A feeder device that is configured to be equipped in a component mounting machine, is configured to feed out a carrier tape that is formed with cavity sections, that hold components, lined up in one row, and sequentially supply the components to a predetermined supply position, the device comprising: a splice portion detecting section that is provided at a detection position between a reel supporting section and the supply position and is configured to detect the splice portion that connects a tail end of a first carrier tape and a leading end of a second carrier tape with each other; a passing determination section that is configured to determine whether or not the splice portion is in a passing state in which, when a position at which the splice portion is fed out from the detection position by a predetermined length longer than a separation distance between the detection position and the supply position is referred to as a discharge position, the splice portion is positioned within a passing area from the detection position to the discharge position; a work defect determination section that is configured to determine a splicing work defect in a case where a suction abnormality state is determined in which the component mounting machine is not able to suck the component from the cavity section at the supply position and the splice portion is determined to be in the passing state; a communication connector for connecting a control section of the feeder device with a control device of a component mounting machine, wherein the suction abnormality state can be transmitted from the control device of the component mounting machine to the control section of the feeder device, and an abnormality display section that is configured to perform dedicated abnormality display in a case where the splicing work defect is determined. a splice portion detecting section that is provided at a detection position between a reel supporting section and the supply position and is configured to detect the splice portion that connects a tail end of a first carrier tape and a leading end of a second carrier tape with each other; a passing determination section that is configured to determine whether or not the splice portion is in a passing state in which, when a position at which the splice portion is fed out from the detection position by a predetermined length longer than a separation distance between the detection position and the supply position is referred to as a discharge position, the splice portion is positioned within a passing area from the detection position to the discharge position; a work defect determination section that is configured to determine a splicing work defect in a case where a suction abnormality state is determined in which the component mounting machine is not able to suck the component from the cavity section at the supply position and the splice portion is determined to be in the passing state; a communication connector for connecting a control section of the feeder device with a control device of a component mounting machine, wherein the suction abnormality state can be transmitted from the control device of the component mounting machine to the control section of the feeder device, and an abnormality display section that is configured to perform dedicated abnormality display in a case where the splicing work defect is determined.