4
FnIO EtherCAT Network Adaptor NA-9286
FnIO S-Series
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5. Electrical Interface .................................................................................................................................................... 14
5.1.
FnBus System ............................................................................................................................................ 14
5.1.2. FnBus Pin Description ................................................................................................................................ 16
5.2.
EtherCAT Electrical Interface .............................................................................................................. 17
5.2.1.
NA-9286 RJ-45 Socket.......................................................................................................................... 17
5.2.2.
I/O Process Image Map ....................................................................................................................... 18
5.3.
Example ....................................................................................................................................................... 19
5.3.1.
Example of Input Process Image(Input Register) Map .......................................................... 19
5.3.2.
Example of Output Process Image(Output Register) Map .................................................. 20
6. ETHERCAT BASICS .................................................................................................................................................... 21
6.1.
EtherCAT Protocol .................................................................................................................................. 21
6.2.
EtherCAT State Machine ...................................................................................................................... 21
6.3.
EtherCAT Mailbox ................................................................................................................................... 23
6.4.
CoE Interface – parameter management in the EtherCAT system ................................... 26
6.5.
EtherCAT Reference ............................................................................................................................... 27
APPENDIX A ......................................................................................................................................................................... 28
A.1. Product List............................................................................................................................................................. 28
A.2. Glossary .................................................................................................................................................................... 30
