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3. EtherCAT Communication
3.1
CAN application protocol over EtherCAT
Ezi-STEPII EtherCAT MINI is EtherCAT communication embedded type of controller to support CAN
application protocol over EtherCAT (CoE). EtherCAT Slave structure is as below.
Figure 3.1: EtherCAT Structure
3.1.1
Object Dictionary
Object Dictionary is dictionary of Objects what product has.
3.1.2
Mailbox Communication
Master and Slave commands and receives Service Data Object (SDO) at Mailbox communication (SDO
Communication). This communication method is the way of message transfer and master delivers com-
mand and slave responses.
SDO Communication used for setting or confirmation of objects at Object Dictionary. This communication
can be used under Pre-Operational, Safe-Operational, Operational status of controller.
Rev.37
FASTECH Co., Ltd.
26
Summary of Contents for Ezi-STEPII EtherCAT MINI
Page 10: ...Chapter 1 Product Specification Rev 37 FASTECH Co Ltd 10 ...
Page 14: ...Chapter 2 Installation Rev 37 FASTECH Co Ltd 14 ...
Page 25: ...Chapter 3 EtherCAT Communication Rev 37 FASTECH Co Ltd 25 ...
Page 31: ...Chapter 4 CiA402 Drive Profile Rev 37 FASTECH Co Ltd 31 ...
Page 55: ...Chapter 5 Operation Rev 37 FASTECH Co Ltd 55 ...
Page 59: ...Chapter 6 EtherCAT Object Dictionary Rev 37 FASTECH Co Ltd 59 ...