Lenze PLC Designer PLC-Designer (R2-x) SoftMotion - Manual (Page 17)

DMS 5.2 EN 03/2011 TD17
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L-force | PLC Designer - SoftMotion
The SoftMotion drive interface
3 The SoftMotion drive interface
The Softmotion Drive Interface is a standardised interface which offers the programmer
the possibility of integrating the abstract image of a drive into the IEC program,
configuring it there, and addressing it. It automatically provides for the updating and
transmission of the data required for the control of the drive hardware. Like this drives
cannot only be easily replaced and IEC program reused, also the user is saved the
difficulties and trouble of the drive connection.
The Drive Interface works with the following components:
 The »PLC Designer« control configurator: Here the structure of the drives to be
operated is to be mapped and parameterised on the basis of a corresponding
configuration file. This structure is then made accessible to the application (IEC
program) by means of the Drive-Interface libraries via implicitly generated and
assigned (system) variables.
 The internal SM_DriveBasic.lib library provides IEC data structures and global variables
which represent the drives, axis groups, and BusInterfaces shown in the control
configurator.
 The drive element, i.e. the specific library Drive.lib (e.g.
LenzeCANdrive.lib) that is to be supplied by the manufacturer of the control system for
the drives and the bus system used offers special functions which are required for the
data exchange between the structures and the corresponding hardware (see chapter
[3.3]
( 48)
).