Siemens SINUMERIK 840D sl Function Manual page 473

Example of conditional wait in continuous-path mode
Conditional wait involving three channels (schematic)
The example is schematic and shows only those commands that are relevant to the
synchronization process.
Channel 1:
%100
N10 INIT(2, "_N_200_MPF","n")
N11 INIT(3, "_N_300_MPF","n")
N15 START(2, 3)
...
N20 WAITMC(7, 2, 3)
...
N40 WAITMC(8, 2)
...
Extended Functions
Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Mode Groups, Channels, Axis Replacement (K5)
; Select partner program Channel 2
; Select partner program Channel 3
; Start programs in Channel 2, 3
; Processing in Channel 1:
; Wait conditionally for marker 7 from
; Channels 2 and 3
; Additional processing in Channel 1:
; Wait conditionally for marker 8 from
; Channel 2
; Additional processing in Channel 1:
Channels
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