| 摘要 |
PURPOSE:To select a program automatically, speedily, and accurately by sending a program selection signal from a sequence controller to a program controller. CONSTITUTION:The sequence controller SC3 outputs a reset signal to a terminal D01, pulse signals for specifying the program selection signal to terminals D02 and D04, and an entry signal to a terminal D04 according to the program. The program controller PC1 receives those signals through a digital input circuit 12, etc., and sends them to a data processing 11 for counting. The result is converted into a binary code and a time signal is outputted to make a program selective. The SC3 receives data from the PC1, and when this coincides with the transmit data, the program with a preset number is selected with said entry signal. |
