What is a "networked PLC"?

A "networked PLC" refers to a programmable logic controller that has the capability to communicate with other controllers, devices, and systems over a network. This type of PLC allows for greater flexibility and integration within automation systems, enabling data exchange and coordination between multiple controllers and peripheral devices. This networking capability can be crucial for larger and more complex automation processes, providing centralized control, remote monitoring, and more efficient operation.

Such PLCs can utilize various communication protocols, such as Ethernet/IP, Modbus TCP, or Profibus, to facilitate this interaction. The ability to share information across devices enhances the overall efficiency and control of manufacturing or industrial processes, making it essential for modern automation applications.

In contrast, the other options highlight characteristics that do not align with the concept of a networked PLC. Options focusing on manual input, isolated operation, or limited communication capabilities miss the key aspect of interconnectivity that defines a networked PLC. Such contrasting definitions help clarify the modern role of PLCs in integrated industrial systems.