From the course: Learning PLC Ladder Logic: 2 Diving Deeper

Introduction to sequence logic - Ladder Logic Tutorial

From the course: Learning PLC Ladder Logic: 2 Diving Deeper

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Introduction to sequence logic

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- [Instructor] Many PLC applications are usually done for operations that require a specific sequence. Here's a simple sequence for an operation. We load a part, cut it, paint it, and then unload it into a box. These steps repeat multiple times according to a preset plan and each step depends on the previous one. Now each of these steps would have various outputs to be On in order to do that specific step and various inputs would have to be True in order to move from step to another. In order to make it easier for programmers to follow a generic form to program a sequence operation, a state diagram is used.

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