This study proposes an interconnected smart wearable device and enables the state of the machine to be quickly fed back to the operator. First, the internal parameters are obtained through the communication protocol provided by the CNC machine tool controller manufacturer. In addition, the interconnection function of the personal smart wearable device is set according to the work rights and responsibilities. Then, the error codes are defined according to the manual. The error code generated by the abnormality of the machine is sent to the Raspberry Pi through the industrial personal computer. The database records information about abnormal events, including machine numbers, timestamps, and error codes. However, each operator's smart wearable device will receive different messages. The experimental results show that the connection and information sharing between the machine and the smart wearable device is successful. The interconnection function and proxy mechanism can reduce the processing time of machine exceptions. In future research work, more complete experiments and analyses will be carried out, and more data will be used to highlight the value and contribution of the intelligent system.