built-in ports | 1× Ethernet RJ45, 1× CANopen (SUB-D9), 1× serial link (RS-485), 1× USB-B mini (programming) |
|---|---|
| Protocols | Modbus TCP (Ethernet), CANopen master, Modbus RTU/ASCII (serial), proprietary programming protocol (USB) |
| Communication expansion | 2 free PCI slots for optional communication/function modules (in addition to up to 7 TM5/TM2 I/O expansion modules) |
Electrical
| Supply voltage | 24 V DC (19.2...28.8 V) |
|---|---|
| Power consumption | 17.22 W |
| Bus current | Not applicable (self-powered 24V DC compact controller; no backplane bus) |
Environmental
| Operating temperature | 0...+55 °C (0...+60 °C with derating) |
|---|---|
| Storage temperature | -25...+70 °C |
| Relative humidity | 10...95% (non-condensing) |
| Protection rating | IP20 |
Physical
| Dimensions (H×W×D) | 99 × 265 × 75 mm |
|---|---|
| Weight | Not available |
Status
| Lifecycle | Active (Last verified: 2026-09) |
|---|
Lifecycle
Reproduced from the manufacturer's published data. Values marked "Not available" are absent from the source document.