What is the effect of a programmed XIC instruction with the correct address in a PLC?

The programmed XIC (Examine If Closed) instruction in a Programmable Logic Controller (PLC) is directly associated with monitoring the state of an input. When an XIC instruction is executed with the correct address, it effectively allows current flow through the corresponding input if that input is currently closed (or active). This means that the instruction assesses the status of the input point; if the condition is true (the input is indeed closed), the instruction proceeds to enable the processing of any subsequent instructions or output operations.

In the context of PLC programming, the XIC instruction serves a critical function in triggering further logic based on real-time input conditions. This functionality is fundamental in creating logical sequences in the PLC's control processes. Therefore, when the correct address is specified, and the input is in the closed state, allowing the current flow signifies that the system is set to perform the intended operations downstream in the logic sequence.