Siemens SINUMERIK 840D Function Manual page 537

Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
Bit Meaning
0 Reserved.
1 Reserved.
2 Reserved.
3 The effect of NC/PLC interface signal
DB31, ... DBX1.3 (axis/spindle disable)
on the following axis/spindle can be set via bit 3:
Bit 3 = 0 DB31, ... DBX1.3 has no effect on the following axis/
spindle. The state of the following axis/spindle with ref‐
erence to the axis/spindle disable is derived solely from
the state of the leading axes/spindles.
Bit 3 = 1 DB31, ... DBX1.3 has an effect on the following axis/
spindle. The state of the leading axes/spindles with ref‐
erence to the axis/spindle disable is not imposed on the
following axis/spindle.
Note:
If bit 3 = 1, the axis/spindle disable state of the following axis/spindle
only has an effect if the program test or SERUPRO states are not
active (see also bit 5).
4 Bit 4 is used to define the enable for the dependent motion compo‐
nents when the NC/PLC interface signal DB31, ... DBX1.3 (axis/
spindle disable) has an effect on the following axis/spindle:
Bit 4 = 0 Dependent motion components of the leading axes/
spindles become effective irrespective of the state of
the axis/spindle disable of the relevant leading axis/
spindle.
Bit 4 = 1 Dependent motion components of the leading axes/
spindles only become effective if the state of the axis/
spindle disable of the leading axis/spindle matches that
of the axis/spindle disable of the following axis/spindle.
Otherwise, the components are suppressed.
Note:
Bit 4 is only of significance if bit 3 is set, i.e. if the NC/PLC interface
signal DB31, ... DBX1.3 (axis/spindle disable) has an effect on the
following axis/spindle (see bits 3 and 5).
5 The effect of NC/PLC interface signal
DB21, ... DBX25.7 (program test selected) or
DB21, ... DBX1.7 (activate program test)
on the following axis/spindle can be set via bit 5:
Bit 5 = 0 DB21, ... DBX25.7 or DB21, ... DBX1.7 has no effect on
the following axis/spindle. The state of the following ax‐
is/spindle with reference to the axis/spindle disable is
derived solely from the state of the leading axes/spin‐
dles.
Bit 5 = 1 If the "program test" state is active for an axis of the
coupling module, then for the following axis/spindle, its
own state is active regarding the axis/spindle disable.
The state of the leading axes/spindles with reference to
M3: Coupled axes
14.5 Generic coupling
537