Cam description by interpolation point tables

In the ISG-MCE, interpolation point tables and table with changing LINE/POLY5 motion sections are supported as cams.

The number of interpolation points (= lines in the cam table) is understood to be equidistant interpolation points of the slave axis in the modulo range of the master axis. This is why the table does not contain any master positions either. When the cam is processed, the modulo range of the master axis is subdivided into "number of interpolation points" segments of equal size. The interpolation point entries for the slave axis as understood to be metric positions of the slave axis within the associated position interval of the master axis.

This form of cam description is exclusively suitable for use with closed scanning because, according to the definition, the slave position at the end of the cam is implicitly presupposed as being equal to the slave position at the start of the cam.

The first table above with precisely one slave position entry is therefore the simplest conceivable cam description in the form of a table. During processing, the slave would move to the entered slave position during the synchronization phase (ramp-in) and would stay there. In chapter 1.3.4.1 and 1.3.4.2

In tables containing LINE/POLY5 motion sections the entries don’t need to be equidistant. Because of this the first column contains always the master position, the second column always contains the slave position which marks the end of the motion section. The unit for master and slave position is 10^-4° or 10^-4mm. Chapter 1.3.5 describes the interpolation of tables with LINE/POLY5 motion sections.