Time Stamp Of The Active M Auxiliary Function; Determining The Output Sequence - Siemens SINUMERIK 840D sl Function Manual

MD22020 $MC_AUXFU_ASSIGN_EXTENSION [0] = 0
MD22020 $MC_AUXFU_ASSIGN_EXTENSION [1] = 0
MD22020 $MC_AUXFU_ASSIGN_EXTENSION [2] = 0
MD22020 $MC_AUXFU_ASSIGN_EXTENSION [3] = 0
MD22030 $MC_AUXFU_ASSIGN_VALUE [0] = 7
MD22030 $MC_AUXFU_ASSIGN_VALUE [1] = 9
MD22030 $MC_AUXFU_ASSIGN_VALUE [2] = 8
MD22030 $MC_AUXFU_ASSIGN_VALUE [3] = 9
MD22035 $MC_AUXFU_ASSIGN_SPEC [0] = 'H121'
MD22035 $MC_AUXFU_ASSIGN_SPEC [1] = 'H121'
MD22035 $MC_AUXFU_ASSIGN_SPEC [2] = 'H121'
MD22035 $MC_AUXFU_ASSIGN_SPEC [3] = 'H121'
Part program (section):
Program code
...
N10 ... M8
N20 ... M9
N30 ... M7
...
During the block search, the auxiliary function M9 is collected for groups 5 and 6.
Scan of the collected M auxiliary functions:
M function of the fifth group: $AC_AUXFU_M_VALUE [4] = 7
M function of the sixth group: $AC_AUXFU_M_VALUE [5] = 9
8.13.3

Time stamp of the active M auxiliary function

When outputting collected auxiliary functions following a block search, attention must be paid
to the sequence during collecting. For this reason, each group is assigned a time stamp which
can be queried on a group-specific basis by way of the system variable below:
$AC_AUXFU_M_TICK[<n>] (time stamp of the active M auxiliary function)
8.13.4

Determining the output sequence

Function
The following predefined procedure is provided to simplify the process of determining the
output sequence of M auxiliary functions for the programmer:
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
H2: Auxiliary function outputs to PLC
8.13 Behavior during block search
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