The PLC Programming Language
According to the IEC 1131-3 programming languages used to program a PLC between lainLadder Diagram, Function Block Diagram, Statement List, Structure Text, and Sequential Functional Chart. But in real applications the PLC programming language most widely used type of ladder diagrams.
Ladder Diagram
Ladder diagram has a shape such as electrical circuits. A ladder diagram consists of a power rail on the right side and left diagram, connected by rung by a coil switching element and a specific element. Ladder Logic is a method of doing drawing electrical logic scheme. When this method is to use the highly popular language usage in PLC programming. Initially this ladder logic language used to display the display on the relay logic. Name ladder diagrams taken from the physical form of this language, which has two vertical lines at the end of each right and left, where between the two vertical lines have a horizontal line. When viewed as a whole, the language form it resembles a staircase or ladder diagrams. Ladder diagrams are often used by engineers and mechanics to make programming with PLC due to its simplicity and ease in understanding the language.
The following are basic commands in the ladder diagrams:
According to the IEC 1131-3 programming languages used to program a PLC between lainLadder Diagram, Function Block Diagram, Statement List, Structure Text, and Sequential Functional Chart. But in real applications the PLC programming language most widely used type of ladder diagrams.
Ladder Diagram
Ladder diagram has a shape such as electrical circuits. A ladder diagram consists of a power rail on the right side and left diagram, connected by rung by a coil switching element and a specific element. Ladder Logic is a method of doing drawing electrical logic scheme. When this method is to use the highly popular language usage in PLC programming. Initially this ladder logic language used to display the display on the relay logic. Name ladder diagrams taken from the physical form of this language, which has two vertical lines at the end of each right and left, where between the two vertical lines have a horizontal line. When viewed as a whole, the language form it resembles a staircase or ladder diagrams. Ladder diagrams are often used by engineers and mechanics to make programming with PLC due to its simplicity and ease in understanding the language.
The following are basic commands in the ladder diagrams:
1.
2.
LoadBar command is also called the normally close contact. Sometimes this command is also called the examined if closed (XIC). This means that this command will be worth one or 0 if executed, and vice versa, or a true value if not exercised.
3.
Out command also called OutputEnergize instruction. Out command on the language functions as outputan ladder and have a working principle similar to normally open contact, but act as outputan.
4.
OutBar command also called OutNot instruction. Outbar command has a function and working principle is similar to the normally close contact.
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