| 摘要 |
PURPOSE:To attain a highly efficient operation of a numerical control system by providing an input/output device which is connected to a specific one of numerical controllers via a prescribed interface and a transmission circuit which sets data to each numerical controller and registers working programs together with display of these programs. CONSTITUTION:The data and commands equivalent to six numerical controllers NC which are supplied from a tape reader 27 as well as an MDI/CRT 26 connected to a master NC20 are discriminated. While the data and commands of slave NC21-25 are converted into the serial ones and sent to a transmission line L. The serial data transferred successively are decided by the CN21-25 according to flag bits respectively. Then only own data block is converted into the parallel data and fetched by a memory. While other data blocks are sent again to the line L in the form of the serial data as they are. The data to be displayed on the MDI/CRT 26 such as the alarm messages issued from the NC21-25 are sent to the line L by the prescribed interruption timing that is controlled by a computer.
|
