10/7/2023 0 Comments Ladder logic program lamp flashThe diagram below shows a model of the PLC Program Scan Cycle. Because inputs can change at any time, this process repeats over and over again while the PLC is in RUN mode. During the Program Scan Cycle, the PLC reads the inputs, solves the Ladder Logic, and energizes (or de-energizes) outputs. When a PLC executes a program, it must know, in real-time, when external devices controlling a process are changing.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |