Ladder & Basic Programming
There are five basic PLC programming languages PLC uses for system
controls. They include; Ladder Diagrams,Functional Block
Diagram,Instruction List, Structured Text and Sequential Function Charts.
Ladder Logic Diagram is most...
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Ladder & Basic Programming
There are five basic PLC programming languages PLC uses for system
controls. They include; Ladder Diagrams,Functional Block
Diagram,Instruction List, Structured Text and Sequential Function Charts.
Ladder Logic Diagram is most utilized and common PLC programming
language among most industrial control processes. As the name suggest these
are diagrams made of horizontal and vertical lines which are analogous to
circuit diagrams. The power lines, or rails are similar to vertical sides of a
physical ladder with the horizontal lines running across the rails the rungs of
the ladder. The ladder diagrams shows the the process control exercise, for
example the switching of a motor in series with its switch in symbols without
showing the actual location of the components.
The process of drawing the ladder diagrams follows certain conventions,
they include;
1. Vertical lines of the diagram represent the power rails where the circuit
components are connected and power fl
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