Schneider BMXNOE0100 Ethernet Communication Module

The Schneider BMXNOE0100 is an Ethernet communication module designed for the Modicon M340 programmable logic controller (PLC) series. It provides a single RJ45 port supporting 10/100 Mbps auto-negotiation, enabling high-speed data exchange with industrial networks. The module facilitates Modbus TCP/IP messaging, web server hosting, and I/O scanning.

Protocol Support

Key protocols include Modbus TCP server and client, SNMP for network management, DHCP for dynamic IP assignment, and HTTP for embedded web pages. It also supports Schneider Electric's Unity Pro application protocol for programming and diagnostics. Up to 64 simultaneous Modbus TCP connections can be established.

Performance Characteristics

The BMXNOE0100 processes up to 1000 I/O words per second for distributed I/O scanning. Typical response time for a Modbus request is under 5 ms. The module incorporates a 10/100Base-T(X) auto-crossover port, eliminating the need for crossover cables. It also supports SNTP for time synchronization.

Integration with M340 CPU

The module mounts directly to the left side of the M340 CPU via a dedicated bus, requiring no additional power supply. It is configured using Unity Pro software, where users set IP parameters, define I/O scanners, and create web pages. The module's status LEDs indicate link activity, collisions, and diagnostic errors.

Cyber Security Features

Includes password protection for configuration access, IP filtering, and disablement of unused services. It supports HTTPS for secure web browsing and SNMPv3 for encrypted network management. The module complies with Achilles Level 1 certification for critical infrastructure.

Physical and Environmental

Dimensions are 32 x 100 x 86 mm, weight 105 grams. Operating temperature range is 0°C to 60°C, storage -40°C to 85°C. The module is rated IP20 and requires installation in a protected enclosure. Power consumption from the backplane is 150 mA at 5V DC.

Applications

Typical uses include connecting M340 PLCs to SCADA systems, exchanging data with drives and HMIs, remote diagnostics via web server, and integrating into plant-wide Ethernet networks. It is commonly applied in water treatment, packaging, and material handling.

Conclusion

The Schneider BMXNOE0100 Ethernet module adds flexible, high-performance networking to Modicon M340 systems. With Modbus TCP, web server capabilities, and security features, it meets modern industrial communication demands.