Output Suppression Of Spindle-Specific Auxiliary Functions - Siemens SINUMERIK 828D Function Manual

H2: Auxiliary function outputs to PLC
8.13 Block-search response
8.13.5

Output suppression of spindle-specific auxiliary functions

Function
In certain situations, such as a tool change, it may be necessary not to output the spindle-specific auxiliary
functions collected during the block search in action blocks, but to delay output, for example, until after a tool
change. The automatic output of the spindle-specific auxiliary functions after a block search may be suppressed
for this purpose. Output can then be performed manually later by overstoring or by an ASUB.
Parameterization
Suppression of the automatic output of the spindle-specific auxiliary functions after a block search is set via
machine data:
MD11450 $MN_SEARCH_RUN_MODE (behavior after a block search)
Bit Value Meaning
2 0 The output of the spindle-specific auxiliary functions is performed in the action blocks.
1 Output of the auxiliary functions is suppressed in the action blocks.
System variables
The spindle-specific auxiliary functions are always stored in the following system variables during block
searches, irrespective of the parameter assignment described above:
System variable
$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 in an AS, for
example, and output after the action blocks are output:
444
Description
Accumulated spindle speed
Value range: 0 ... Smax
Accumulated spindle direction of rotation
Value range: 3, 4, 5, -5, -19, 70
Accumulated spindle gear level M function
Value range: 40 ... 45
Accumulated spindle position
Value range: 0 ... MD30330 $MA_MODULO_RANGE
(size of the module range)
or
Accumulated traversing path
Value range: -100,000,000 ... 100,000,000
Accumulated position approach mode
Value range: 0 ... 5
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions