The IP address of a CompactLogix PLC can be viewed and edited using which communications software?

The correct choice in this scenario is RSLinx, as it serves as the communications software that allows users to view and edit the IP address of a CompactLogix PLC. RSLinx functions as a communication server that can connect to various Rockwell Automation devices, such as PLCs, and provides the necessary interface for managing network configurations, including IP settings.

Using RSLinx, users can easily access the configuration of devices on the network, view their properties, and make necessary changes to IP addresses or other communication parameters. This software plays a crucial role in facilitating efficient communication between programming environments and the controllers themselves.

Other software options, such as RSLogix and FactoryTalk, primarily focus on programming and managing the logic or visualization aspects of PLC operation and do not primarily serve the purpose of direct network management for viewing or editing IP addresses. Ethernet/IP refers to a protocol rather than a software application, and while it's integral to communications in industrial Ethernet networks, it does not provide a user interface for configuring IP addresses directly.