Equidistant Index Intervals; Features - Siemens SINUMERIK 840D sl Function Manual

T1: Indexing axes

16.5 Equidistant index intervals

System variable $AA_ACT_INDEX_AX_POS_NO
$AA_ACT_INDEX_AX_POS_NO: Number of the last indexing position reached or passed
Indexing positions
For axis type
Modulo rotary axis 1, ... n
Linear axis
Equidistant indexing positions
For axis type
Modulo rotary axis 1 ... m
Linear axis
16.5 Equidistant index intervals
16.5.1

Features

Distance between indexes
The index distance is determined for equidistant index intervals according to the following
formula:
826
Values Description
n = number of indexing positions (Page 818)
0, 1, 2, 3, ... 59, 60, 0
61
61
Values Description
m = denominator (counter)
... -3, -2, -1, 0, 1, 2,
3, ...
The actual position lies below the lowest indexing
position
The actual position lies above the highest indexing
position
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions