Workpiece Simulation - Siemens SINUMERIK 828D Function Manual

9.6

Workpiece simulation

Function
The actual part program is completely calculated in the tool simulation and the result is graphically displayed in
the user interface. The result of programming is verified without traversing the machine axes. Incorrectly
programmed machining steps are detected at an early stage and incorrect machining on the workpiece
prevented.
Simulation NCK
The simulation uses its own NCK instance (simulation NCK). Therefore, before a simulation is started, the real
NCK must be aligned to the simulation NCK. With this alignment, all active machine data are read out of the NCK
and read into the simulation NCK. The NCK and cycle machine data are included in the active machine data.
Compile cycles in simulation (only 840D sl)
Up to SW 4.4, no compile cycles are supported, from SW 4.4 and higher only selected compile cycles (CC) are
supported for the workpiece simulation. The machine data of the supported compile cycles are aligned once after
the control has powered-up. An alignment with "simulation start" does not take place!
Note
In part programs, CC-specific language commands and machine data of unsupported CCs
cannot be used (see also paragraph "CC-commands in the part program").
Special motion of supported CCs (OEM transformations) are - under certain circumstances -
incorrectly displayed.
CC-commands in the part program
Language commands in the part program of compile cycles that are not supported (OMA1 ... OMA5, OEMIPO1/2,
G810 ... G829, own procedures and functions) therefore result in an alarm message and cancellation of the
simulation without any individual handling.
Solution:Individually handle the missing CC-specific language elements in the part program ($P_SIM query).
Example:
Program code
N1 G01 X200 F500
IF (1==$P_SIM)
N5 X300
ELSE
N5 X300 OMA1=10
ENDIF
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
K1: Mode group, channel, program operation, reset response
Comment
; CC not active for simulation.
9.6 Workpiece simulation
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