CONTROL SYSTEM AND RECORDING MEDIUM RECORDED WITH PROGRAM THEREFOR

摘要

PROBLEM TO BE SOLVED: To realize a control system capable of confirming the state of a device to be displayed by a controller by a terminal allocated to a remote place from a display such as a programmable display for control without preparing a client device or a server device to perform a special operation and providing a new display screen. SOLUTION: A host computer 16 for controlling a local control system 2 repeatedly generates image files showing screens presently displayed on the respective programmable displays 14 at prescribed timing and stores them in a public server 4. On the other hand, the public server 4 stores a group of the image files in a file storage part 41, transmits the image file according to the access from a client device 5 on the client device 5 via the Internet 3 and displays it on the client device 5.