Portal de Periódicos da CAPES

The future of industrial communictions technology: Switched Ethernet

2004; Institution of Engineering and Technology; Volume: 15; Issue: 1 Linguagem: Inglês

10.1049/cce

1741-0460

M. Babb,

Embedded Systems Design Techniques

Siemens A&D recently released the third version of PROFInet, which extends the network into motion control applications, called "isochronous real-time communication" or IRT, the new scheme allows jitter accuracy of one millisecond. PROFInet v3 involves some reengineering of standard Ethernet. All stations on a PROFInet v3 network, including the network nodes, must be precisely synchronized. For isochronous real-time Ethernet, the switches are synchronized to the communication cycle with accuracy in the sub-microsecond range. For Seimens and their partners, the key to deploying 'hard' real-time Ethernet is in the special IRT switches.