Field Bus Interfaces¶
The ETHERCAT communication module provides 2 RJ45 interfaces with the following pin assignment. The pin assignment is used for the ETHERCAT slaves (communication interface modules CI5xy-ETHCAT) as well.
| Interface | Pin | Signal | Description |
|---|---|---|---|
| 1 | TxD+ | Transmit data + | |
| 2 | TxD- | Transmit data - | |
| 3 | RxD+ | Receive data + | |
| 4 | NC | not used | |
| 5 | NC | not used | |
| 6 | RxD- | Receive data - | |
| 7 | NC | not used | |
| 8 | NC | not used | |
| Shield | Cable shield | Functional earth |
Note
For further information regarding wiring and cable types see chapter ETHERNET ETHERNET Connection Details.
Note
The ETHERCAT network differentiates between input-connectors (IN) and output-connectors (OUT):
At the ETHERCAT slaves (communication interface modules), the ETH1-connector is IN and the ETH2-connector is OUT.
At the ETHERCAT master (communication module), the ETHCAT1 connector has to be used. The ETHCAT2 connector is reserved for future extensions.