Siemens SINUMERIK 840D sl Function Manual page 820

T1: Indexing axes
16.3 Commissioning
MD10940 $MN_INDEX_AX_MODE, bit 0 = <value>
Bit
0
The following example will serve as explanation:
Bit 0 = 1 and axis below indexing position (but outside "exact stop fine" window).
Although the system variable $AA_ACT_INDEX_AX_POS_NO indicates indexing position 2,
with the "Traverse to next position" command, indexing position 3 is not approached, but first
820
<Value> Meaning
0 The actual indexing position, indicated in system variable $AA_ACT_IN‐
DEX_AX_POS_NO, changes when reaching/passing the exact stop window fine
(MD36010 $MA_STOP_LIMIT_FINE) of the next indexing position in the traversing
direction.
1 The actual indexing position indicated in system variable $AA_ACT_IN‐
DEX_AX_POS_NO changes when reaching/passing half the traversing distance to
the next indexing position in the traversing direction.
①
Traversing range of the indexing axis (linear axes or rotary modulo axis) with indexing
positions and exact stop windows fine
②
Traversing direction-dependent indexing position indicated in the system variable
$AA_ACT_INDEX_AX_POS_NO
③
Traversing range of the indexing axis (linear axes or rotary modulo axis) with indexing
positions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions