| 摘要 |
<p>PURPOSE:To shorten the processing time, and also, to facilitate an operator's confirmation by checking whether a state variation message screen is being displayed or not, erasing a recovered state variation from the screen, and also, adding a function for bringing a sorting part to decision processing. CONSTITUTION:A state variation detecting part 1 detects a state variation signal 3 from a process, and stocks that which has been encoded to a state variation point code by which a display side 3 can output a message, in a waiting table 5 in order of the detection. The display side 3 decides by a deciding part 7 whether a message screen is being displayed on a CRT 6 or not, and if said screen is being displayed, a black line which has been erased from the screen is filled up by a confirmed factor which a confirming operation corresponding part 8 has received in the previous state and a recovered state variation point code 9 which the state variation detecting part 1 has received. In case of executing the upward shifting display by a page unit, an additional display is executed to the lowest line 1, and a movement of a message is decreased.</p> |
