| 摘要 |
<p>PURPOSE:To facilitate the alteration and correction of a piping diagram, and to simplify the structure of a control console panel itself and to reduce in size by using a graphic board as a digitizer and altering the coordinate meaning of a microcomputer by a program. CONSTITUTION:An operator brings a coordinate readout pen 6 into contact with the specified position of a valve and a pump shown in the piping diagram 4 of the graphic board 2. Consequently, the signal generated by the digitizer 3 is received by a coordinate decision device 5 and outputted to the microcomputer 7. The microcomputer 7 is stored previously with the position relation between coordinates and the meaning of opening and closing/start and stop states of the valve and pump, so the output signal of the coordinate decision device 5 is analyzed immediately. The analyzed result is displayed on a chathode-ray tube 8 together with the same shape with piping on the graphic board stored with the meaning indicated previously with the coordinate readout pen 6. Then the operator judges whether the operation is correct or not on the display.</p> |
