EtherCAT Wiring
The cable length between two EtherCAT devices must not exceed 100 m.
Cables and connectors
For connecting EtherCAT devices only Ethernet cables that meet at least the requirements of category 5 (CAT5) according to EN 50173 or ISO/IEC 11801 should be used. EtherCAT uses 4 wires for signal transfer.
EtherCAT uses RJ45 connectors. The pin assignment is compatible with the Ethernet standard (ISO/IEC 8802-3).
Pin | Core coloring | Signal | Description |
|---|---|---|---|
1 | yellow | TD + | Transmission Data + |
2 | orange | TD - | Transmission Data - |
3 | white | RD + | Receiver Data + |
6 | blue | RD - | Receiver Data - |
Due to automatic cable detection (auto-crossing) symmetric (1:1) or cross-over cables can be used between EtherCAT devices from Beckhoff.
The following Beckhoff cables are suitable for cabling of EtherCAT systems:
- ZB9010 (industrial Ethernet/EtherCAT cable, fixed installation, CAT5e, 4-wires)
- ZB9020 (industrial Ethernet/EtherCAT cable, drag chain suitable, CAT5e, 4-wires)
- ZS1090-0003 (RJ 45 connector, 4-pin, IP 20, for field-assembly)
- ZS1090-0005 (RJ 45 connector, 8-pin, (GigaBit suitable), IP 20, for field-assembly)
- ZK1090-9191-0001 (0.17m EtherCAT patch cable)
- ZK1090-9191-0005 (0.5m EtherCAT patch cable)
- ZK1090-9191-0010 (1.0m EtherCAT patch cable)
- ZK1090-9191-0020 (2.0m EtherCAT patch cable)
- ZK1090-9191-0030 (3.0m EtherCAT patch cable)
- ZK1090-9191-0050 (5.0m EtherCAT patch cable)
E-Bus supply
Notice | |
Malfunction possible! The same ground potential must be used for the E-Bus supply of all EtherCAT terminals in a terminal block! |