Conditional Wait In Continuous Path Mode Waitmc - Siemens SINUMERIK 840D sl Function Manual

Channel 2:
%200
.
N70 WAITM(1,1,2)
.
N270 WAITM(2,1,2)
.
N400 M30
.
.
6.3.2

Conditional wait in continuous path mode WAITMC

Objectives
Decelerating and waiting must take place only in cases where not all the channels to be
coordinated have set their mark numbers for the purpose of synchronization. Conditional
waiting.
The instants in time for generating wait marks and the conditional wait calls are decoupled.
For the purpose of inter-channel communication, marks may even be set when waiting and
decelerating are not intended at all. No WAITMC() command. In this case, the channel
marks settings remain valid after execution of RESET and NC Start.
Preconditions for conditional wait
To utilize conditional wait with WAITMC() and reduced wait times, the following conditions
must be fulfilled:
● Continuous-path mode G64 must be set
● Look Ahead function must be active
● exact stop (G60, G09) not selected.
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
If exact stop is selected, waiting with WAITMC() corresponds to waiting with WAITM()
from SW 3.
K5: Mode groups, channels, axis interchange
6.3 Channels - only 840D sl
; Processing in channel 2
; Wait for WAIT-tag 1 in the channel 1 and
in the channel 2
; additional processing in Channel 2
; Wait for WAIT-tag 1 in the channel 2 and
in the channel 2
; additional processing in Channel 2
; End of program in channel 2
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