Siemens SINUMERIK 840D sl Function Manual page 297

Position offset for master axis/spindle actual value
The currently applicable position offset value is displayed here (relative to the actual value) if
such a position offset (angular offset between master and slave axes) has been programmed
for the "Synchronous spindle" function.
Unit: mm, inches, degrees
References:
/FB2/ Function Manual Extension Functions, Synchronous Spindle (S3)
Position offset for master axis/spindle setpoint value
The currently applicable position offset value is displayed here (relative to the setpoint) if
such a position offset (angular offset between master and slave axes) has been programmed
for the "Synchronous spindle" function.
Unit: mm, inches, degrees
References:
/FB2/ Function Manual Extension Functions, Synchronous Spindle (S3)
Current gear stage
The current actual gear stage is displayed here.
With axes, this is only displayed if a spindle is assigned to the axis. This display corresponds
to IS DB31, ... DBX16.0 to 16.2 ("Actual gear stage").
References
/FB1/ Function Manual Basic Functions; Spindles (S1)
Displays which of the 6 parameter sets of the position controller is active. A parameter set
changeover takes place, for example, with a gear shift.
References:
/FB1/ Function Manual Basic Functions; Velocities, Setpoint/Actual-Value Systems, Closed-
Loop Control (G2)
Controller mode
Displays the current controller modes.
0:
1:
2:
3:
4:
5:
For a more detailed description of controller modes, refer to:
References:
/FB1/ Function Manual Basic Functions; Various Interface Signals (A2)
Basic logic functions: Diagnostic tools (D1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Position Control
Speed Control
Stopping
Parking
Followup
Braking
Detailed description
2.3 Axis/spindle service display
15