Function Call - Only 840D Sl; Oscillation (P5); Signals To Axis/Spindle (Db31 - Siemens SINUMERIK Series Function Manual

Z2: NC/PLC interface signals

18.11 Oscillation (P5)

18.10.2

Function call - only 840D sl

FC18
For SINUMERIK 840D sl, concurrent positioning axes can be started from the PLC using
FC18 (Function Call 18) of the PLC. The following parameters are passed to the function
call:
● Axis name/axis number
● End position
● Feedrate
● Absolute coordinates (G90), incremental coordinates (G91), absolute coordinates along
Since each axis is assigned to exactly one channel, the control can select the correct
channel from the axis name/axis number and start the concurrent positioning axis on this
channel.
Reference:
Function Manual Basic Functions; PLC Basic Program for SINUMERIK 840D sl (P3)
18.11 Oscillation (P5)
18.11.1

Signals to axis/spindle (DB31, ...)

VDI input signals
The PLC user program uses the following signals to control the oscillation process.
DB31, ...
DBX28.0
Edge evaluation: Yes
Signal state 1 or edge
change 0 → 1
Signal state 0 or edge
change 1 → 0
898
(for feedrate = 0, the feedrate is taken from MD32060 $MA_POS_AX_VELO)
The F value of FC18 is nottransferred to the axis-specific IS DB31, ...DBB78-81 ("F
function (feedrate) for positioning axis")
the shortest path for rotary axes (rotary axis name = DC(value))
External oscillation reversal
Signal(s) updated: Cyclic
Brake oscillation motion and move oscillation axis in the opposite direction.
Continue oscillation without interruption
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
Extended Functions