Abstract: The invention provides a computer system for realtime control of machines. The computer system continually switches between a realtime programs EP providing control of peripheral devices A1, An, including control and/or regulation, and other programs within the realtime clock periods. The computer system has communications system KS and a a control system SS connected to the peripheral devices A1, An, particularly motor driver devices, over the communications system KS. A realtime clock signal T is generated from an independent cyclic communications clock T2 of the communications system KS, which has a communications processor KP that operates in realtime. When the control processor SP is remote from the communications processor KP, the realtime clock T may be regenerated an incoming bus clock signal B by a counter Z having upper and lower thresholds K2 and K1.

Abstract: The system and method of the present invention is to drive a slave axis (S_A) with a value which indicates to said slave axis that the guide axis (L_A) has already rotated further than is actually the case. This can be achieved by adding a correction angle (?corr) to the measured angle (?L—meas) of the guide axis. In order to configure the virtual onward rotation in such a way that a lag error of the slave axis is just compensated as a result, guide axis angles (?L—meas) are increased by respective correction angles (?corr) which are proportional to the angular velocity (?L) of the guide axis and weighted with the data propagation time (TT) of the position measured value (?L—meas) of the guide axis and the delay (TR) of the position control system of the slave axis, said correction angles (?corr) preferably being dimensioned in accordance with ?corr=?L*(TT+TR).

Abstract: The invention relates to a drive system (1) which has an electrical machine (3) and a belt drive (2), with the belt drive (2) having an input drive end (20) and an output drive end (22), in which case the input drive end (20) can be driven by means of the electrical machine (3), and in which case at least one electric current in the electrical machine (3) can be measured by means of a current measurement device (12). According to the invention, a means is provided for defect identification (13) for the belt drive (3), with the means for defect identification (13) being provided at least for comparison of at least one actual value (51) with at least one nominal value (52), and with the actual value (51) and the nominal value (52) being a variable which is dependent on the electric current in the electrical machine (3). Defect identification of a belt drive (2) can thus be achieved in a simple manner.

Abstract: Monitoring procedure for a control (2) of an injection-molding process, actual values (T, p, n, v) of the injection-molding process being acquired and fed to a computer (16), the actual values (T, p, n, v) being acquired by the control (2) and transmitted to the computer (16).

Abstract: The invention provides a computer system for realtime control of machines. The computer system continually switches between a realtime programs EP providing control of peripheral devices A1, An, including control and/or regulation, and other programs within the realtime clock periods. The computer system has communications system KS and a a control system SS connected to the peripheral devices A1, An, particularly motor driver devices, over the communications system KS. A realtime clock signal T is generated from an independent cyclic communications clock T2 of the communications system KS, which has a communications processor KP that operates in realtime. When the control processor SP is remote from the communications processor KP, the realtime clock T may be regenerated an incoming bus clock signal B by a counter Z having upper and lower thresholds K2 and K1.

Abstract: The system and method of the present invention is to drive a slave axis (S_A) with a value which indicates to said slave axis that the guide axis (L_A) has already rotated further than is actually the case. This can be achieved by adding a correction angle (&phgr;corr) to the measured angle (&phgr;L—meas) of the guide axis. In order to configure the virtual onward rotation in such a way that a lag error of the slave axis is just compensated as a result, guide axis angles (&phgr;L—meas) are increased by respective correction angles (&phgr;corr) which are proportional to the angular velocity (&phgr;L) of the guide axis and weighted with the data propagation time (TT) of the position measured value (&phgr;L—meas) of the guide axis and the delay (TR) of the position control system of the slave axis, said correction angles (&phgr;corr) preferably being dimensioned in accordance with &phgr;corr=&ohgr;L*(TT+TR).

Abstract: A one-dimensional, actual-value-specific path parameter F.sub.I (t) is derived from a motional function F.sub.B (t) to trigger switching functions related to position during the movement along a trajectory path of a numerically controlled system, for example a robot or a machine tool. This allows triggering of a switching operation such as switching on a welding or bonding tool with high precision at the actual position of the tool.