The following has been defined for instancing and calling up the PLCopen FB:
Notice
MCV_P1_PLATFORM operation criteria
Folgen
The generic MCV_Axis of the PLCopen axes are instanced and called up in the ISG-MCP. The relevant code is implemented in the MCV_P1_PLATFORM FB.
Each PLC application using function blocks of PLCopen specification Part 1 and 2, must call the only one instance of function block MCV_P1_PLATFORM in the project, before other function blocks for motion control are called. This ensures that one instance of the generic MCV_Axis FB is computed in each PLC cycle for each axis.
Application programmers must ensure instancing and calling up of all PLCopen FBs serving programming of the application (e.g. motion sequence) in one application program.
Before we call the function blocks for motion control the first time the HLI (interface to the MC) must be initialized, and the only one instance of MCV_PlatformBase in the PLC project must notify the successful initialization of MCP.
Figure 1-5: Application frame for motion applications
On initialization in FB MCV_P1_PLATFORM an AXIS_REF structure is assigned to each axis, available as elements of the globally defined g_array_axis_ref array.
