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3. EtherCAT Communication
3.4
Synchronization
Synchronization modes provided from controller are as below.
Figure 3.6: Type of EtherCAT Synchronization and Differences
3.4.1
Free Run
Controller runs under non-synchronization with Master. Under Free Run mode, Master and Controller
has an individual independent Cycle.
3.4.2
SM Event
Controller runs under synchronization with SM Event of EtherCAT communication. SM Event is gener-
ated once controller receives EtherCAT Frame.
Once synchronization by SM Event, each one of controller has few us range of jitter.
3.4.3
DC Sync Event
Synchronized controller runs under Sync Interrupt is generated according to Distributed Clock (following
DC).
DC is synchronized time shared between Master and Slave. With synchronized clock, interrupt is gen-
erated under accurate synchronization and controller executes commands under accurate timing.
In this case, each one of controller has few us range of jitter.
Rev.37
FASTECH Co., Ltd.
29
Содержание Ezi-STEPII EtherCAT MINI
Страница 1: ...Open Loop Stepping System EtherCAT Network User Manual Ezi STEPII EtherCAT MINI FASTECH Co Ltd ...
Страница 10: ...Chapter 1 Product Specification Rev 37 FASTECH Co Ltd 10 ...
Страница 14: ...Chapter 2 Installation Rev 37 FASTECH Co Ltd 14 ...
Страница 25: ...Chapter 3 EtherCAT Communication Rev 37 FASTECH Co Ltd 25 ...
Страница 31: ...Chapter 4 CiA402 Drive Profile Rev 37 FASTECH Co Ltd 31 ...
Страница 55: ...Chapter 5 Operation Rev 37 FASTECH Co Ltd 55 ...
Страница 59: ...Chapter 6 EtherCAT Object Dictionary Rev 37 FASTECH Co Ltd 59 ...