1. A Hardware Independent Real-time Ethernet for Motion Control Systems
- Author
-
Hu Tianliang, Ke Wang, Ji Shuai, and Chengrui Zhang
- Subjects
Ethernet ,Ethernet Global Data Protocol ,Computer Networks and Communications ,Computer science ,business.industry ,Node (networking) ,Ethernet flow control ,Clock synchronization ,Computer Science Applications ,Synchronous Ethernet ,Computational Theory and Mathematics ,RDMA over Converged Ethernet ,Embedded system ,Ethernet over SDH ,business ,Computer hardware - Abstract
Ethernet for Manufacture Automation Control (EtherMAC) is a new kind of real-time Ethernet used in motion control systems. It adopts a line topology with a standard industrial computer based master node and field-programmable-gate-array based slave nodes. EtherMAC employs one slave node to manage cycle communication and clock synchronization, so the real-time demand for its master node can be greatly reduced and dedicated hardware is no longer mandatory. Its distributed clock compensation mechanism can get synchronization accuracy in nanosecond order. The advantages of industrial computer and field programmable-gate-array are combined with EtherMAC, so that high control performance can be achieved.
- Published
- 2015