Siemens Sinumerik 840D sl Programming Manual page 786

Programming cycles externally
16.1 Technology cycles
Param Param
No.
Mask intern
17
_PITA
18
_PITM
19
_RTAB
20
_PTABA
21
_GMODE
22
_DMODE
23
_AMODE
786
Explanation
Evaluation of thread pitch
0 = Compatibility mode
1 = Pitch in mm
2 = Pitch in threads per inch (TPI)
3 = Pitch in inches
4 = Pitch as MODULE
String as marker for pitch input (for the interface only)
String for thread table ("", "ISO", "BSW", "BSP", "UNC") (for the interface only)
String for selection from thread table (e.g. "M 10", "M 12", ...) (for the interface only)
Geometrical mode
UNITS: Reserved
TENS: Reserved
HUNDREDS: Machining/calculation of start point
0 = Compatibility mode
1 = Normal machining
Display mode
UNITS: Machining plane G17/18/19
0 = Compatibility, the plane effective before cycle call remains active
1 = G17 (only active in the cycle)
2 = G18 (only active in the cycle)
3 = G19 (only active in the cycle)
Alternative mode
UNITS: Thread length (_DP)
0 = Absolute
1 = Incremental
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
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