Siemens SINUMERIK 840D sl Function Manual page 1059

DB31, ...
DBX28.1
Edge evaluation: Yes
Signal state 1 or edge
change 0 → 1
Special cases,
errors, ....
Corresponding to ....
DB31, ...
DBX28.2
Edge evaluation: Yes
Signal state 1 or edge
change 0 → 1
Special cases,
errors, ....
Corresponding to ....
DB31, ...
DBX61.1
Edge evaluation: No
Signal state 1 or edge
change 0 → 1
Corresponding to ....
Extended Functions
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
AxReset
Reset axis/spindle
Signal(s) updated: Cyclic
An axis/spindle controlled from the PLC is to be reset again.
The NCK switches the active axis/spindle to the stop state with IS DB31 ... DBX63.2
("AXSTOP active").
Condition:
The axis/spindle must have actually accepted the PLC and be controlled by the PLC.
DB31, ... DBX63.2 (AXRSTOP); Stop axis/spindle
AxResume
Resume axis/spindle motion
Signal(s) updated: Cyclic
An interpolating axis/spindle from the main run continues independently of the NC program
and is controlled by the PLC.
The NCK checks whether an axis/spindle axial alarm with the cancel criterion
CANCELCLEAR or NCSTARTCLEAR is active and deletes it.
The axis-specific RESUME (DB31 ... DBX28.2) instruction can be aborted by the NCK with IS
DB31 ... DBX28.2 ("AXSTOP active").
Condition:
The axis/spindle must be operating under PLC control.
The IS DB31 ... DBX28.2 ("AXRESUME") is ignored in the following error states detected by
the NCK:
When the PLC prompts axes/spindles to continue traversing and this axis/spindle has not
been accepted by the PLC.
The axis/spindle is not in the stopped state.
The axis/spindle cannot resume traversal because an alarm is active.
DB31, ... DBX28.1 (AXRESET); Reset axis/spindle
AxAlarm
Axial stop alarm for this axis
Signal(s) updated: Cyclic
The NCK brakes the axis/spindle along a ramp and confirms the braking operation via the
OPI.
At the same time the PLC alarm is sent with IS DB31, ... DBX61.1 ("Axial alarm") == 1 and
the status system variable $AA_SNGLAX_STAT == 5 is set.
System variable $AA_SNGLAX_STAT == 5
NC/PLC interface signals (Z2)
19.11 Positioning axes
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