Lenze PLC Designer PLC-Designer (R2-x) SoftMotion - Manual (Page 278)

L-force | PLC Designer - SoftMotion
SoftMotion programming examples
Drive control with the aid of the CNC editor
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DMS 5.2 EN 03/2011 TD17
13.5.2 Online decoding with the use of variables
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Tip!
See also the example project CNConline.pro provided with SoftMotion.
6. Creating the CNC program in the CNC editor:
– As in the previous example, we create a CNC program and use two global variables
g_x and g_y for it, e. g.:
– As compilation mode, however, this time we select "Generate program variable
during compilation", as we use variables in our program.
7. Drive Interface, PLC configuration:
– The drive structure corresponds to that of the previous example.
8. Creating the IEC program:
– As we have selected the other compilation mode this time, we have to carry out the
decoding and path preprocessing in the IEC program. As this process which is rather
runtime-consuming does not have to be effected in the interpolator cycle (at every
decoder call one path object is generated, which typically lasts for many interpolator
calls), it is often swapped out into a task with a lower priority that is called less
frequently:
VAR_GLOBAL
g_x: REAL:=100;
g_y: REAL:=50;
END_VAR