Siemens sinumerik 840D sl Function Manual page 321

Programming with WATC
Syntax:
Identifiers:
Functionality:
Parameter:
FAx:
BC:
Example:
WAITC(X2,"IPOSTOP")
Boundary conditions
WAITC can only occur singularly in a block, contrary to the keyword CPBC.
Special functions: Axis Couplings and ESR (M3)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0
WAITC(FAx1,BC)
Wait for Coupling Condition
Defines block change criterion with active coupling.
FAx Designates the following axis and therefore the coupling
module.
BC Defines the desired block change criterion.
Type: STRING
Range of values:
Type: STRING
Range of values:
"NOC" Block change is performed irrespective of the
coupling status.
"IPOSTOP" Block change is performed with setpoint synchronism.
"COARSE" Block change is performed with actual value
synchronism "coarse".
"FINE" Block change is performed with actual value
synchronism "fine".
Default value: "NOC"
; Block change during processing of the parts program is
done with setpoint synchronism (with active coupling to
following axis X2).
Axes of the channel
Detailed description
2.5 Generic coupling
101