Channel Structure - Siemens WF 723 C Programming Manual

Basic Definitions
2.2.1

Channel structure

In principle, the WF 723 C possesses 3 channels, in accordance with its 3 axes. Therefore, it
is possible to have all axes execute their own traversing programs simultaneously. for this
purpose, however, the traversing program must only contain information for the related axis.
As all axes are treated as equivalent, all axes are master axes.
If in one traversing program the information of mor than one axis is formulated, this information
belongs to a channel. Coordination in the form of program preselection and start is always
carried out by the master axis. The other axes appearing in the traversing program are slave
axes.
Example:
a) Each axis with its own program
Program 10 axis A*
Program 20 axis B*
Program 30 axis C*
b) 2 axes in one program, 1 axis with its own program
Program 10 axis A*
axis C*
or
axis A*
axis C*
Program 20 axis B*
c) 3 axes in one program
Program 10 axis A*
axis B*
axis C*
or
axis A*
axis B*
axis C*
or
axis A*
axis B*
axis C*
2 – 2
master axis: channel 1
master axis: channel 2
master axis: channel 3
master axis
channel 1
slave axis
slave axis
channel 1
master axis
master axis: channel 2
master axis
channel 1
slave axis
slave axis
slave axis
channel 1
master axis
slave axis
slave axis
channel 1
slave axis
master axis
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Siemens AG 1997 All Rights Reserved
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WF 723 C (Programming Guide)