一种基于FPGA的EtherCAT总线协议的虚拟从站与增量监控方法及系统
By using FPGA hardware-level parallel processing and shadow configuration register groups, the problems of bus interruption and WKC deviation accumulation caused by slave offline were solved, realizing rapid recovery and real-time monitoring of the EtherCAT bus, and improving communication continuity and robustness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU DAODA INTELLIGENT TECH CO LTD
- Filing Date
- 2026-05-13
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, bus interruptions, WKC deviation accumulation, and recovery delays caused by slave offline are significant. Existing FPGA implementations lack hardware-level virtual slave replacement mechanisms and real-time monitoring, failing to meet the microsecond-level response requirements of industrial communication.
By employing FPGA hardware-level parallel processing and shadow configuration register group, pre-stored slave PDO mapping template and WKC incremental expectation value, a virtual loopback channel is constructed. The virtual slave engine generates response data frames, realizes parallel verification of data frames and virtual slave replacement, and restores data exchange.
It significantly improves the communication continuity and system robustness of the EtherCAT bus in scenarios where slave stations are abnormally offline, shortens recovery time, reduces manual diagnosis and maintenance costs, and ensures seamless operation of high real-time applications.
Smart Images
Figure CN122179265B_ABST