| 摘要 |
PURPOSE:To change the flow of numeric control program according to mechanical conditions through the use of output of a limit switch, by providing the control function of flow of programs and calling a number of numerical programs stored in the storage device. CONSTITUTION:CPU12 compares the numeral succeeding to the symbol H and the numeral fed from to input circuit 14, among the instructions sequentially read out from a storage device 13, and instructs the conditional jump to the symbol N when both are in coincidence. First, the instructions H01, L100 are produced at the sequence number N1, and the NC program P1' is executed through the jump to the sequence number N100. Further, when the program P1' is finished, the limit switch LS1 is off, the limit switch LS2 is on, and the sequence number N1 is transferred to N2. |
