| 摘要 |
PURPOSE: To secure the control stability by eliminating the fear of the control abnormality with no execution of a sequence program as long as this program is incomplete. CONSTITUTION: A peripheral equipment 1 edits a sequence program to operate a programmable controller and is provided with a program editing part 2 which decides in an editing mode whether the edited sequence program can normally operate or not based on the type of an output flag 6 that shows the input of a conditional instruction, and a screen display part 3 which shows the result of decision of the part 2. |
