![background image](http://html1.mh-extra.com/html/omron/sysmac-e3x-ect/sysmac-e3x-ect_operation-manual_742296024.webp)
1 - 3
1 EtherCAT Network
E3X-ECT EtherCAT Sensor Communication Unit Instration Manual
1-
1 Ov
erview o
f Et
herCA
T
Net
w
o
rks
1
1-
1-2
S
tru
ctur
e of Ether
CA
T
It is the "EtherCAT telegram" stored directly in an Ethernet frame that exchanges data regularly
between the EtherCAT Master Unit and Slave Units.
Each "EtherCAT telegram" is configured with telegram header (data length, including address of one or
more Slave Units, etc.), data, working counter (check bit).
When an Ethernet frame is compared to a "train", an EtherCAT telegram can be considered as "railway
car."
Ethernet
header
CRC
Ethernet data (Maximum 1498 bytes)
Data
Telegram
header
WKC
1...n EtherCAT telegram
EtherCAT
header
1st EtherCAT
telegram
2nd EtherCAT
telegram
n th EtherCAT
telegram
. . . . .
EtherCAT frame
Ethernet frame
WKC : Working counter
Summary of Contents for Sysmac E3X-ECT
Page 1: ...E3X ECT EtherCAT Sensor Communication Unit Operation Manual E413 E1 ...
Page 3: ......
Page 4: ...E3X ECT EtherCAT Sensor Communication Units Operation Manual Revised February 2012 ...
Page 5: ......
Page 29: ...1 EtherCAT Network 1 8 E3X ECT EtherCAT Sensor Communication Unit Instration Manual ...
Page 51: ...4 Installation and Wiring 4 12 E3X ECT EtherCAT Sensor Communication Unit Instraction Manual ...
Page 67: ...5 EtherCAT Communications 5 16 E3X ECT EtherCAT Sensor Communication Unit Instraction Manual ...
Page 137: ...A Appendix A 36 E3X ECT EtherCAT Sensor Communication Unit Instraction Manual ...
Page 139: ...Revision 2 E3X ECT EtherCAT Sensor Communication Unit Instraction Manual ...
Page 140: ......