Siemens Sinamics S110 Function Manual page 294

Drive functions
7.3 Function modules
Run sequence
In the factory setting, each free function block is assigned a default setting for the run
sequence. The run sequence of consecutive free function blocks within a runtime group can
be optimized by changing these values accordingly.
A run sequence value can be used on a drive object once only. If the same run sequence
value is assigned twice in online mode for a drive object, the second value is rejected and
the first value retained.
The run sequence can be set to between 0 and 32000. A function block with a lower run
sequence value is computed within a runtime group before one with a higher value.
Note
If configuration is carried out OFFLINE, you can set each run sequence value at the outset
(e.g. a value can also be assigned to more than one function block simultaneously). The
system does not check this until the configuration has been downloaded to the Control Unit.
Once downloaded, the parameter values are checked in the order of the parameter
numbers. If the system detects that the run sequence value for one function block is already
being used by a different function block, the value is not applied and fault F01042 (message
in STARTER: Error occurred when downloading) is output. You are informed of this in the
"Target system output" window.
Note
In the factory setting, value range 10 ... 750 is already assigned the run sequence values of
the function blocks.
In user configurations, for example, the only run sequence values outside this range which
should be used are those above 1000. This will avoid conflicts during the download process
with the run sequence values that have already been assigned.
If at all possible, the process signals for a drive object should only be processed by the
function blocks on this drive object.
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Function Manual, 01/2011, 6SL3097-4AB10-0BP3
Function Manual