M8 Connector - Cabling
A list of the EtherCAT cable, power cable, sensor cable, Ethernet-/EtherCAT connectors and the field assembled connectors can be found at the following link: https://www.beckhoff.com/en-us/products/i-o/accessories/
You can find the corresponding data sheets at the following link: https://www.beckhoff.com/en-us/support/download-finder/data-sheets/
EtherCAT cable
For connecting EtherCAT devices only shielded Ethernet cables that meet the requirements of at least category 5 (CAT5) according to EN 50173 or ISO/IEC 11801 should be used.
Recommendations about cabling You may get detailed recommendations about cabling EtherCAT from the documentation "Recommendations for the design of the infrastructure for EtherCAT/Ethernet", that is available for download at www.Beckhoff.com. |
EtherCAT uses 4 wires for signal transfer.
Due to automatic cable detection (auto-crossing) symmetric (1:1) or cross-over cables can be used between EtherCAT devices from Beckhoff.
M8 Connector - pin assignment
Signal | Description | Pin (M8) |
---|---|---|
Tx+ | Transmit Data+ | 1 |
Tx- | Transmit Data- | 4 |
Rx+ | Receive Data+ | 2 |
Rx- | Receive Data- | 3 |
Shield | Shielding | Housing |