A twine retaining device for a baler includes a retaining disk, which can rotate about a shaft, and a retaining plate, which jointly delimit a retaining gap. The second substrate includes a heat conductor that is thermally connected to an element to be mounted on the upper surface of the second substrate, the heat conductor configured to thermally extend to the cut portion of the first substrate. For these call signaling messages, a mobile dialing group ID is determined based on the calling party address in the mobile call signaling messages if the mobile call signaling messages contain calling party addresses. Wherein, the data processing units process the processing instruction data from the memory device such that the barrier provides for the data processing units to observe a configuration sequence of the subconfiguration data. In this case, the electrical circuit can be effectively cooled by refrigerant in the motor housing. A driving circuit chip is also provided.