Schneider Electric BMXNOC0401 Modicon M340 Ethernet Network Module — 4× RJ45 10/100 Mbps, EtherNet/IP & Modbus/TCP, Embedded 4‑Port Switch, IP20

Product overview The Schneider Electric BMXNOC0401 is an Ethernet TCP/IP network communication module for the Modicon M340 automation platform. It provides four RJ45 10/100 Mbps ports with an embedded 4‑port switch and supports EtherNet/IP and Modbus/TCP scanners and messaging. Designed for industrial applications, the module offers robust network services, bandwidth management and diagnostic signalling for reliable field communications in control systems.

Key specifications

• Manufacturer: Schneider Electric
• Model: BMXNOC0401 (Modicon M340 Ethernet network module)
• Function: Ethernet TCP/IP network module for Modicon M340 PAC/PLC
• Network ports: 4 × RJ45 (10BASE‑T / 100BASE‑TX), 4‑pair Ethernet, embedded 4‑port switch
• Protocols & services: EtherNet/IP I/O scanner & messaging, Modbus TCP I/O scanner & messaging, SNMP, FDR server, rack viewer, data editor (PC terminal), bandwidth management, RSTP support, port mirroring, transparent ready class B30
• Integrated features: Embedded 4‑port switch, port mirroring, RSTP, bandwidth management, web server activation for diagnostics and configuration
• Supply: Internal power via M340 rack (module current consumption 555 mA at 3.3 V DC)
• Local signalling LEDs: RUN (green), ERR (red), ETH STS (amber), MS (green/red), NS (green/red)
• Environmental / mechanical: IP20; operating ambient 0…60 °C; relative humidity 10…95 % (no condensation); net weight 0.2 kg; module format: standard M340 format; packaging dimensions as per Schneider Electric data
• Certifications & standards: CE, UL, CSA, RCM, EAC, Merchant Navy, ATEX zone 2/22, IECEx zone 2/22; meets IEC 61131‑2, IEC 61010‑2‑201, IEC 61000‑6‑5, IEC 61850‑3 (location G) and related standards
• Hazardous location: suitable for Hazardous location class I division 2 (see certification details)
• Firmware: latest firmware available from Schneider Electric (refer to product support for version SV02.11 or later)
• Warranty: 18 months (contractual)

Features & benefits

• Multi‑protocol support (EtherNet/IP and Modbus/TCP) enables integration with Schneider and third‑party devices.
• Embedded 4‑port switch reduces the need for external switches and simplifies network topology in small to medium installations.
• Advanced network services (RSTP, port mirroring, SNMP, bandwidth management) improve resilience, diagnostics and traffic control.
• Compact M340 module format and internal rack power simplify installation and reduce panel footprint.
• Diagnostic LEDs and web server support speed commissioning and troubleshooting.

Applications

• Industrial process control, manufacturing and machine automation.
• Water and wastewater systems, renewable energy, cement, mining, data centers, infrastructure and other industries using Modicon M340 controllers.
• Distributed I/O and networked PLC architectures requiring EtherNet/IP or Modbus/TCP communications.

Installation and service notes

• Requires Modicon M340 rack with compatible processor (see M340 product compatibility). Power is supplied via the rack; ensure rack power ratings and wiring follow Schneider Electric instructions.
• Check and apply the latest firmware from Schneider Electric support for security and feature updates.
• Install inside an enclosure consistent with IP20 rating; observe environmental and hazardous location installation instructions when used in Zone 2/22 or Class I Division 2 areas.
• Refer to the product datasheet and user guide for wiring diagrams, port configuration, network topology examples and diagnostic procedures.

Documentation

• Product datasheet, user guide, instruction sheet, catalog and CAD files are available from Schneider Electric support portal.