公开(公告)号：US20200264577A1

公开(公告)日：2020-08-20

申请号：US16789427

申请日：2020-02-13

Applicant: Kabushiki Kaisha Yaskawa Denki

Inventor： Ayaka HASHIMOTO ,  Hirotaka NIIMI ,  Toshinobu KIRA ,  Wataru NOZAKI ,  Masaomi KUDO ,  Yu KATONO ,  Hiroshi OKAMOTO ,  Takeshi NAGATA ,  Takaaki SHOGAKI ,  Megumi YASUDA

IPC: G05B19/042 ,  G05B19/418

Abstract: Provided is a communication system, in which a first industrial machine and a second industrial machine are configured to communicate to/from each other, the communication system comprising circuitry configured to synchronize first time information updated by the first industrial machine and second time information updated by the second industrial machine with each other, wherein the second industrial machine is configured to: acquire state data on the second industrial machine; and transmit to the first industrial machine the second time information at a time when the state data is acquired and the state data.

公开(公告)号：US20200278662A1

公开(公告)日：2020-09-03

申请号：US16801178

申请日：2020-02-26

Applicant: Kabushiki Kaisha Yaskawa Denki

Inventor： Ayaka HASHIMOTO ,  Takeshi NAGATA ,  Hirotaka NIIMI ,  Toshinobu KIRA ,  Wataru NOZAKI ,  Masaomi KUDO ,  Yu KATONO ,  Hiroshi OKAMOTO ,  Takaaki SHOGAKI ,  Megumi YASUDA

IPC: G05B19/418

Abstract: A communication system comprising a first industrial machine and a second industrial machine, which are configured to communicate with each other, wherein the first industrial machine is configured to transmit a copy instruction to the second industrial machine, and wherein the second industrial machine is configured to: update data in a first storage area based on its own operation; copy the data in the first storage area to a second storage area when the copy instruction is received; and transmit the data in the second storage area to the first industrial machine.

公开(公告)号：US20200280460A1

公开(公告)日：2020-09-03

申请号：US16794232

申请日：2020-02-19

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Manabu FUJITA ,  Wataru NOZAKI ,  Isamu MATSUMURA ,  Junya HISAMATSU

IPC: H04L12/40

Abstract: A slave device includes a first connector, a second connector, a switch, and a communication circuit. The switch is alternatively connectable to the first connector or the second connector according to a connection way via which the slave device is connected to a master device and another slave device. The communication circuit is connected to the first connector and the switch. The communication circuit is configured to transmit and receive a first communication signal to and from the first connector, and is configured to transmit and receive a second communication signal to and from the switch.