Program Handling - Siemens SINUMERIK 840D sl Function Manual

V2: Preprocessing

18.2 Program handling

18.2 Program handling
Activation/Deactivation
Cycles are preprocessed on POWER ON if the following machine data is set:
MD10700 $MN_PREPROCESSING_LEVEL, bit 1 (program preprocessing level)
Bit
0
1
2
3
4
5
6
The areas occupied in the dynamic NC memory by the compilation are visible to the user.
Bit combinations are permissible.
684
Value Meaning
No preprocessing
0 Call description of cycles is not known by default.
Cycles, like normal subroutines, have to be stated as external before the cycle call.
This is a sensible setting when no cycles with call parameters are used.
1 During control power-up, the call description of the cycles is generated. All user
cycles (_N_CUS_DIR directory) and Siemens cycles (_N_CST_DIR directory) with
transfer parameters can be called up without external statement. Changes to the
cycle-call interface do not take effect until the next POWER ON.
The following machine data must be set:
MD18170 $MN_MM_NUM_MAX_FUNC_NAMES (number of auxiliary actions)
MD18180 $MN_MM_NUM_MAX_FUNC_PARAM (number of auxiliary parameters
for cycles)
1 During control power-up, all cycles are preprocessed into a compilation optimized for
processing. All user cycles (_N_CUS_DIR directory) and standard cycles
(_N_CST_DIR directory) are processed at high speed. Program changes to cycle
programs do not take effect until the next POWER ON.
1 During control power-up, the standard cycles in the _N_CST_DIR directory are
preprocessed in a compilation optimized for processing.
1 During control power-up, the user cycles in the _N_CUS_DIR directory are
preprocessed in a compilation optimized for processing.
1 Preprocessing of user cycles from the directory _N_CMA_DIR
1 Preprocessing the user cycles with the PREPRO command in the PROC instruction
line. Unmarked files of directories marked with bits 1-4 are not preprocessed.
If bit 0, then control of the preprocessing is carried out in accordance with the
specifications of bits 0-4.
0 The compilation is stored in the dynamic NC memory as long as free memory is still
available. If sufficient memory is not available, preprocessing is aborted.
The size of the dynamic NC memory is obtained with this machine data:
MD18351 $MN_MM_DRAM_FILE_MEM_SIZE.
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Special Functions