| 摘要 |
<p>PROBLEM TO BE SOLVED: To efficiently prepare a program and a screen by simplifying input of a symbol in the control procedure program (ladder diagram or the like) of a PLC(programmable logic controller) or accessory information related with parts to be arranged on the screen to be displayed at a programmable display or the like. SOLUTION: A control procedure program is prepared on a ladder window by a ladder editor 32a, and a screen is prepared on the plotting window by a plotting editor 32b. For example, at the time of preparing the program, dada including an address of input and output equipment 4 related with a ladder symbol and a variable name (for example, SW1) corresponding to this are registered in a data file 33. At the time of preparing the screen, when the ladder symbol on the ladder window is dragged and dropped to the plotting window, the plotting editor 32b refers to the variable name copied to a memory part 34 by a copying function part 32c, and displays a mark (part) corresponding to this on the plotting window, and displays the variable name as accessory information on the mark.</p> |
