With the introduction of EtherCAT P, Beckhoff has further advanced its EtherCAT technology, which is now a global standard in industrial communication. EtherCAT P integrates ultra-fast EtherCAT communication with a 24 V power supply for both the system and peripherals—optionally including power delivery. This innovation enables Single Cable Automation (OCA) at the field level, allowing machines and devices to be connected seamlessly, from 24 V sensors all the way up to 600 V drives, without the need for a traditional control cabinet.
EtherCAT P delivers both the 24 V DC power supply for EtherCAT P slaves and the connected sensors and actuators through a single 4-core Ethernet cable. The US (system and sensor power) and UP (actuator peripheral voltage) are electrically isolated and can supply up to 3 A of current to the connected components, ensuring reliable and safe operation.
**EtherCAT P – the ideal bus for sensors, actuators, and measurement technology**
By integrating the US and UP currents directly into the wires of a 100 Mbit/s Ethernet cable, EtherCAT P offers an economical and compact connection solution. This makes it particularly well-suited for applications involving sensors, actuators, and measurement devices. It allows for easy connection of small I/O stations to terminal boxes and supports distributed I/O components. Beckhoff has developed a dedicated M8 connector for EtherCAT P, featuring a mechanical code that prevents confusion with standard EtherCAT slave connectors.
**Dual cable connection: EtherCAT and power supply**
**Dual cable connection: EtherCAT and power cable solution: EtherCAT P**
EtherCAT P (on the right) combines high-performance EtherCAT communication with a separate power supply system within a single 4-conductor Ethernet cable. To connect components that require higher voltages and/or currents, a complete EtherCAT P connector family is available, covering all application needs up to 400 V AC or 600 V DC, supporting drives up to 64 A. This makes it simple to connect all field-level components. For I/O applications, interfaces with IP 20 and IP 67 protection ratings are available. The system is also suitable for AC and DC motors, actuators, valve terminals, and various sensors such as proximity Switches, encoders, and rotary encoders. For vision systems, cameras, barcode scanners, and 3D scanners can be easily integrated.
**EtherCAT P simplifies system cabling**
The core concept behind EtherCAT P is to simplify automation system cabling by reducing the number of connectors required for field devices. A single-cable solution that meets individual power needs and is highly scalable can be deployed throughout the field level. For 24 V applications, a standard Ethernet cable is sufficient. For higher voltages and currents, EtherCAT P can be integrated into the power cable. Beckhoff provides a wide range of cables and connectors tailored for these applications.
This approach eliminates the need for separate power cables, significantly reducing material and assembly costs while minimizing installation errors. It also reduces space requirements in cable runs, control cabinets, and the machine itself. Additional benefits include more compact and organized wiring, as well as smaller, more efficient sensors and actuators. This gives machine builders greater design flexibility while lowering hardware and system costs through a user-friendly, tool-assisted layout.
**EtherCAT P provides an efficient single-cable solution for the entire field layer**
**Direct power to the device and flexible topology**
The topology of EtherCAT P is identical to the familiar EtherCAT topology, offering the same level of flexibility. Line, tree, and star configurations can be combined freely to achieve the most cost-effective system design. Unlike traditional Power over Ethernet (PoE), EtherCAT P users can also cascade through a single feed device. The cascading capability of EtherCAT P devices is limited only by voltage drop, but this can be managed by adding additional feed points along the network.
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