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

2.4.1

Main program (CC_RESU.MPF)

Meaning
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 modifications must be made in the
corresponding RESU-specific subroutine.
Fault message
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 (see Subsection
"Detailed description / Startup / Memory area of the RESU main program"), 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
RESU main program in SRAM
If the RESU main program is created in the part program memory (SRAM), the following
system alarm appears at the same time as the RESU alarm:
• Alarm "6500 NC memory limit reached"
Special functions: Retrace Support (TE7)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0
number
NC memory limit reached, RAM type
Detailed description
2.4 RESU-specific part programs
type
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