Ladder program creation apparatus
AssigneeYokogawa Electric Corporation
InventorYuse Tomita
Life of this patent
Estimating the term…
Abstract
A ladder program creation apparatus may include a command listing table storage unit configured to store a command listing table, the command listing table registering standard command information and custom ladder command information, a custom ladder command information creation unit configured to create the custom ladder command information based on an operation by user, and a custom ladder command information storage control unit configured to register the custom ladder command information, which has been created by the custom ladder command information creation unit, and the standard command information in the command listing table.
Claims17
A ladder program creation apparatus comprising:
- a command listing table storage configured to store a command listing table, the command listing table registering a standard command and a custom ladder command that constitute a ladder program;
- a custom ladder command creation screen configured to create the custom ladder command based on an operation by a user typing an arithmetic equation on the custom ladder command creation screen;
- a custom ladder command storage controller configured to register the custom ladder command, which has been created by the custom ladder command creation screen, and the standard command in the command listing table;
- and
- a ladder program creation screen configured to display a command display area and a program editing area, the command display area displaying names of the standard command and the custom ladder command that have been registered in the command listing table, the program editing area being constituted to create a desired ladder program by dragging and dropping a desired command selected from the standard command and the custom ladder command displayed in the command display area.
A ladder program creation method comprising:
- creating a custom ladder command by using a custom ladder command creation screen based on an operation by a user typing an arithmetic equation on the custom ladder command creation screen;
- registering the custom ladder command, which has been created, in a command listing table;
- displaying names of standard command and the custom ladder command, which have been registered in the command listing table, in a command display area in a display unit;
- creating a desired ladder program by selecting desired commands from the standard command and the custom ladder command, the names of which have been displayed in the command display area, and by dragging and dropping the selected commands from the command display area to a program editing area in the display unit.
A computer program product embodied on a non-transitory computer readable medium, the computer program product comprising:
- instructions to create a custom ladder command by using a custom ladder command creation screen based on an operation by a user typing an arithmetic equation on the custom ladder command creation screen;
- instructions to register the custom ladder command, which has been created, in a command listing table;
- instructions to display names of standard command and the custom ladder command, which have been registered in the command listing table, in a command display area in a display unit;
- instructions to create a desired ladder program by selecting desired commands from the standard command and the custom ladder command, the names of which have been displayed in the command display area, and by dragging and dropping the selected commands from the command display area to a program editing area in the display unit.
Dependencies are inferred from the claim text.