Updating performance of a display screen in a terminal device that displays a screen for remotely monitoring an object to be controlled by a control device is appropriately maintained. An information device for factory automation connected to the control device that controls an object communicates with a terminal device having a display capable of displaying a screen for remotely monitoring the control device. The screen includes one or more components. The screen data for displaying the screen includes attributes of the respective components relating to the display, and a logic executed by the programmable indicator to determine the attribute values. When the terminal device displays a screen, the programmable indicator transmits the attributes and attribute values of the respective components in the screen data to the terminal device.