Omron FH series User Manual page 47

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The data exchanges that are cyclically performed between the EtherCAT master and EtherCAT slaves use

EtherCAT telegrams that are stored directly in the Ethernet frames.

Each EtherCAT telegram consists of a telegram header (including the data length and one or more slave

addresses), data, and a working counter (i.e., check bits).

Ethernet frame

Ethernet data (1,498 bytes max.)

1st to nth EtherCAT telegrams

EtherCAT frame

1st EtherCAT

2nd EtherCAT

nth EtherCAT

WKC: Working counter

Vision System FH/FZ5 Series User's Manual

EtherCAT Connections (FH-1000 series/FH-3000 series only)

for Communications Settings (Z342)

Troubleshooting