Communication method, communication device, and communication system

A communication method for a communication device including:

• a communication control portion configured to perform communication control;
• a transmission portion configured to transmit a message packet;
• and
• a reception portion configured to receive the message packet, the communication method comprising:
• receiving a simple message packet in which information of at least part of third information is omitted among first information indicating a type of processing to be executed by a target device identified as a transmission destination device for the message packet, second information for specifying the target device, and the third information indicating details of the processing.

A communication device comprising:

• a communication control portion configured to perform communication control;
• a reception portion configured to receive a simple message packet in which information of at least part of third information is omitted among first information indicating a type of processing to be executed by a target device identified as a transmission destination device for the message packet, second information for specifying the target device, and the third information indicating details of the processing;
• and
• a control portion configured to acquire the information of the part from a storage portion, and perform writing or reading based on the first information, the second information, and the third information on the storage portion.

A communication system including a plurality of communication devices, each communication device comprising:

• a communication control portion configured to perform communication control;
• a transmission portion configured to transmit a message packet;
• and
• a reception portion configured to receive the message packet,
• wherein the communication control portion transmits a simple message packet in which information of at least part of third information is omitted among first information indicating a type of processing to be executed by a target device identified as a transmission destination device for the message packet, second information for specifying the target device, and the third information indicating details of the processing.