Siemens SINUMERIK 840D Function Manual page 249

Examples
Program code
POS[B]=CAC(20)
POS[B]=CACP(10)
POS[B]=CACN(10)
POS[B]=CDC(50)
POS[B]=CIC(-4)
POS[B]=CIC(35)
Special features
● Modulo rotary axis as indexing axis
On modulo rotary axes, the indexing positions are divided in factors of 360° and approached
directly.
● Indexing axis is between two indexing positions
The specified position instructions have the following effect in the AUTOMATIC mode.
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
Comment
Indexing axis B approaches the coded position (indexing) 20
in absolute mode. The direction of traversing depends on
the current actual position.
Indexing axis B approaches the coded position (index posi-
tion ) 10 in absolute mode with positive direction of rota-
tion (possible only for rotary axes).
Indexing axis B approaches the coded position (index posi-
tion ) 10 in absolute mode with negative direction of rota-
tion (possible only for rotary axes).
Indexing axis B approaches indexing position 50 directly
along the shortest path (possible only for rotary axes).
Indexing axis B traverses four indexing positions incremen-
tally from its current position. in a negative direction.
Indexing axis B traverses 35 indexing positions incremen-
tally from its present position in a positive direction.
POS[B]=CIC(1)
POS[B]=CIC(-1)
POS[B]=CIC(0)
The next higher indexing position is approached.
The next lower indexing position is approached.
The indexing axis is not traversed.
T1: Indexing axes
8.4 Programming
249