| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that high speed symbol input is required in a field of ladder programming for executing a programmable controller and an operator should memorize shortcut key allocation determined in each symbol. SOLUTION: In order to solve the problem, in programming software which inputs the ladder program for executing the programmable controller, cursor position information is newly added to correspondence between a shortcut key and a symbol to reduce the sorts of shortcut keys corresponding to the sorts of symbols and to improve the operability and input speed of the ladder programming. COPYRIGHT: (C)2009,JPO&INPIT
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