| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate analysis operation of a control operation remarkably and to easily and quickly grasp relationship between contacts in the control operation. SOLUTION: This analyzing device for a control operation and its method are provided with a display device 11, a contact signal storage holding part 12 which monitors the respective contact states of an input contact from an installed device in a programmable controller PC, an output contact to the installed device and an internal contact of the controller PC and stores a contact state together with a change time each time the change takes place, a time chart displaying part 13 which shows time series contact states stored in it in a time chart on the screen of the device 11, a manual operation input device 14 which performs a command output corresponding to an input by a manual operation and a contact information converting part 15 which changes screen display so that the change time corresponding to the command can come to a prescribed position on the screen when a command to change the display range of the contact state in the middle of being displayed on the screen is issued.</p> |
