Ladder program editing support apparatus and ladder program editing method
AssigneeMitsubishi Electric Corporation
InventorTomo Horikawa
Life of this patent
Estimating the term…
Abstract
A ladder program editing support apparatus edits a ladder program by causing a display to display a plurality of circuit elements that is each displayed as a symbol in an area between a plus bus line and a minus bus line in the ladder program and makes up the ladder program. The ladder program editing support apparatus includes the display that displays the ladder program, and an edit control unit that selects a selected range to be edited within the ladder program displayed on the display and displays identification information on the circuit elements included in the ladder program within the selected range on the display in the form of a list according to a preset displaying order.
Claims28
A ladder program editing support apparatus for editing a ladder program by causing a display to display a plurality of circuit elements that is each displayed as a symbol in an area between a plus bus line and a minus bus line in the ladder program and makes up the ladder program, the apparatus comprising:
- the display to display the ladder program;
- and
- edit control circuitry to display identification information on the circuit elements included in the ladder program within a selected range to be edited within the ladder program displayed on the display on the display in the form of a list according to a preset displaying order.
A ladder program editing support apparatus for editing a ladder program described over a plurality of rows by causing a display to display a plus bus line and a minus bus line in the ladder program and a plurality of circuit elements that is each displayed as a symbol in an area between the plus bus line and the minus bus line and makes up the ladder program, the apparatus comprising:
- the display to display the ladder program;
- an edit control circuitry to select a selected range to be edited within the ladder program displayed on the display;
- and
- a memory to store the ladder program within the selected range together with position information that specifies positions on the display of the circuit elements included in the ladder program within the selected range.
A ladder program editing method in a ladder program editing support apparatus that edits a ladder program by causing a display to display identification information on a plurality of circuit elements that is each displayed as a symbol in an area between a plus bus line and a minus bus line in the ladder program and makes up the ladder program, the method comprising:
- a first step of displaying the ladder program on the display;
- a second step of causing the display to display the identification information on the circuit elements included in the ladder program within a selected range to be edited within the ladder program displayed on the display in the form of a list according to a preset displaying order.
A ladder program editing method in a ladder program editing support apparatus that edits a ladder program described over two or more rows by causing a display to display a plus bus line and a minus bus line and a plurality of circuit elements that is each displayed as a symbol in an area between the plus bus line and the minus bus line and makes up the ladder program, the method comprising:
- a first step of displaying the ladder program on the display;
- a second step of storing, in a memory, the ladder program within a selected range to be edited within the ladder program displayed on the display together with position information that specifies coordinate positions on the display of the circuit elements included in the ladder program within the selected range.
Dependencies are inferred from the claim text.