Siemens SINUMERIK 840D sl Function Manual page 74

Detailed description
3.7 Actions in synchronized actions
Meaning
Parameter
<Poly_No>:
<Systemvar>:
<Wear>:
<Channel_No>:
<Spindle_No>:
Example
Compensate length of an active grinding wheel
Program code
FCTDEF(1, -1000, 1000, -$AA_IW[V], 1)
; FTOC:
; Polynomial no.: 1
; System variable: $AA_IW[V] (axial actual value of the V axis)
; Wear parameter: Length 3
; Target channel: Channel 1
ID=1 DO FTOC(1, $AA_IW[V], 3, 1)
WAITM (1,1,2)
G1 V-0.05 F0.01 G91
...
CANCEL(1)
...
Note
Because no frequency and no condition has been specified in the synchronized action, the
action part is executed in every interpolator clock cycle.
74
Meaning
Number of the polynomial defined with FCTDEF
Arbitrary system variable of the REAL type that can be used in
synchronized actions.
Wear parameter (length 1, 2 or 3) in which the offset value is added.
Target channel in which the offset must be applied. This enables si‐
multaneous dressing from a parallel channel. In the target channel of
the offset, the online offset must be switched on with FTOCON.
If no channel number is programmed, the offset acts in the active
channel.
The spindle number is programmed if a non-active grinding wheel
needs to be dressed.
Requirement: One of the following functions is active
● "Constant grinding wheel peripheral speed"
● "Tool monitoring"
If no spindle number is programmed, the active tool is compensated.
Comment
; Synchronization with the machining
channel
; Traversing motion of the V axis
; Deselect online offset
Function Manual, 08/2018, 6FC5397-5BP40-6BA2
Synchronized actions