HEIDENHAIN TNC 407 (243 020) Technical Manual - Manual (Page 343)

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TNC 407/TNC 415/TNC 425 13 Hirth coupling 01.98
LBL 360 ;actual axis in grid spacing
PS K0 ;target address
PS K2 ;REF value
CM 9041 ;upload coordinates
L D36 ;coordinate left grid point (ref value)
- D12 ;current ref position
PSW
CM
390 ;absolute amount
PL D0
L D40 ;right grid point (ref value)
- D12 ;current ref position
PSW ;load to data stack
CM 390 ;absolute amount
PLW ;distance to right grid point
< D776 positioning window from MP4210.2 for Hirth positioning
O[
L
D0 ;distance to left grid point
< D776
]
=
M2 ;axis in grid position
EM
LBL
370 ;check, nominal value = grid spacing
PS K + 0 ;target address
PS K + 4 ;distance to go
CM 9041 ;upload coordinates
PS D12 ;save distance to go to stack
PS K + 8 ;;target address
PS K + 3 ;trailing error
CM 9041 ;upload coordinates
PS K + 0 ;target address
PS K + 2 ;ref value
CM 9041 ;calculate new nominal value
PLW ;distance to go
+ D12 ;ref value axis
+ D20 ;trailing error
MOD D28 ;Hirth grid
PSW ;enter data in stack memory for absolute amount
CM 390 ;absolute amount
PLW ;read absolute amount
= D0
L D28 ;Hirth grid axis 4
- D0 ;absolute amount
= D4
L D0
= D4
JPT 371
L D0
= D4
EM