An apparatus integrating system such as a product shipping line includes a group of integrated apparatus each provided with a memory device for storing conditions of its operation, an input device through which conditions of operation for the group of apparatus can be set, a display device for displaying conditions and actual modes of operation of the apparatus group and control devices for controlling the apparatus group. Data are exchanged among the control devices of the apparatus through a communication device. Instead of providing a memory device to each apparatus, a master memory may be provided to only one or some of the apparatus or separately and away from the group of apparatus. The user can operate on the input device of any of the apparatus to set not only the conditions of operation of that apparatus but also the conditions of operation of the other apparatus through the communication device.