| 摘要 |
PURPOSE:To simplify the constitution of a program and to facilitate the easy correction, check, etc. of the program by displaying an instruction word for display and its corresponding data with correspondence to each other on a display part. CONSTITUTION:A programmable controller stores the programs containing the instruction words for display and comment data to the 1st and 2nd memory parts 1 and 2. The part 1 stores a program with instruction words for display corresponding to the instruction word for programmable controller and consisting of an input number, an output number, an internal memory number, etc. While the part 2 stores the comment data corresponding to the instruction for display and consisting of such item names as 'automatic', 'rise of water level', etc. Then the corresponding display instruction word is extracted out of the part 1 and displayed at a display part. At the same time, the item names 'automatic', etc. serving as the comment data corresponding to the display instruction word are retrieved out of the part 2 and displayed. |
