34
JVL Industri Elektronik A/S - User Manual - Ethernet for MAC and MIS motors
3.1
Introduction to EtherCAT®
3.1.1
Intro to EtherCAT®.
EtherCAT® is a Real Time Ethernet technology which aims to maximize the use of the
100 Mbit, full duplex Ethernet bandwidth. It overcomes the overhead normally associat-
ed with Ethernet by employing "on the fly" processing hardware.
An EtherCAT® net consists of a master system and up to 65535 slave devices, connect-
ed together with standard Ethernet cabling.
The slave devices process the incoming Ethernet frames directly, extract or insert rele-
vant data and transfer the frame to the next slave device, with a delay of approx. 4
μ
s.
The last slave device in the bus segment sends the processed frame back, so that it is re-
turned by the first slave to the master as a kind of response frame.
There are several protocols that can be used as the application layer. In the CANopen
over EtherCAT® (CoE) technology, the CANopen protocol is applied to EtherCAT®.
CANopen defines Service Data Objects (SDO), Process Data Objects (PDO) and the
Object Dictionary structure to manage the parameters. Further information about Eth-
erCAT®, is available from the EtherCAT® technology group
http://www.ethercat.org
.
TT3041-02GB
MAC EtherCAT® Module
Type:
MAC00-
4 (shown) or
MAC00-
41 (extended I/O)
To be used in following servo products:
MAC50, 095, 140 and 141
MAC400 and MAC402
MAC800
MAC1500 and MAC3000
EC
EC
MIS EtherCAT® motors.
Type:
MIS34xxx
xx85 or
To be used in following stepper products:
- Integrated from factory
EC
MIS43xxx
xx85
EC
Summary of Contents for MAC00-EC4
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