| 摘要 |
<p>PURPOSE:To easily prevent a display data from being flickered, by updating and displaying an arithmetic processing data at every necessary time, when the number of times of an arithmetic operation by a program controller has reached a set value. CONSTITUTION:A central arithmetic unit 4 of a program controller 1 operates a control command data to a manufacturing process line 2, based on a temporary storage value of a memory 6, in accordance with a program of a memory 5, outputs it to the line through an interface 7, and also, a display data signal is outputted to a CRT device 3. Also, the unit 4 increases the contents of an arithmetic operation frequency memory contained in the memory 6, by '1', executes no display processing until the number of times of execution reaches a set value 20, resets the arithmetic operation frequency memory in the memory, when the number of times of execution reaches 20 times, and updates and displays an arithmetic operation processing data.</p> |
