What configuration might be required for an Ethernet module in ControlLogix?

Setting the correct IP address and subnet mask is essential for an Ethernet module in ControlLogix. The communication between devices on a network relies on unique IP addresses to identify each device and facilitate communication. Without appropriate address configuration, devices will not be able to recognize each other on the network, leading to communication failures.

Specifically, the IP address allows the device to be accessed over the network, while the subnet mask defines the network's size and the range of addresses available within that subnet. Proper configuration of both ensures that the module can communicate effectively with other devices in the same network segment.

In contrast, additional hardware components may not be needed for basic Ethernet connectivity if the existing setup meets the necessary specifications. Configuring a wireless connection is not typically applicable when dealing with standard Ethernet modules, which rely on wired connections. Lastly, connecting to a local server for updates is not a fundamental requirement for the module's basic operation, although it may be relevant for software maintenance or updates but not for normal Ethernet configuration.