The Drive Object (DO) is the main component of the Drive functional model. Figure 2 shows the general architecture of the PROFIdrive Drive Object and its related PROFINET communication services. Main purpose of this companion specification is the functional model of a Drive Axis which is contained in the blue “Process Control Task” block of Figure 2. All information’s about the “Process Control Task” are available as parameters in the related “Parameter Data Base” and therefore accessible via PROFINET acyclic communication and the related “Parameter Manager”. As an option, the “Setpoint Values” and “Actual Values” used to control the “Process Control Task” by PROFINET cyclic data telegrams, are also part of the OPC UA Axis Information Model (see folder PNSignals in Figure 10).

Figure 2 – General Drive Object architecture [PI 3172 PDP]