Siemens SINUMERIK 840C Installation Instructions Manual page 280

07.97
Bit 1 Bit 1 = 0 All zero point offsets are deselected with G53 (G54-G59 + ext. ZO).
Bit 1 = 1 G53 has same effect as @706, all zero offsets (G54-G59 + ext. ZO),
DRF and PRESET are deselected with G53 or with @706. Tool offset
(TO) is not deselected.
1st
settable zero offset
G54 G55
Coarse setting
Fine setting
1st programmable ZO (G58)
2nd programmable ZO (G59)
External ZO (from PLC)
DRF offset (with handwheel)
PRESET offset
Bit 0 Run the length compensation even for non-programmed axes (840C (T)): If a
modification of the tool length compensation (e.g. deselection via D0) produces a
traversing path in an axis that is not programmed in this block, traversing is carried
out nonetheless. If this bit is not set, traversing is carried out only if the axis has
been programmed.
Programming example for the 840C (T):
.
.
.
N5 G18 G0 X0
N10 G01 F200
L F
N20 Z30
.
.
.
If the bit is set, the length compensations are run in block N10 already to position
Z20.
If the bit is not set, the Z axis is not moved to position Z50 (Z30 + length
compensation 2) until block N20 is processed.
This function is active only for 2 axes in the mode group.
©
Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
6 NC Machine Data (NC MD), NC Setting Data (NS SD)
Bit 1 = 0
2nd 3rd 4th
G56 G57
Suppress with
G53
Suppress with
@706
L F
Z0
L F
D3 X10
6FC5197- AA50
6.6.1 General MD bits (general bits)
Bit 1 = 1
1st 2nd 3rd
settable zero offset
G54 G55 G56
Suppress with
@706 or G53
D3 ....Type 3 (turning tool)
Length 1 30
Length 2 20
4th
G57
6–95