Siemens sinumerik 840D sl Function Manual page 341

Modulo reduced rotary axes as leading axes
With modulo reduced rotary axes as leading axes, the input variable is not reduced during
the reduction of the leading axis. The non-reduced position is still taken as the input variable,
i.e. the traversed distance is considered.
Programming example:
A = Modulo reduced rotary axis, X = Linear axis
N10 G0 A0 X0
N20 CPON=(X) CPLA[X]=(A) CPLNUM[X,A]=0.5
N30 A200
N40 A=IC(200)
N50 A=IC(100)
N60 A=ACP(80)
Special functions: Axis Couplings and ESR (M3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0
Detailed description
2.5 Generic coupling
; Traverse motion:
X = 0 degrees, X = 0 mm
A coupling module for linear axis X with
rotary axis A as leading axis is created
and activated. The coupling value is 0.5.
; Traverse motion:
A=200 degrees, X=100 mm (= 200*0.5)
; A traverses through 200 degrees in a
positive direction to 400 degrees, Display
A = 40. Xtraverses through 100mm to
200.
; A traverses from 40 degrees to 140
degrees, X traverses through additional
50mm to 250.
; A traverses in the positive direction to 50
degrees, the traversing path is 300
degrees in the positive direction. X
traverses correspondingly by 150 mm in
the positive direction. The end position is
therefore X = 400.
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