End Of Motion Criterion With Block Search - Siemens SINUMERIK 840D sl 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 682)
11.6.2

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.
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
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.
; Block change criterion, activate "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 moves further to
position 250. As soon as the X axis starts to brake and the
position of the X axis >= 249.7, the block change is real-
ized in the technology cycle.
; Axis X brakes and returns to position 0,
the block change is realized at position 0 and "exact stop
fine".
P2: Positioning axes
11.6 Block change
681