The invention claimed is:1. A component mounting system that includes a component mounter in which multiple component supply units that supply components are detachably arranged, the system comprising:a loader configured to automatically exchange one component supply unit of the multiple component supply units between the loader and the component mounter;an instruction output section configured to output an exchange instruction of the component supply units, including an automatic exchange instruction to the loader, so as to be recognizable by an operator, based on an instruction list in which multiple attachment and detachment instructions are registered,in which a type of attachment and detachment, indicating the attachment or the detachment, are associated with identification information identifying the component supply unit targeted to be attached and detached, and positional information for the attachment and detachment in the component mounter;an acquisition section configured to acquire an attachment and detachment record that includes the identification information on the component supply unit, the positional information on the attachment and detachment, and the type of attachment and detachment when the component supply unit is attached and detached on the component mounter; anda processing section configured to determine whether the attachment and detachment of the component supply unit is performed according to the attachment and detachment instruction based on the attachment and detachment record acquired by the acquisition section and the instruction list, and when it is determined that the attachment and detachment is performed according to the attachment and detachment instruction, perform an update process to update the instruction list by deleting the corresponding attachment and detachment instruction.2. The component mounting system according to claim 1,wherein the processing section is configured to perform an handling process such that the component supply unit is reattached and redetached when it is determined that the attachment and detachment of the component supply unit is not performed according to the attachment and detachment instruction.3. The component mounting system according to claim 2,wherein the processing section is configured to perform an update process of the instruction list by additionally registering the attachment and detachment instruction for detaching the component supply unit and attaching the component supply unit to an appropriate position as the handling process when it is determined that the attachment of the component supply unit is not performed according to the attachment and detachment instruction, andthe instruction output section is configured to output a new exchange instruction when the instruction list is updated by the additional registration of the attachment and detachment instruction.4. The component mounting system according to claim 2,wherein the processing section is configured to search for the detached component supply unit as the handling process when it is determined that the detachment of the component supply unit is not performed according to the attachment and detachment instruction, and perform the update process of the instruction list by additionally registering the attachment and detachment instruction for detaching the component supply unit and attaching the component supply unit to an original position if the component supply unit is located, and perform a notification process to notify that fact if the component supply unit is not located, andthe instruction output section is configured to output a new exchange instruction when the update process of the instruction list is performed with the additional registration of the attachment and detachment instruction.
