Technical data

Technology functions
CPU 317T: Technology Functions
6-160 A5E00251798-03
MC_GearInSuperImposed - Example of "Relative/absolute superimposing
synchronism"
The signal profile in the example below demonstrates the differences between
relative and absolute superimposing synchronism. In order to keep the example as
simple as possible, we have excluded base synchronism from the signal profile
shown.
Phase 1 - relative superimposing synchronism
At the start of the signal profile shown, the leading axis (Axis_1) and the following
axis (Axis_2) have the same start position. A positive edge at Exe_1 starts relative
superimposing synchronism. After a short delay, InGear_1 reports that relative
superimposing synchronism is reached.
The signal profile highlighted in orange color (phase 1) shows the superimposing
slave position (Axis_2). The default start position of the superimposing slave
position is 0.
Relative synchronism is established between the master position (Axis_1) and the
superimposing slave position (Axis_2).
Phase 2 - absolute superimposing synchronism
Exe_2 cancels current relative superimposing synchronism and starts absolute
superimposing synchronism. After a short delay, InGear_2 reports that absolute
superimposing synchronism is reached.
The signal profile highlighted in orange color (phase 2) shows the superimposing
slave position (Axis_2). Absolute synchronism is established between the master
position (Axis_1) and the superimposing slave position (Axis_2). The reference to
the original superimposing slave position is retained. Hence, the offset between the
superimposing slave position and the slave position is also retained.