Identification number setting system, identification number setting method, and robot system

An identification number setting method for setting identification numbers different from each other in a first element component including a first storing section, coupled to a first branch communication line branching from a main line of a bus-type communication wire, and coupled to a power supply and a second element component including a second storing section, coupled to a second branch communication line branching from the main line, and coupled to the power supply to be capable of switching energization and disenergization,

• the identification number setting method comprising:
• a first step of writing a first identification number in the first storing section in a first state in which electric power is supplied to the first element component and electric power is not supplied to the second element component;
• and
• a second step of supplying electric power to the second element components to change the first state to a second state and writing a second identification number different from the first identification number in the second storing section after the writing of the first identification number.

A robot system comprising:

• a robot including a first element component including a first storing section, coupled to a first branch communication line branching from a main line of a bus-type communication wire, and coupled to a power supply and a second element component including a second storing section, coupled to a second branch communication line branching from the main line, and coupled to the power supply to be capable of switching energization and disenergization;
• and
• a control device coupled to the main line and configured to communicate with the first element component and the second element component, wherein
• the control device writes a first identification number in the first storing section in a first state in which electric power is supplied to the first element component and electric power is not supplied to the second element component and writes a second identification number different from the first identification number in the second storing section after the writing of the first identification number and in a second state in which electric power is supplied to the second element component.