Components, controller, and industrial machine

A component assembled in an industrial machine together with a controller and other components, the component comprising:

• a unique identification information memory that stores, as unique identification information, identification information of the component, the identification information being providable to the controller;
• a component-side configuration history memory that stores configuration histories that each summarize, in terms of an acquisition timing, the stored unique identification information of the component, controller identification information of a past controller that was part of the industrial machine together with the component before the acquisition timing, and unique identification information of past components that were part of the industrial machine together with the component before the acquisition timing;
• and
• a component-side processor that detects whether there is a difference in terms of configuration between controller identification information and unique identification information included in a latest configuration history stored in the component-side configuration history memory and controller identification information and unique identification information included in a latest configuration history stored in the controller that controls the component, wherein
• the component-side processor causes, when a difference is detected, the component-side configuration history memory to store a new configuration history, separately from the configuration histories that have already been stored.

A controller that controls a component, the controller comprising:

• a controller identification information memory that stores identification information of the controller itself as controller identification information;
• a control-side processor that newly acquires unique identification information of the component from the component as unique identification information;
• and
• a control-side configuration history memory that stores configuration histories that each summarize, in terms of an acquisition timing, controller identification information stored in the controller identification information memory and unique identification information previously acquired by the control-side processor, wherein
• the control-side processor summarizes controller identification information stored in the controller identification information memory and the newly acquired unique identification information into a new configuration history, and causes the control-side configuration history memory to store the new configuration history, separately from the configuration histories that have already been stored.