Machine control via synchronous communication

A machine control system comprising:

• a machine configured to execute a motion according to a machine command;
• and
• one or more servers configured to control the machine,
• wherein the one or more servers comprise control circuitry configured to:
• repeat an execution of a motion program to generate the machine command for the machine according to a control cycle;
• add first cycle information designating a first use timing to the machine command;
• transmit the machine command including the first cycle information to the machine via a communication network;
• and
• transmit cycle timing information identifying a cycle timing of the control cycle to the machine, and
• wherein the machine comprises machine circuitry configured to:
• generate a machine control cycle synchronized with the control cycle based on the cycle timing information
• repeat a local processing for controlling the machine according to the machine control cycle;
• receive the machine command from the one or more servers;
• store the received machine command;
• and
• call the stored machine command, based on the first cycle information added to the stored machine command, to use the machine command in the local processing corresponding to the first use timing.

A communication method comprising:

• repeating, by a first device, a first processing including a generation of first information;
• adding, the by first device, first cycle information to the first information, wherein the first cycle information designates a first use timing of the first information;
• transmitting the first information from the first device to a second device via a communication network;
• repeating, by the second device, a second processing including a generation of second information;
• adding, by the second device, second cycle information to the second information, wherein the second cycle information designates a second use timing of the second information;
• transmitting the second information from the second device to the first device via the communication network;
• storing, by the second device, the transmitted first information;
• calling, by the second device, the stored first information, based on the first cycle information added to the stored first information, to use the first information in the second processing corresponding to the first use timing;
• storing, by the first device, the transmitted second information;
• and
• calling, by the first device, the stored second information, based on the second cycle information added to the stored second information, to use the second information in the first processing corresponding to the second use timing.