| 摘要 |
PURPOSE:To grasp early the possibility of the abnormality of a measuring machine by accumulating successively the data of a collected slave station to a data accumulating part, adding said slave station to a recalling list for the slave station in which the response is not executed, and referring to a recalling list and executing the recalling when the calling of all slave stations is completed. CONSTITUTION:A color command part 5 accumulates successively the data of the slave station collected by a control device 1 at a data accumulating part 2, adds said slave station to a recalling list 6 for the slave station in which the response is not executed, and shifts to the calling of the next slave station. When the calling of all stations is completed, the control command part 5 refers to the recalling list 6, executes the recalling, and the normally inputted data are sent to a data accumulating part 2. When said station is not on a non- response list 7 and does not respond to the recalling, the control command part 5 calls said station once more, in case of the normal response, sends the data to the data accumulating part 2, and in case of the non-response, adds said station to the non-response list 7. Thus, the use of the line is made efficient and the collecting time of the data is shortened.
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