Learn About Flow Chart Suitable for beginner and Diploma students
- 1. Unit 2 Flow Chart and Diagram
- 2. Introduction Flow chart and timing diagram are the most basic things that students must be able to know It shows the basic instruction for PLC applications before start programming using ladder diagram
- 3. Learning Outcome After completing this topic, student should be able to: Describe a problem and their solution in structured way Create flowchart to represent problem and the solution Convert flowchart method to ladder diagram programming method
- 4. Sequential and Process Problem Problem solving method, a good problem should answer this questions: What is the control problem?? Who has the control problem?? What form the solution can be?? 5 questions: what, how, where, when, and why
- 5. Problem Understanding and Action Problem definition Problem analysis Generating possible solutions Analyzing the solutions Selecting the best solutions Planning the next course of action (next step)
- 6. Introduction to Flowchart Flow charts are easy-to-understand diagrams showing how steps in a process fit together. This makes them useful tools for communicating how processes work Furthermore, the act of mapping a process out in flow chart format helps to clarify your understanding of the process
- 7. Introduction to Flowchart cont.
- 8. Introduction to Flowchart cont. Water Level Warning System Process, Water level danger Start Read water level sensor OFF alarm ON alarm Finish yes no
- 9. Flowchart and Process A flowchart of Tank Filter System
- 10. Flowchart and Process cont. The general method for constructing flowcharts is: Understand the process. Determine the major actions, these are drawn as blocks. Determine the sequences of operations, these are drawn with arrows. When the sequence may change use decision blocks for branching.
- 11. Flowchart to Block Logic and Ladder Diagram Add labels to each block in the flowchart
- 12. Flowchart to Block Logic and Ladder Diagram cont. Label the Flowchart Blocks and Arrows
- 13. Flowchart to Block Logic and Ladder Diagram cont. The transition logic