Yaskawa MP900 Series Machine Controller New Ladder Editor - Manual (Page 38)

2.1 PROGRAMMING
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2.1 PROGRAMMING
This new ladder editor uses a rung style editing that is difference from the original ladder editor.
The rung is first specified in a program and then the instruction is placed on it. The location of
instruction or the destination of a branch operation is shown so the editing operation such as Cut,
Copy, and Paste is easier to use.
„ Rules for Rung Style Editing
There are rules to use the rung style editing.
• Insert a rung connected with the left power rail and the right power rail first.
• Insert a branch if the parallel circuit is required.
• Arrange instruction on the rung or the branch.
2.1.1 Object
The operation in the ladder program is defined as the object.
„ Objects In the Program Window
There are different kinds of objects in the program window.
1. Program Comment
This is a comment for the program, and only one per one program window is displayed.
The Cut and Delete operation is prohibited.
2. Branch Block
This is a block that two or more branches are located.
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