# ID 50388

Inadmissible number of late sync function in the channel.
Description | The number of channel-specific M functions programmed in an NC line with late synchronization (Late sync, types MVS_SLM, MVS_SLP) is limited. After triggering event of active codes with G01 movement block or explicit triggering via NC command, the M functions are enabled until synchronization with PLC.

For more detailed information about M-H functions, see

[FCT-C1// Section: Reaction of “late” synchronisation].

[FCT-C1// Section: Parameterising the synchronisation methods].

Response | Class | 4 | Movement stop.
Solution | Class | 6 | Reduce the number of channel-specific M functions programmed per NC line with later synchronization .
Parameter | %1: | Current value [-]
Block number in the NC program.
%2: | Limit value [-]
Number of axis-specific M functions currently programmed in a NC line M functions with later synchronization.
%3: |
Maximum number of permissible M functions with late synchronization per axis and NC line.
Error type | 1, Error message from NC program.