Schneider Electric TM4ES4 Ethernet Communication Module for Modicon M241/M251

The TM4ES4 from Schneider Electric is an unmanaged Ethernet switch module for the Modicon M241 and M251 logic controllers. It adds four RJ45 copper ports with 10/100 Mbit/s transmission to your control architecture. Engineers use this module to connect controllers, HMI panels and programming tools over one compact DIN-rail device. The module draws 360 mA at 5 V DC from the communication bus. It supports Modbus TCP, Ethernet/IP, FTP, SNMP and a built-in web server. The TM4ES4 measures only 25 mm wide, so it saves panel space in dense installations. This module suits machine builders who need fast, reliable Ethernet connectivity without managed switch complexity.

Summary

• The TM4ES4 is a 4-port unmanaged Ethernet switch module from Schneider Electric.
• It fits Modicon M241 and M251 logic controllers through the backplane communication bus.
• Four RJ45 ports run at 10/100 Mbit/s over copper cable for fast network access.
• The module handles Modbus TCP server and client roles plus Ethernet/IP slave operation.
• It supports up to 8 Modbus server connections and 16 Ethernet/IP device connections.
• A web server, FTP, SNMP and firmware update client simplify commissioning and maintenance.

Key Technical Specifications

• Brand: Schneider Electric
• Model / Part Number: TM4ES4
• Category: Communication module / unmanaged Ethernet switch
• Product function: Unmanaged Ethernet switch with 4 RJ45 connectors
• Compatible controllers: Modicon M241 and Modicon M251 logic controllers
• Power consumption: 360 mA at 5 V DC on the communication bus
• Transmission speed: 10/100 Mbit/s, 10BASE-T/100BASE-TX
• Ethernet ports: 4 copper cable ports with RJ45 connectors
• Communication services: Web server, Modbus TCP, Ethernet/IP slave, FTP, SNMP, DHCP client
• Maximum connections: 8 Modbus server connections and 16 Ethernet/IP device connections
• Local signalling: One green/yellow LED per channel for link, one green LED per channel for activity, one green PWR LED
• Electrical connection: RJ45 connectors for the network plus a screw terminal for earth (ground)
• Mounting: TH35-15 and TH35-7.5 top-hat rail per IEC 60715, or plate/panel with fixing kit
• Dimensions: 25 mm width, 90 mm height, 90 mm depth
• Weight: 0.125 kg

Environmental and EMC Performance

• Operating temperature: -10 to 55 °C horizontal mounting, -10 to 50 °C vertical mounting
• Storage temperature: -25 to 70 °C
• Relative humidity: 10 to 95 % without condensation in operation and in storage
• Protection degree: IP20 with the protective cover in place
• Pollution degree: 2
• Operating altitude: 0 to 2000 m; storage altitude 0 to 3000 m
• Standards: EN/IEC 61131-2 and UL 508; certifications C-Tick and cULus
• Electrostatic discharge immunity: 8 kV in air and 4 kV with contact per EN/IEC 61000-4-2
• Radiated field immunity: 10 V/m from 80 MHz to 1 GHz per EN/IEC 61000-4-3
• Fast transient immunity: 1 kV on the Ethernet line per EN/IEC 61000-4-4
• Conducted disturbance immunity: 10 V from 0.15 to 80 MHz per EN/IEC 61000-4-6
• Shock resistance: 1 kV common mode and 0.5 kV differential mode on DC power lines per EN/IEC 61000-4-5
• Vibration resistance: 1 mm at 5 to 13.2 Hz and 3 gn at 8.7 to 150 Hz on symmetric rail
• Mechanical shock resistance: 15 gn for 11 ms

Installation Guide

• Mount the module on a TH35-15 or TH35-7.5 top-hat rail that meets IEC 60715.
• Use the fixing kit when you install the module on a plate or panel.
• Keep the protective cover in place to maintain the IP20 rating.
• Connect the earth (ground) lead to the screw terminal on the module.
• Plug the RJ45 network cables into the four Ethernet ports.
• Respect the operating temperature limits for horizontal and vertical mounting.
• Allow free airflow around the module inside the enclosure.

Packing List

• 1 x Schneider Electric TM4ES4 communication module
• 1 x Protective cover for the IP20 rating
• 1 x Fixing kit for plate or panel mounting
• 1 x Product documentation set

Shipping

• We ship orders by FedEx, UPS and DHL.
• Each module travels in protective packaging that suits these carriers.
• Tracking details follow dispatch for every shipment.

FAQ

• Which controllers does the TM4ES4 work with? The module works with Modicon M241 and M251 logic controllers.
• How many Ethernet ports does the module provide? It provides four RJ45 copper ports at 10/100 Mbit/s.
• Does the module manage network traffic? No, it is an unmanaged switch, so it forwards traffic without configuration.
• Which protocols does the module support? It supports Modbus TCP, Ethernet/IP slave, FTP, SNMP and DHCP client.
• What is the power draw from the bus? The module draws 360 mA at 5 V DC from the communication bus.
• What is the operating temperature range? The range is -10 to 55 °C horizontal and -10 to 50 °C vertical.
• How wide is the module on the rail? It measures 25 mm wide, 90 mm high and 90 mm deep.

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