Resu Main Program Memory Area - Siemens SINUMERIK 840D sl Function Manual

TE7: Continue machining - retrace support
15.3 Startup
For RESU, the already existing machine data value (x) is adjusted as follows:
MD28105 $MC_MM_NUM_CC_HEAP_MEM = x + 50
Size of the block buffer
The size of the block buffer is adjusted via the machine data:
MD62571 $MC_RESU_RING_BUFFER_SIZE
Default setting:
MD62571 $MC_RESU_RING_BUFFER_SIZE = 1000
RESU portion of the total heap memory
The RESU portion of the total heap memory that can be used for compile cycles is set via the
machine data:
MD62572 $MC_RESU_SHARE_OF_CC_HEAP_MEM
Default setting:
MD62572 $MC_RESU_SHARE_OF_CC_HEAP_MEM = 100
Error messages
The block search buffer requires at least 2880 bytes (corresponding to 16 subroutine calls
with 180 bytes each). Otherwise, the following alarm will be generated during NC power-up:
Alarm 75600 "Channel 1 Retrace Support: Incorrect MD configuration, error no. 5"
If the block search buffer is not big enough during operation, the following alarm appears:
Alarm 75606 "Channel 1 retraceable contour shortened"
15.3.5

RESU main program memory area

Memory configuration
The storage location of the RESU main program CC_RESU.MPF can be set via the following
machine data (refer to Main program (CC_RESU.MPF) [Page 629]):
MD62574 $MC_RESU_SPECIAL_FEATURE_MASK (additional RESU features)
Bit
1
622
Value Meaning
0 The RESU main program is stored in the dynamic NC memory (default).
1 The RESU main program is stored in the static NC memory (default).
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Special Functions