Program Coordination - Siemens SINUMERIK 840D sl Programming Manual

4. Program loop with condition at start of loop WHILE
The WHILE program loop is executed for as long as the condition is fulfilled.
WHILE expression
NC blocks
ENDWHILE
5. Program loop with condition at end of loop REPEAT
The REPEAT loop is executed once and repeated continuously until the condition is fulfilled.
REPEAT
NC blocks
UNTIL (expression)
1.13

Program coordination

1.13
Function
Channels
A channel can process its own program independently of other channels. It can control the
axes and spindles temporarily assigned to it via the program.
Two or more channels can be set up for the control during startup.
Program coordination
If several channels are involved in the machining of a workpiece it may be necessary to
synchronize the programs.
There are special statements (commands) for this program coordination. Each statement is
programmed separately in a block.
Note
Program coordination is also possible in its own channels.
Job planning
Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
Flexible NC programming
1.13 Program coordination
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