End Of Motion Criterion With Block Search - Siemens SINUMERIK 840D Function Manual

Program code
N50 POS[X]=0
N60 X10 F100
N70 M30
Block change criterion "braking ramp" and "tolerance window" in synchronized action
In the technology cycle:
Program code
FINEA
N10 POS[X]=100
N20 IPOBRKA(X,100)
N21 ADISPOSA(X,2,0.3)
N30 POS[X]=200
N40 POS[X]=250
N50 POS[X]=0
N60 M17
IPOBRKA(X) could also be written into the N20 blocks without specifying the instant in time, if
the corresponding value has already been entered into the setting data:
SD43600 $SA_IPOBRAKE_BLOCK_EXCHANGE[X] == 100
See also
Control by the PLC (Page 212)
6.6.2

End of motion criterion with block search

Last block serves as container
The last end-of-motion criterion programmed for an axis is collected and output in an action
block. The last block with a programmed motion end condition that was processed in the search
run serves as a container for setting all axes.
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
Comment
;Axis X brakes and returns to position 0,
the block change is realized at position 0 and "exact stop
fine".
Comment
;End-of-motion criterion: "Exact stop fine"
;The technology cycle block change is realized if the X axis
has reached position 100 and "exact stop fine" is reached.
;Activate block change criterion "braking ramp", 100% =
start of the braking ramp.
;Tolerance window: 2 = actual position, tolerance = 0.3
;Technology cycle block change is realized as soon as the X
axis starts to brake and the actual position of the X axis >=
199.7.
;X axis does not brake at position 200, but rather continues
to traverse to position 250. As soon as the X axis starts to
brake and the position of the X axis >= 249.7, the block
change takes place in the technology cycle.
;X axis brakes and returns to position 0,
the block change is realized at position 0 and "exact stop
fine".
P2: Positioning axes
6.6 Block change
211