| 摘要 |
PURPOSE:To make it possible to use a newly added M code without remodeling an already provided M function control circuit by providing an additional M code detecting means. CONSTITUTION:When an unused M code is used as the M code indicating a newly added function, this M code is stored in an additional M code memory 3. If the M code from an NC device 1 does not coincide with contents of the additional M code memory 3, a disaccord output is outputted from an additional M code detecting circuit 4 to switch interlocking changeover switches 5A-5C to the side opposite to that in Fig. Thus, an additional M function control circuit 6 is interposed between the NC device 1 and an M function control circuit 2, and the control due to the additional M code is possible. |
