Fieldbus & Industrial Networking


Profinet device for Ethercat I/O system

July 2011 Fieldbus & Industrial Networking

The EtherCAT Terminal system enables the integration of fieldbus and industrial Ethernet systems via local master/slave terminals. As a Profinet device, the EL6631-0010 slave terminal enables the simple exchange of data between EtherCAT and Profinet RT networks. The terminal features two RJ45 ports for the simple construction of a line topology.

The implementation of the internal network services LLDP (for topology recognition) and SNMP (for monitoring) provides the data for network diagnostics. LLDP supports the automatic recognition of the physical cabling of the network. The EL6631-0010 can exchange up to 1000 bytes of user data between EtherCAT and Profinet in a cycle time of 1 ms. Additional implemented characteristics are the I&M functions 1-4 (identification and maintenance profiles) and shared device as per GSDML 2.25. With ‘shared device’, the EL6631-0010 can emulate a further Profinet device, which means that one EL6631-0010 terminal can be connected to two Profinet controllers, even though only one device is physically present.

As an alternative to the Profinet device terminal, any PC-based Beckhoff controller can be converted into a Profinet device using the TwinCAT Profinet IO device software.

For more information contact Kenneth McPherson, Beckhoff Automation, +27 (0)11 795 2898, k.mcpherson@beckhoff.com , www.beckhoff.co.za



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