HEIDENHAIN TNC 407 (243 020) Technical Manual - Manual (Page 342)

01.98
TNC 407/TNC 415/TNC 425 13 Hirth coupling 4-217
LBL 331
PLW
-
D28
PSW
EM
PLC Positioning to adjacent grid spacing
LBL 340 ;PLC positioning on grid spacing
CM 350 ;nearest grid spacing
PLW
=
D540 ;new nominal position
L W966 ;MP4220.3 read feed rate
= W566 ;feed rate axis 4 (MP4220.3)
L M1 ;M1 =1
S M2707 ;start PLC positioning axis 4
EM
LBL
350 ;calculate nearest grid spacing
LN M2208 ;programmable with MP4310.1
JPT 351
L D44 ;nominal grid value (ref value)
- D36 ;left grid point
PSW ;left difference
CM 390 ;absolute amount
L D44
- D40 ;right grid point
PSW ;right difference
CM 390 ;absolute amount
PLW
=
D0 ;right difference
PLW ;left difference
> D0 ;compare
JPT 353 ;load right grid point
JPF 354 ;load left grid point
LBL 351 ;determine direction with preset value from MP
L M3 ;traverse direction for PLC positioning
XO M2209 ;programmable with MP4310.1
JPF 353 ;load right grid point
JPT 354 ;load left grid point
EM
LBL
353 ;load right grid spacing for PLC positioning
PS D40 ;right nominal grid value
EM
LBL
354 ;load left grid spacing for PLC positioning
PS D36 ;left nominal grid value
EM