Siemens SINUMERIK 840D sl Programming Manual page 859

Approach from the nearest path point RMNBL
When REPOSA is interpreted, the repositioning block with RMNBL is not started again in full
after an interruption, but only the distance-to-go processed. The nearest path point of the
interrupted block is approached.
Status for the valid REPOS mode
The valid REPOS mode of the interrupted block can be read with synchronized actions and
variable $AC_ REPOS_PATH_MODE:
0
1
2
3
4
Approaching with a new tool
The following applies if you have stopped the program run due to tool breakage:
When the new D number is programmed, the machining program is continued with modified
tool offset values at the repositioning point.
Where tool offset values have been modified, it may not be possible to reapproach the
interruption point. In such cases, the point closest to the interruption point on the new contour
is approached (possibly modified by DISPR).
NC programming
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
Approach not defined
RMBBL: Approach to beginning
RMIBL: Approach to point of interruption
RMEBL: Approach to end of block
RMNBL: Approach to next path point of the interrupted block
Work preparation
3.14 Path traversing behavior
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