Main Program (Cc_Resu.mpf) - Siemens SINUMERIK 840D sl Function Manual

15.5.2

Main program (CC_RESU.MPF)

Function
In addition to the calls for the RESU-specific subroutines, the RESU main program
"CC_RESU.MPF" contains the traversing blocks generated from the traversing blocks logged
in the block buffer for reverse/forward travel along the contour. The program is always
regenerated by the RESU function if, once the part program has been interrupted, the status
of the following interface signal changes:
DB21, ... DBX0.1 (Reverse / Forward)
Note
CC_RESU.MPF must not be changed. User-specific adjustments are to be made in the
corresponding RESU-specific subroutines.
Error messages
By default, RESU generates traversing blocks for the entire retraceable contour range logged
in the block buffer. If there is not enough memory for all traversing blocks to be generated in
the parameterized memory area of the RESU main program (refer to RESU main program
memory area [Page 622]), RESU reduces the number of generated traversing blocks.
The lacking memory and/or reduction in the number of the generated traversing blocks is
indicated by an alarm:
RESU alarm 75608 "Channel
If the RESU main program is created in the static user memory, the following system alarm
appears at the same time as the RESU alarm:
Alarm 6500 "NC memory full"
Note
If the number of traversing blocks generated is reduced due to insufficient memory, the entire
retraceable contour can still be retraced for retrace support. To do this, proceed as follows:
• Reverse travel up to the end of the RESU main program
• Two-time change of the interface signal:
DB21, ... DBX0.1 (Reverse/Forward)
Using the current position as a new interruption point enables RESU to generate a new
RESU main program.
Subsequently, travel is possible as far as the end of the retraceable contour range or, if the
limits have changed, as far as the starting point of the last traversing block that can be
generated.
The procedure described can be repeated as many times as required both for reverse and
forward travel.
Special Functions
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
TE7: Continue machining - retrace support
number
NC memory limit reached, RAM type
15.5 RESU-specific part programs
type
"
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