20Project Design and Unit Description5. Project Design and Device Description with GSDML FileA GSDML file is specified as technical manual for PROFINET (see [4]). KEB provides such a technical manualfile for the PROFINET slaves. This file is in most cases necessary for a PROFINET configuring tool. The actualversion of the KEB F5 PROFINET GSDML file contains no object dictionary and therefore it is not frequencyinverter unit-type dependent.At PROFINET all slaves contain slots and these slots have one or more subslots. Module/submodule combi-nations can be plugged into these slots/subslot combinations. The project design in case of the F5 PROFINEToperator applies as follows:Slot0 (Slot0) Is always available and can not be changed. Acyclic parameter accesses (among otherthings) are processed via this slot.Slot1 (Slot1) Process input data: only an input module with• a submodule for 8 byte process input data (4x16bit inputs) or• a submodule for 16 byte process input data (8x16bit inputs) can be plugged into thisslotSlot2 (Slot2) Process output data: only an output module with• a submodule for 8 byte process output data (4x16bit outputs) or• a submodule for 16 byte process output data (8x16bit outputs) can be plugged intothis slotSlot3 (Slot3), new from SW V2.8:This slot is necessary in order that a standard Siemens PLC with PROFINET controller allows the acyclic parameteraccess to PROFIDRIVE-profile to this unit. This functionality is already available in slot0, but is duplicated in slot3 (see reasons above). The module that can be plugged into this slot and allows the acyclic communication toPROFIDRIVE Base Mode Parameter Access is named PROFIDRIVE_PAP (ProfiDrive Parameter Access Point).Slot 0 Slot 1 Slot 2 Slot 3fixed function Process input Process output fixed functionacyclic data acyclic dataAPI - 0 API = 3A00h