Fig. 17 Internal And External Port Assignment Ek1100 Bus Coupler - Beckhoff EK18 Series Documentation

Fig. 17: Internal and external port assignment EK1100 Bus Coupler
Frame processing sequence
• The EtherCAT frame arriving at the EtherCAT signal input is passed on by Port 0 (A) to the EtherCAT
processing unit.
• The EtherCAT frame arrives at Port 1 (B) and the data frame departs via Port 1 (B) to the following
slave in the EtherCAT terminal network (if a slave is connected there and reports "Link").
• After the arrival of the data frame at Port 1 (B) from the terminal network, this is passed on to Port 2 (C)
and leaves the coupler at the following EtherCAT output (if a slave is connected there and reports
"Link").
• The data frame arrives at Port 2 (C). This is now passed on to Port 0 (A) and leaves the EK1100 via
the EtherCAT input.
EK18xx Version: 2.2
Product overview
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