| 摘要 |
PURPOSE:To form a sequence controller to which a timer function can be added freely, by providing a timing circuit and a mode changeover switch on a sequence memory. CONSTITUTION:To address terminals X0-Xn of a sequence memory 3, outputs x0-xn of inputting circuits 10-1n are applied, respectively. Also, outputs y0- ym from output terminals Y0-Ym of the memory 3 are applied to outputting circuits 20-2m, respectively, and execute a prescribed sequence control. Also, a timing circuit 4 whose timer operation is controlled by the output y0 of the output terminal Y0 of the memory 3, and a mode changeover switch 5 for changing a signal inputted to the address terminal X0 of the memory 3, to the output x0 of the inputting circuit 10 and an output (t) of the timing circuit 4 are provided, respectively. Accordingly, this controller can be switched to the timer function mode and the regular mode by a switch 5. In this way, it is possible to form a sequency controller to which the timer function can be added freely. |
