| 摘要 |
PROBLEM TO BE SOLVED: To reduce a processing load and a communication load of a controller related to process data transfer to each display device.SOLUTION: Each HCI device 10 and a controller 20 have broadcast memories 11 and 23, control LAN communication function parts 14 and 21. Due to them, data exchange of an existing common memory system is achieved. The controller 40 transfers each process data stored in a user memory 22 to the broadcast memory 23. Thereby, each process data is stored in the broadcast memory 11 of each HCI device 10 by the common memory system, and the process data corresponding to a screen being displayed on the HCI device 10 is acquired from the memory and used for screen display.SELECTED DRAWING: Figure 1 |
