A multi-axis servo control system includes a plurality of motors and a plurality of drive control apparatuses. The drive control apparatuses are connected to each other through an external field bus. Each drive control apparatus includes a control unit and a plurality of drive units. The drive units are connected to the control unit in series by a plurality of local buses to form a series-connected communication loop of sequentially transmitting data. Each drive unit controls at least one of the motors. The control unit receives multi-axis position commands through the external field bus, and the drive units correspondingly receive multi-axis commands through the local buses so as to control the motors in a decentralization manner.

The present invention relates to multi-limb actuated kinematics (1) having a plurality of drive units (11-16) connected to one another as a serial kinematic chain, the drive units (11-16) respectively having a control unit (11b, 12b, 16b), which are designed to operate at least one drive (11c, 12c, 16c) of the drive unit (11-16) to carry out the movement of the drive unit (11-16), the control units (11b, 12b, 16b) of the drive units (11-16) being connected to one another by a first data line (A.sub.10, A.sub.11, A.sub.12, A.sub.13, A.sub.16, A.sub.17) such that they transmit signals and being designed to receive at least data for operating the drive (11c, 12c, 16c) via the first data line (A.sub.10, A.sub.11, A.sub.12, A.sub.13, A.sub.16, A.sub.17). The multi-limb actuated kinematics (1) are characterised in that the control units (11b, 12b, 16b) of the drive units (11-16) are further connected to one another by a second data line (B.sub.10, B.sub.11, B.sub.12, B.sub.13, B.sub.16, B.sub.17, B.sub.19) such that they transmit signals and are designed to forward the data of the second data line (B.sub.10, B.sub.11, B.sub.12, B.sub.13, B.sub.16, B.sub.17, B.sub.19).

A multi-axis servo control system includes a plurality of motors and a plurality of drive control apparatuses. The drive control apparatuses are connected to each other through an external field bus. Each drive control apparatus includes a control unit and a plurality of drive units. The drive units are connected to the control unit in series by a plurality of local buses to form a series-connected communication loop of sequentially transmitting data. Each drive unit controls at least one of the motors. The control unit receives multi-axis position commands through the external field bus, and the drive units correspondingly receive multi-axis commands through the local buses so as to control the motors in a decentralization manner.