What type of network supports up to 64 devices with data rates between 125 and 500 Kbps, sharing power and communication on the same cable?

The choice of DeviceNet is accurate because this network protocol is specifically designed for industrial automation applications to connect various devices, such as sensors and actuators, in a distributed control system. DeviceNet operates on the CAN (Controller Area Network) bus and supports up to 64 devices, which is a critical feature for smaller systems that require multiple nodes.

In terms of communication speed, DeviceNet supports data rates ranging from 125 Kbps to 500 Kbps, making it suitable for real-time control applications where speed is essential but does not require the higher rates used in other protocols. Additionally, DeviceNet allows both power and communication to be delivered through the same cabling infrastructure, streamlining installation and reducing costs associated with wiring in machinery and control panels. This characteristic enhances its appeal in various industrial environments, providing a practical solution for connecting multiple devices efficiently.

The other options represent different network protocols, each with distinct characteristics and applications—ControlNet and EtherNet/IP are typically used for higher-speed operations with more extensive network capabilities, while Profibus has different specifications regarding device count and communication rates.