Siemens SINUMERIK 840D Function Manual page 649

Feedback
Once the incremental procedure takes effect, a feedback is sent to the PLC:
● Machine axes:
– DB31, ... DBX65.0 - 5 (active machine function "INC1" to "INCvar")
● Geometry axes:
– DB21, ... DBX41.0 - 5 (geometry axis 1: Active machine function "INC1" to "INCvar")
– DB21, ... DBX47.0 - 5 (geometry axis 2: Active machine function "INC1" to "INCvar")
– DB21, ... DBX53.0 - 5 (geometry axis 3: Active machine function "INC1" to "INCvar")
● Orientation axes:
– DB21, ... DBX333.0 - 5 (orientation axis 1: Active machine function "INC1" to "INCvar")
– DB21, ... DBX337.0 - 5 (orientation axis 2: Active machine function "INC1" to "INCvar")
– DB21, ... DBX341.0 - 5 (orientation axis 3: Active machine function "INC1" to "INCvar")
Travel command plus/minus
Once a traversing request for an axis is pending, the interface signal "Travel command minus"
or "Travel command plus" is output to the PLC depending on the direction of movement:
● Machine axes:
– DB31, ... DBX64.6 (travel command "minus") or
– DB31, ... DBX64.7 (travel command "plus")
● Geometry axis 1:
– DB21, ... DBX40.6 (geometry axis 1: Travel command "minus") or
– DB21, ... DBX40.7 (geometry axis 1: Travel command "plus")
● Geometry axis 2:
– DB21, ... DBX46.6 (geometry axis 2: Travel command "minus") or
– DB21, ... DBX46.7 (geometry axis 2: Travel command "plus")
● Geometry axis 3:
– DB21, ... DBX52.6 (geometry axis 3: Travel command "minus") or
– DB21, ... DBX52.7 (geometry axis 3: Travel command "plus")
● Orientation axis 1:
– DB21, ... DBX332.6 (orientation axis 1: Travel command "minus") or
– DB21, ... DBX332.7 (orientation axis 1: Travel command "plus")
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
H1: Manual traversing
17.5 Incremental manual traversing
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