Key Module Features

Product Features

This list shows the key features of the BMENOC0301/11 module:

Security Access: This service denies some access to the BMENOC0301/11 Ethernet communications module by unauthorized network devices.
Address Server: The module provides IP addressing parameters to other Ethernet devices.
Network Time Client: The BMENOC0301/11 module uses SNTP to synchronize its clock with the clock of a time server.
Service Port: Configure port ETH 1 (SERVICE) for communications or port mirroring.

NOTE: Refer to the directions for enabling the Ethernet services.

Feature Descriptions

The BMENOC0301/11 Ethernet communications module can be configured to provide the following Ethernet services.

Modbus scanner	Use this service to exchange I/O data between the BMENOC0301/11 and Modbus TCP devices. The service supports Modbus function codes 3 (read), 16 (write), and 23 (read-write).
EtherNet/IP scanner	The BMENOC0301/11 module acts as a scanner and exchanges I/O data (embedded in assembly objects) with EtherNet/IP devices. This service allows the BMENOC0301/11 module to communicate with distributed EtherNet/IP or Modbus devices to repetitively exchange I/O data across the network.
I/O server	The BMENOC0301/11 module acts as a server that exchanges data with EtherNet/IP scanners.
Modbus server	Use this service to access the CPU Modbus server or the local Modbus server (for diagnostics data). Sample clients include these: web pages SCADA Modbus Modbus HMI Control Expert
EtherNet/IP adapter	Configure the BMENOC0301/11 as an EtherNet/IP adapter to access the local slaves for PAC I/O data and local diagnostics data (through CIP diagnostic objects). Sample clients include these: web pages SCADA over EtherNet/IP HMI over EtherNet/IP Control Expert DTM
EtherNet/IP Modbus translator	Use this service to access Modbus data with an EtherNet/IP client using standard CIP messaging.

Redundancy:

The RSTP service creates a loop-free logical network path for Ethernet devices that are part of a topology that includes redundant physical paths. When the network experiences an interruption in service, the RSTP-enabled module automatically restores network communication by activating redundant links.

You can configure the service with the Control Expert DTM to effect fast and robust protection against a single point of detected failure in network. Refer to the instructions for RSTP configuration.

DSCP Tagging:

This service adds Differentiated Services Code Point (DSCP) tags to the IP header of Ethernet packets so that network infrastructure devices can prioritize the transmission and forwarding of Ethernet frames for specific services.

Diagnostics:

PAC Application	Some module diagnostics (I/O connection health, redundancy status, etc.) are available through the PAC application and are updated every CPU cycle.
Local Modbus Server	Some module diagnostics (I/O connection, extended health, redundancy status, FDR server, etc.) are available to Modbus clients that read the local Modbus server area with Modbus function code 3 when the unit ID is set to 100 or through Modbus function code 3, 8/21, 8/22, or 43/14.
CIP Objects	Some module diagnostics (Ethernet interface, redundancy, EtherNet/IO scanner, etc.) are available through CIP objects that EtherNet/IP devices such as SCADA or HMI can read.
SNMP	Some module diagnostics (IP parameters, redundancy, Ethernet port statistics, etc.) are available through the SNMP service (an SNMP v1 agent), which is always enabled. Configure the SNMP service with the Control Expert DTM to gain easy access to diagnostic information for the BMENOC0301/11 module and event notification for some services (like a change in the Ethernet port link state). You can configure SNMP manager IP addresses (MIB browser, CNM, etc.) as trap (event) notification destinations. The standard MIB-II (including the bridge MIB) provides diagnostic information through the SNMP service.
Ethernet Ports	You can diagnose network issues by examining packets to and from Ethernet ports when the service port is configured for port mirroring.
Embedded Web Pages	Embedded web pages provide diagnostics data through a web browser.

Web Server:

The web server in the BMENOC0301/11 processes requests from web pages.

Firmware Upgrade:

The firmware upgrade service allows the field upgrade of this module firmware using the Automation Device Maintenance or Unity Loader tool.

Services and Addresses

This table shows the availability of network services in terms of the relationship between the BMENOC0301/0311 module’s ports and its IP and MAC addresses:

Service	IP Address	MAC address
EtherNet/IP scanner	IP main	module MAC
Modbus	IP main	module MAC
FDR server and DHCP	IP main	module MAC
SNTP server	IP main	module MAC
other services*	IP main	module MAC
SNMP source IP address	IP main	module MAC
SNTP client source IP address	IP main	module MAC
LLDP	IP main	port MAC = (module MAC + 1, 2, 3, or 4)**
RSTP	IP main	port MAC = (module MAC + 1, 2, or 3)**
Other services: Web server. EtherNet/IP adapter, Modbus server/FTP *Ports: port 1: module MAC + 1 (service port) port 2: module MAC + 2 port 3: module MAC + 3 port 4: module MAC + 4 (Ethernet backplane)