Continuouspath Mode, Exact Stop And Lookahead (B1); Signals From Channel (Db21; Signals From Axis/Spindle (Db31 - Siemens SINUMERIK 840D sl Function Manual

2.3

Continuouspath mode, exact stop and LookAhead (B1)

2.3.1

Signals from channel (DB21, ...)

DB21, ...
DBX36.3 All axes stationary
Edge evaluation: no
Signal state 1 or All axes assigned to the channel are stationary with interpolator end.
edge change No other traversing movements are active.
0 → 1
2.3.2

Signals from axis/spindle (DB31, ...)

DB31, ...
DBX60.6 Position reached with exact stop coarse
Edge evaluation: no
Signal state 1 or The axis is in the appropriate exact stop and no interpolator is active for the axis and:
edge change
•
0 → 1
•
•
•
•
Signal state 0 or The axis is not in the appropriate exact stop or the interpolator is active for the axis or:
edge change
•
1 → 0
•
•
•
•
Signal irrelevant for Rotary axes that are programmed as rounding axes.
...
Corresponding to .... MD36000 $MA_STOP_LIMIT_COARSE (exact stop coarse)
Basic logic functions: NC/PLC interface signals (Z1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Signal(s) updated: cyclic
Signal(s) updated: cyclic
the control is in the reset mode (reset key or end of program)
the axis was last programmed as a positioning axis or positioning spindle (initial setting of
supplementary axis: Positioning axis)
the path movement was stopped with NC Stop
the spindle is in the closed-loop positioncontrolled mode (SPCON/SPOS instruction) and is
stationary
the axis is switched from closed-loop speedcontrolled to closed-loop positioncontrolled mode
with IS "position measuring system"
the path movement was stopped with NC Stop
the spindle is in the closed-loop speedcontrolled mode (SPCOF/SPOSA instruction)
the "followup" mode is active for the axis
the "parking" mode is active for the axis
the axis is switched from closed-loop positioncontrolled to closed-loop speedcontrolled mode
with IS "position measuring system"
2.3 Continuouspath mode, exact stop and LookAhead (B1)
Detailed Description
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