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

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Understand bottle style logic

Understand bottle style logic - Ladder Logic Tutorial

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

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Understand bottle style logic

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- [Instructor] When it comes to PLC ladder logic programming there is a general format for the rungs for the sequential logic. And the format is called the bottle logic. It is named after the shape of the control rung which have a bottle like shape. Each state in the state diagram will have one bottle control rung in the control section. So if we have three states then we will have three rungs off the bottle logic in the control section. This is the general format. The rung has the following. Three input instructions, and a second rung, a CLN instruction, for the fourth input instruction. And one output. And we call this the control section. This is how the control section looks like. As the name says it. It only programs the control part of the logic. The outputs are in the output section. So the ladder logic will look like this, with two main sections. Control and output sections.

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