Abstract: A data creating device includes: a storage unit to store library data in which character strings are correlated with objects for displaying data acquired from a control device or sending data to the control device; a recognition processing unit to recognize a character string drawn in one or more pieces of image data; a screen data creation processor to search the library data using the character string recognized by the recognition processor to acquire an object correlated with the character string recognized by the recognition processing unit, and create one or more pieces of screen data in which the acquired object is arranged; and a device name input processing unit to accept input of a device name to the object arranged in the one or more pieces of screen data, the device name uniquely specifying a memory area in the control device.