System for managing component mounting line

A system for managing a component mounting line configured from multiple component mounters arranged in a line along a conveyance path of a circuit board, the component mounters producing a component-mounted board by mounting a component on the circuit board, the system comprising:

• an automatic exchanging device configured to move along a guide rail on an exterior of the multiple component mounters arranged in a line and automatically exchange automatically exchangeable units of the component mounters;
• an operation monitoring device configured to monitor an operation state of the automatically exchangeable units of the component mounters and monitor whether it is necessary to exchange the automatically exchangeable units due to maintenance or a breakdown;
• and
• a management device configured to, when the operation monitoring device determines that exchange of one of the automatically exchangeable units of the component mounters is necessary due to maintenance or a breakdown, move the automatic exchanging device along the guide rail to a component mounter of the component mounters and cause the automatic exchanging device to perform automatic exchange of the one of the automatically exchangeable units of the component mounter with an exchange-use unit.