Adapter Ethernet Ports

Ethernet Port Descriptions

Two of the Ethernet ports allow implicit I/O exchanges with the I/O scanner in the CPU. (An implicit I/O exchange has a maximum frame size of 1400 bytes.) The ports can be implemented alone or in redundant mode.

You can use a maximum of 31 adapters in a single Ethernet RIO network depending on the CPU used. For network topology planning, refer to the planning guide for your system.

These adapter modules have two or three 10/100 Base-T Ethernet ports:

Port	Description
SERVICE	The SERVICE port allows the diagnosis of Ethernet device network ports and provides access to external tools and devices (Control Expert, ConneXium Network Manager, HMI, and so forth). The port supports these modes: access port (default): This mode supports Ethernet communications. port mirroring: In this mode, data traffic from one of the other 2 ports is copied to this port. This allows a connected management tool to monitor and analyze the port traffic. disabled NOTE: The BMXCRA31200 does not have a SERVICE port. You can configure the SERVICE port either ONLINE or OFFLINE. In port mirroring mode, the SERVICE port acts like a read-only port. That is, you cannot access devices (ping, connection to Control Expert, and so forth) through the SERVICE port. Refer to Service Port Configuration.
DEVICE NETWORK	The DEVICE NETWORK copper ports are used to put the drop on the simple daisy chain loop. They provide: connections for RIO communications cable redundancy

Port

Description

SERVICE

The SERVICE port allows the diagnosis of Ethernet device network ports and provides access to external tools and devices (Control Expert, ConneXium Network Manager, HMI, and so forth). The port supports these modes:

access port (default): This mode supports Ethernet communications.
port mirroring: In this mode, data traffic from one of the other 2 ports is copied to this port. This allows a connected management tool to monitor and analyze the port traffic.
disabled

NOTE:

The BMXCRA31200 does not have a SERVICE port.
You can configure the SERVICE port either ONLINE or OFFLINE.
In port mirroring mode, the SERVICE port acts like a read-only port. That is, you cannot access devices (ping, connection to Control Expert, and so forth) through the SERVICE port.

Refer to Service Port Configuration.

DEVICE NETWORK

The DEVICE NETWORK copper ports are used to put the drop on the simple daisy chain loop.

They provide:

connections for RIO communications
cable redundancy

CAUTION

ETHERNET CONNECTION NON-OPERATIONAL

Do not connect a device with a speed in excess of 100 Mbit/s to any adapter port.

Failure to follow these instructions can result in injury or equipment damage.

Connecting a device with a speed in excess of 100 Mbit/s , the Ethernet link may not be established between the device and the module through its port.

BMECRA31210 Keying Pin

The BMECRA31210 adapter is designed to be installed on an Ethernet backplane in the main remote rack. The adapter supports the Modicon X80 I/O and partner modules with both Ethernet and X Bus connections. The two bus connectors are shown in items 1 and 2 below.

The adapter also has a keying pin (item 3 below) to keep it from being installed on a BMEXBP PV 01 backplane.

1	X Bus backplane connector
2	Ethernet backplane connector
3	Keying pin