Cluster frames are more susceptible to electromagnetic interference than separate frames. If a frame is corrupted, the bundled frame will lose the entire data frame. A special EtherCAT feature allows all communications to be routed through the internal I/O terminal bus at the same time, however, the added risk of adding more interference offsets its superior performance. EtherCAT and SERCOS networks are usually organized in a logical loop that can be physically closed at the primary station or closed at the last node in a daisy-chain manner. EtherCAT provides a branch connection through a specific junction point, but the up and down and return of the entire frame is still in accordance with this logical loop. Only POWERLINK includes master and line redundancy in its specifications and is implemented in real projects. For PROFINET and Ethernet/IP, application implementation based on specific switching methods is also possible. POWERLINK, Ethernet/IP and PROFINET provide user hot swap capability, while SERCOS III and EtherCAT are subject to some restrictions due to their necessity to adopt a ring topology. SERCOS III allows a node to be kicked out of the network, in this case adjacent The two nodes are close to the TX and RX lines, and the nodes can reach the other through the primary station. EtherCAT does not support hot swap capability. SHENZHEN CHONDEKUAI TECHNOLOGY CO.LTD , https://www.siheyidz.com In terms of system evaluation, openness is the key to long-term operational viability. In addition, technical and strategic considerations play a key role in ensuring a long-term investment security decision.
