Spindle Functions After Block Search - Siemens SINUMERIK 828D Function Manual

9.7.2.3

Spindle functions after block search

Control system response and output
The behavior with regard to the spindle functions after ending the block search can be set via machine data:
MD11450 $MN_SEARCH_RUN_MODE, Bit 2
Bit Value Meaning
2 0 Output of spindle auxiliary functions (M3, M4, M5, M19, M70) in action blocks.
1 Output of the auxiliary functions is suppressed in the action blocks. The spindle
programmings that accumulated during the block search can be output at a later point
in time (e.g. via ASUB).
The program data for this is stored in the following system variables:
• $P_SEARCH_S
• $P_SEARCH_SDIR
• $P_SEARCH_SGEAR
• $P_SEARCH_SPOS
• $P_SEARCH_SPOSMODE
System variables
The spindle-specific auxiliary functions are always stored in the following system variables on block search,
irrespective of the programming described above:
System variables
$P_SEARCH_S[ n ]
$P_SEARCH_SDIR[ n ]
$P_SEARCH_SGEAR[ n ]
$P_SEARCH_SPOS[ n ]
$P_SEARCH_SPOSMODE[ n ]
For later output of the spindle-specific auxiliary functions, the system variables can be read, for example in an
ASUB, and output after output of the action blocks:
DB21, ... DBX32.6 == 1 (last action block active)
Note
The contents of the system variables $P_S, $P_DIR and $P_SGEAR may be lost after block
search due to synchronization operations.
Reference:
More detailed information on ASUB, block search, and action blocks is to be found in:
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
K1: Mode group, channel, program operation, reset response
Description
Collected spindle speed,
value range = { 0 ... Smax }
Collected spindle rotation direction,
value range = { 3, 4, 5, -5, -19, 70 }
Collected spindle gear stage M function,
value range = { 40 ... 45 }
Collected spindle position,
value range = { 0 ... MD30330 $MA_MODULO_RANGE }
Collected traverse path,
value range = { -100.000.000 ... 100.000.000 }
Collected position approach mode,
value range = { 0 ... 5 }
9.7 Block search
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