Siemens SINUMERIK 828D

Z1: NC/PLC interface signals
19.3 Continuouspath mode, exact stop and LookAhead (B1)
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
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19.3 Continuouspath mode, exact stop and LookAhead (B1)
19.3.1 Signals from channel (DB21, ...)
19.3.2 Signals from axis/spindle (DB31, ...)
DB21, ...
DBX36.3 All axes stationary
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change
0 → 1
All axes assigned to the channel are stationary with interpolator end.
No other traversing movements are active.
DB31, ...
DBX60.6 Position reached with exact stop coarse
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change
0 → 1
The axis is in the appropriate exact stop and no interpolator is active for the axis and:
• 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 positioncontrolled mode (SPCON/SPOS instruction) and is
stationary
• the axis is switched from closed-loop speedcontrolled to closed-loop positioncontrolled mode
with IS "position measuring system"
Signal state 0 or
edge change
1 → 0
The axis is not in the appropriate exact stop or the interpolator is active for the axis or:
• the path movement was stopped with NC Stop
• the spindle is in the closed-loop speedcontrolled mode (SPCOF/SPOSA instruction)
• the "followup" mode is active for the axis
• the "parking" mode is active for the axis
• the axis is switched from closed-loop positioncontrolled to closed-loop speedcontrolled mode
with IS "position measuring system"
Signal irrelevant for
...
Rotary axes that are programmed as rounding axes.
Corresponding to .... MD36000 $MA_STOP_LIMIT_COARSE (exact stop coarse)
DB31, ...
DBX60.7 Position reached with exact stop fine
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change
0 → 1
Refer to DB31, ... DBX60.6 (position reached with exact stop coarse).
Signal state 0 or
edge change
1 → 0
Refer to DB31, ... DBX60.6 (position reached with exact stop coarse).