Schneider Modicon M258 Logic Controller

Product positioning and application

Product Series: Modicon M258 Logic Controller

Platform: MechaniStruxure Flexible Machine Control

Target users: Equipment manufacturers (OEMs)

Typical applications: packaging, conveying, lifting, warehousing, textile, woodworking

Core values: high performance, compact structure, easy wiring, easy scalability

Core hardware performance

Key specifications of parameter items

Dual core processor architecture (Core1: program tasks; Core2: Communication Task

User memory RAM 64MB, Flash 128MB

Program capacity 128K instructions

Maximum I/O 2400 points

High speed counter 8 channels x 100kHz

Reflex outputs 4 channels

Supply voltage 24VDC (range: 19.2~28.8V)

Environmental temperature level: -10~+60 ℃; Vertical: -10~+50 ℃

Model and I/O configuration (6 main models)

Model Total I/O Input/Output Analog Communication Size

TM258LD42DT 42 26DI 16 transistor – Ethernet, serial port USB 177mm

TM258LF42DT 42 26DI 16 transistor – Ethernet CANopen、 Serial port USB 177mm

TM258LD42DT4L 42+4AI 26DI 16 transistor 4AI 12 bit Ethernet, serial port USB、 Dual PCI 237.5mm

TM258LF42DT4L 42+4AI 26DI 16 transistor 4AI 12 bit Ethernet CANopen、 Serial port USB、 Dual PCI 237.5mm

TM258LF42DR 42 26DI 4 transistors+12 relays – Ethernet CANopen、 Serial port USB、 Dual PCI 237.5mm

TM258LF66DT4L 66+4AI 38DI 28 transistor 4AI 12 bit Ethernet CANopen、 Serial port USB、 Dual PCI 237.5mm

Communication interface (standard+extended)

Standard interface

Ethernet RJ45:10/100M, Modbus TCP, EtherNet/IP, Web, FTP

USB-A: USB flash drive program/firmware update

Mini USB: SoMachine Programming

RS232/RS485（RJ45）：Modbus ASCII/RTU

CANopen (LF series): Master station, 125k~1Mbps, up to 63 slave stations

Expansion module (dual PCI slots)

TM5PCRS2: RS232 serial port

TM5PCRS4: RS485 serial port

TM5PCDPS: Profibus DP Slave Station

Core functions

High speed counting function (HSC)

8 channels x 100kHz, supporting single/two-phase counting

Analog processing

The 4L model comes standard with 4 channels of 12 bit AI (± 10V/4~20mA)

Up to 200 expandable analog/temperature modules

Motion Control

CANopen control servo/stepper, up to 16 axes

Support PLCopen function block

communication function

Support remote monitoring, web server, FTP file management

Local/Remote I/O

Maximum distance for remote I/O: 100m/station, up to 25 stations, total length 2500m

Installation and wiring

Installation method: DIN rail buckle installation

Terminal: Removable spring terminal, no screws, no regular tightening required

Expansion bus: 8-pin expansion bus, fast splicing

Maintenance: Wiring terminals with testing points for easy inspection

Software and Programming

Software Platform: SoMachine

Supported languages:

IL、LD、FBD、SFC、ST（IEC 61131-3）

CFC Continuous Function Diagram

Support: PLCopen motion control library

Certification and Standards

Certification: CE, CSA, C-Tick, CULus, GOST-R

Standards: UL 508, IEC 61131-2, EN 61000-4-x

Key questions and answers

Question 1: What is the division of labor for the M258 dual core processor? What are the benefits for device operation?

answer:

Core1: Specialized in executing user programs to ensure real-time performance;

Core2: specializes in handling all communication tasks;

Benefits: Communication does not occupy program execution resources, ensuring stable and delay free high-speed counting, motion control, and logic control, and faster and more reliable device response.

Question 2: What is the core difference between the LF series and LD series of M258? What scenarios are suitable for each?

answer:

LF series: Comes with CANopen master station, supports multi axis servo/stepper control, suitable for multi axis positioning, handling, flying cutting, labeling and other motion control equipment.

LD series: No CANopen, focusing on logic control, analog quantity PID、 Temperature control, suitable for low-cost automation equipment such as conveying, temperature control, and small packaging machines.

Question 3: How does M258 achieve remote I/O? How far can it be extended at the farthest? How many points can I bring at most?

answer:

Realize remote I/O through TM5 bus and transceiver module;

The maximum distance for a single segment is 100m, with a maximum of 25 remote stations, and the total length can reach 2500m;

The system supports up to 2400 I/O points and can be installed remotely in a distributed manner, significantly reducing on-site wiring costs.