Siemens SINUMERIK 840Di Function Manual page 496

Detailed Description
2.5 Priorities of the output behavior
Priority sequence
The rule for the priority sequence is that the parameterized output behavior with lower
priority becomes active if no output behavior with higher priority has been parameterized.
Area: Output duration
The following priorities apply to the output duration:
Priority Output behavior
Highest Specific to auxiliary functions
Specific to auxiliary functions
Group-specific
Lowest Not defined
Area: Output relative to motion
The following rules apply to output relative to motion:
Priority Output behavior
Highest Specific to auxiliary functions
Group-specific
Type-specific
Lowest Not defined
Note
Part program blocks without path motion
In a part program block without a path motion (even those with positioning axes and
spindles), the auxiliary functions are all output immediately in a block.
2-22
Defined via:
Part program instruction: QU(...)
MD22035 $MC_AUXFU_ASSIGN_SYNC
MD22080 $MC_AUXFU_PREDEF_SYNC
MD11110 $MC_AUXFU_GROUP_SPEC
Default output behavior: Output duration one OB1 cycle
Defined via:
MD22035 $MC_AUXFU_ASSIGN_SYNC
MD22080 $MC_AUXFU_PREDEF_SYNC
MD11110 $MC_AUXFU_GROUP_SPEC
MD22200 $MC_AUXFU_M_SYNC_TYPE
MD22210 $MC_AUXFU_S_SYNC_TYPE
MD22220 $MC_AUXFU_T_SYNC_TYPE
MD22230 $MC_AUXFU_H_SYNC_TYPE
MD22240 $MC_AUXFU_F_SYNC_TYPE
MD22250 $MC_AUXFU_D_SYNC_TYPE
MD22252 $MC_AUXFU_DL_SYNC_TYPE
Default output behavior: Output at block end
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Auxiliary Function Output to PLC (H2)