Schneider Electric BMXNOC0401 Modicon M340 Ethernet Network

BMXNOC0401 EtherNet/IP and Modbus TCP network module

The BMXNOC0401 is a Schneider Electric product listed in the datasheet as: network module, Modicon M340, EtherNet/IP and Modbus/TCP, 4 x RJ45. The BMXNOC0401 is a network module for the Modicon M340 and X80 platform with four RJ45 ports, supporting EtherNet/IP and Modbus TCP. It extends the controller to remote devices and SCADA systems. Seven Star LLC supplies the BMXNOC0401 in Oman and the GCC as an independent supplier based in Muscat.

Reading the reference: NOC is the Ethernet network option card, 04 the port count and 01 the variant.

Technical specifications of the BMXNOC0401

Ports and protocols of the BMXNOC0401

Ethernet: 10BASE-T/100BASE-TX.

Four ports allow daisy-chain or star topology. The datasheet lists the services and limits.

Network planning for the BMXNOC0401

Segment the network between control and enterprise, use managed switches and document the IP plan. Compare with BMXNOE0100, an older Ethernet module.

Check firmware compatibility.

Selection checklist for the BMXNOC0401

• Ports and protocols.
• Rack slot.
• IP plan.
• Security.
• Firmware.
• Switch.

Configuration of the BMXNOC0401

Configure addresses in the programming software, test services and monitor diagnostics.

Store the configuration.

Typical applications of the BMXNOC0401 in Oman and the GCC

In Oman and the GCC it links process controllers to SCADA.

Dimensions, environment and approvals of the BMXNOC0401

The BMXNOC0401 weighs 0.2 kg. Mounting, derating and enclosure choices follow the environmental data below, which should be compared with the actual panel temperature and the dust and humidity of the site in Oman and the GCC.

Ambient temperature limits in the datasheet: 0 to 60 °C. Relative humidity: 10 to 95 % without condensation. Ingress protection: IP20. Standards listed: IEC 61131-2; IEC 61010-2-201; UL 61010-2-201; CSA C22.2 No 61010-2-201; IACS E10; IEC 61000-6-5, interface type 1 and type 2. Certifications listed for this reference: CE; UL; CSA; RCM; EAC; Merchant Navy; ATEX zone 2/22; IECEx zone 2/22.

Network modules are often blamed for faults that come from the network around them, so a structured approach helps with the BMXNOC0401. Start with the link LEDs on the four ports, then confirm addresses and subnet, then check the services running on the module. Use the diagnostic pages or the controller diagnostics to read the number of connections and the error counters; a growing error counter on one port points to a cable or switch problem. When the module is replaced, load the same configuration and confirm that the IP address and the device list are identical, otherwise the SCADA may refuse the connection. In larger systems, plan the use of the ports: one for the plant network, others for remote I/O or a redundant ring, as supported by the datasheet. Review the security settings with the IT team, switch off unused services and protect access to the configuration. In hot cabinets, keep airflow around the module, because network modules dissipate more heat than passive modules in the rack. A practical test before handover is a failover and recovery test: unplug one cable at a time while watching the diagnostics, then power-cycle the rack and confirm that all connections return without manual action. Record the time it takes, because a slow recovery after a power dip can show up as a nuisance alarm on the SCADA. Where several BMXNOC modules exist in the same plant, give each a clear name in the project and in the labels on the cabinet door so that a technician can tell them apart at a glance. Save the module configuration as a file and store it with the project on at least two independent media, and keep the firmware version in the same record.

Information to send with an RFQ for the BMXNOC0401

• Full reference and quantity required
• Existing equipment, panel or rack it must fit
• Supply voltage, load or signal details of the application
• Required delivery location and timing
• Whether a spare, a replacement or a new installation

Site conditions in Oman for the BMXNOC0401

Control cabinets in Gulf plants often run hot, because many sit in outdoor kiosks or in rooms where air conditioning is not always reliable. Before you finalise the BMXNOC0401, check the permitted ambient range and any derating stated by the manufacturer against the real temperature inside your panel, and leave the recommended spacing around the device so that heat can escape. Long cable runs between the field and the marshalling cabinet are common on large sites, so confirm the signal types, wiring limits and earthing arrangement early in the design.

It also helps to standardise on a small number of part numbers across a project. Keeping a few spare BMXNOC0401 units on site in Oman shortens recovery time after a fault, and documenting configuration settings makes replacement faster for the maintenance team.

Documents and quotation

A datasheet for this product is attached on this page. It lists the electrical, mechanical and environmental data summarised above.

Send us the part number, quantity and application and we will confirm availability and a quotation. Seven Star LLC is an independent supplier in Muscat and does not represent itself as an official channel of the manufacturer.