| 摘要 |
PURPOSE:To afford a margin in the processing of a host computer and make high-speed graphic display in a display station possible by storing preliminarily variable part control data and transmitting only process data required for a current displayed picture from the host computer. CONSTITUTION:A function key corresponding to the name or the number of a picture to be displayed is depressed on a CRT keyboard 13. The number code is transmitted to a request accepting means 15 through a color CRT controller 11, and the means 15 transmits the picture number to a fixed data display means 17. The means 17 takes out corresponding fixed part data from a fixed part data part 20 and requests the output to the color CRT controller 11, and the fixed part of a system diagram is displayed on a color CRT monitor 12. The means 15 uses a transmission control means 14 to transmit the picture number to a process data transmitting means 5 of a host computer 7 through a transmission controller 8, a transmission line 9, and a transmission controller 21. The host computer 7 reads in periodically various process variables from detectors 2, which are attached in respective places of a power plant 1, through a process input device 3 by a process input means 4. |
