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Anybus CompactCom 40 Ethernet products are available in a special version that includes a Transparent Ethernet interface. This means that industrial Ethernet protocol data (for example PROFINET or EtherNet/IP) is processed as usual by the CompactCom while all other Ethernet data passes straight through the module transparently — speeding up the network communication while allowing you to develop your own IT-functions.
The CompactCom can recognize and separate incoming Ethernet data packets. The real-time industrial Ethernet protocol data is processed by the CompactCom as usual, while other Ethernet traffic (such as http and ftp packets) is forwarded transparently to the host application processor.
The “other Ethernet traffic” is forwarded via the Transparent Ethernet interface - also called “RMII (Reduced Media Independent Interface)” - of the Anybus CompactCom.
Consequently, users with high-end processors and software, such as Linux with built in TCP/IP stack andIT services, get a transparent Ethernet channel through the CompactCom module. The Anybus CompactCom takes care of the complex industrial real-time protocols, leaving the rest to the host.
There is no need for additional Ethernet ports since all communication goes through the Anybus CompactCom.
The block diagram above shows how the communication is handled inside the Anybus CompactCom. Inside, there is a “traffic separator” which is able to detect and separate industrial Ethernet protocol data from other Ethernet data.
The real-time data is processed by the CompactCom while other Ethernet data is sent routed via the Reduced Media Independent Interface (RMII) interface for transparent distribution to the application.
The Transparent Ethernet RMII interface emulates a PHY operating at 100Mbit/s full duplex. The RMII interface is connected directly to an Ethernet MAC in the host application processor.
Anybus CompactCom Transparent Ethernet versions and Order Codes in Brick and Module formats