Preventing Data Loss in Linux-Based Ethe rCAT Master

An, Cheol-Jin; Yi, Hyun-Chul; Kim, Hyoung-Woo; Park, Sung-Mun; Choi, Joon Young

doi:10.7763/ijfcc.2015.v4.394

Cited by 1 publication

(1 citation statement)

References 7 publications

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“…Simple Open-Source EtherCAT Master (SOEM) and IgH are existing open-source Ether-CAT master stacks. The literature [2] designed a data transceiver algorithm to increase the stability of EtherCAT masters. In [3], an EtherCAT frame detection function was developed to decrease the frame loss rate.…”

Section: Introductionmentioning

confidence: 99%

A Novel Heterogeneous Parallel System Architecture Based EtherCAT Hard Real-Time Master in High Performance Control System

et al. 2022

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EtherCAT is one of the preferred real-time Ethernet technologies. However, EtherCAT is not applicable in high-end control fields due to real-time constraints. Clock synchronization and cycle time are the most representative limitations. In this paper, a novel Heterogeneous Parallel System Architecture (HPSA) with features of parallel computation and hard real-time is presented. An HPSA-based EtherCAT hard real-time master is developed to significantly improve clock synchronization and shorten cycle time. Traditional EtherCAT masters feature serial processing and run on a PC. This HPSA-based master consists of two parts: EtherCAT master stack (EMS) and EtherCAT operating system (EOS). EMS implements the parallel operation of EtherCAT to realize the shorter cycle time, and EOS brings a hard real-time environment to the HPSA-based master to improve clock synchronization. Furthermore, this HPSA-based master operates on a heterogeneous System-on-a-chip (SoC). EMS and EOS form a heterogeneous architecture inside this SoC to achieve low-latency process scheduling. Experimental results show that in our HPSA-based EtherCAT hard real-time master, the cycle time reaches the sub-50 μs range, and the synchronization error reduces to several nanoseconds. Thus, this HPSA-based master has great application value in high-performance control systems.

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Section: Introductionmentioning

confidence: 99%