Assignment of the ETHERNET Ports¶
The terminal unit for the communication interface module provides two ETHERNET interfaces with the following pin assignment. The pin assignment is used for the ETHERCAT master (communication module CM5xy-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.