公开(公告)号：US20210333079A1

公开(公告)日：2021-10-28

申请号：US17236061

申请日：2021-04-21

Applicant: MITUTOYO CORPORATION

Inventor： Takuma MIZUNAGA

IPC: G01B3/18 ,  G06F13/42 ,  H04L29/08

Abstract: ID numbers of connected multiple modules are easily automatically set.
Each of the multiple modules includes an ID number information holding unit that holds its own ID number information, a first command generation unit that generates a first command for notifying its rear stage of its own ID number information, a first command output unit that outputs the first command from a rear-stage output port, a second command generation unit that generates a second command for notifying its front stage of its own ID number information and ID number information on its rear-stage modules, a second command output unit that outputs the second command from a front-stage output port, and an ID number information update unit that sets, when the first command is received from a front-stage module, new ID number obtained by adding “1” to the ID number of the front-stage module contained in the received first command as its own ID number information in the ID number information holding unit. Each of the multiple modules outputs the first command and second commands for a predetermined period of time to assign a different ID number to each of the multiple modules connected to a network apparatus.