Information transfer apparatus and method transferring to another terminal information transmitted from server to client, and machine-readable recording medium recorded with program realizing information transfer method
A transfer apparatus transfers a data item included in a web page to a predetermined terminal. The transfer apparatus includes a data region extraction unit extracting a plurality of data items from a web page transmitted towards a client computer, a button-added web page generation unit generating transmission data causing a select button of a relevant data item to appear in response to specifying a display region of the corresponding data item at the client computer according to the extracted data item, and a data format conversion unit receiving request data from a client computer in response to transmission data, and converting the data format of the requested data for transfer to a terminal.
Screen data is generated by a screen generating processor (74) of a control host computer (7) and transmitted to a programmable display apparatus (5). In accordance with the screen data, the programmable display apparatus (5) inquires a PLC (3) or the like about a state of a device (21), so as to update the display or transmit a control instruction depending on an input result. On the other hand, a control host computer (7) has a public server section (77) to transmit to a client apparatus (9) via the Internet an applet, which is generated by a compiler (76) compiling the screen data. The client apparatus (9) executes the applet to transmit to the public server section (77) an or the control instruction inquiry similar to those the programmable display apparatus (5) makes. In this way, the display is updated in accordance with a response. This realizes a control system, which allows a display content of the programmable display apparatus (5) to be remotely checked from a remote area remote from the programmable display apparatus (5), without newly generating a display screen.
