Basic Definitions 04.97
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* ➯ master axis: channel 1
Program 20 ➯ axis B* ➯ master axis: channel 2
Program 30 ➯ axis C* ➯ master axis: channel 3
b) 2 axes in one program, 1 axis with its own program
Program 10 ➯ axis A* ➯ master axis
➯ axis C* ➯ slave axis
or
➯ axis A* ➯ slave axis
➯ axis C* ➯ master axis
Program 20 ➯ axis B* ➯ master axis: channel 2
c) 3 axes in one program
Program 10 ➯ axis A* ➯ master axis
➯ axis B* ➯ slave axis
➯ axis C* ➯ slave axis
or
➯ axis A* ➯ slave axis
➯ axis B* ➯ master axis
➯ axis C* ➯ slave axis
or
➯ axis A* ➯ slave axis
➯ axis B* ➯ slave axis
➯ axis C* ➯ master axis
channel 1
channel 1
channel 1
channel 1
channel 1
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Siemens AG 1997 All Rights Reserved 6ZB5 440-0VU02
WF 723 C (Programming Guide)
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