Ladder program creation device

Abstract

There are provided: a display unit (11) that displays an editor screen for creating a ladder diagram; a touch panel (12) provided to overlap on the display unit (11); an operation detection unit (21) detecting an operation performed on the touch panel (12); a display control unit (22) that causes the display unit (11) to display a representative icon corresponding to one of programming items that are insertable into the ladder diagram within the editor screen, and to display a display box in which derived icons corresponding to other programming items insertable into the ladder diagram are arranged around the representative item, when the operation detection unit (21) detects a touch operation on the touch panel (12) at a representative icon displaying position; and a processing execution unit (23) that, when the operation detection unit (21) detects that a finger having performed the touch operation or a finger having performed the touch panel and then slid is lifted off the touch panel (12), inserts the programming item corresponding to the representative icon or derived icon displayed at a position where the finger is detected to be lifted off the touch panel (12), into the ladder diagram.

Dependencies are inferred from the claim text.