Siemens SINUMERIK 840D sl Function Manual page 770

P2: Positioning axes
11.2 Own channel, positioning axis or concurrent positioning axis
Activation from PLC
For SINUMERIK 840D sl, the concurrent positioning axis is activated via FC 18 from the PLC.
● Feedrate
● Absolute dimensions (G90), incremental dimensions (G91)
The following functions are defined:
● Linear interpolation (G1)
● Feedrate in mm/min or degrees/min (G94)
● Exact stop (G9)
● Settable zero offsets currently selected are valid
Applications
Typical applications for concurrent positioning axes include:
● Tool magazines with manual loading and unloading during machining
● Tool magazines with tool preparation during machining
770
For feedrate = 0, the feedrate is determined from the following machine data:
MD32060 $MA_POS_AX_VELO (initial setting for positioning axis velocity)
Absolute dimensions along shortest path for rotary axes
(<rotary axis name>=DC(<value>))
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Extended Functions