Siemens SINUMERIK 840Di Function Manual page 1513

Part programs using M19 as a macro (e.g., DEFINE M19 AS SPOS = 0) or as a
subroutine, continue to remain executable. For the sake of compatibility with previous
controls, the internal processing of M19 (NCK positions the spindle) can be disabled as
shown in the following example:
MD22000 $MC_AUXFU_ASSIGN_GROUP[0] = 4
MD22010 $MC_AUXFU_ASSIGN_TYPE[0] = "M"
MD22020 $MC_AUXFU_ASSIGN_EXTENSION[0] = 0
MD22030 $MC_AUXFU_ASSIGN_VALUE[0] = 19
SD43240 and SD43250
The positioning data for M19 are stored in axis-specific setting data:
SD43240 $SA_M19_SPOS[n] (position)
and
SD43250 $SA_M19_SPOSMODE[n] (position approach mode).
End of positioning
The end of the positioning motion can be programmed using the following commands:
FINEA [Sn]
COARSEA [Sn]
IPOENDA [Sn]
Block change
Settable block change time
In addition to the existing programmable endofmotion criterion with FINEA, COARSEA,
IPOENDA, for singleaxis interpolation, a new endofmotion criterion can be programmed for
block change with IPOBRKA in the braking ramp (100-0%).
The program advances to the next block if the end-of-motion criteria for all spindles or axes
programmed in the current block, plus the block change criterion for path interpolation, are
fulfilled. This applies to both part-program and technology-cycle blocks.
For more detailed information about the settable block change time of "settable positioning
axes" for single-axis interpolation, please refer to:
References:
/FB2/ Description of Functions, Extended Functions; Positioning Axes (P2)
Spindles (S1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
End of motion on reaching "Exact stop fine" (DB31, ... DBX60.7)
End of motion on reaching "Exact stop coarse" (DB31, ... DBX60.6)
End of motion when "IPO stop" is reached
Detailed Description
2.1 Spindle modes
; Auxiliary functions group: 4
; Auxiliary functions type: "M
; Auxiliary functions
expansion: 0
; Auxiliary function value: 19
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