Characteristics of SIMATIC BATCH
When compared with previous versions of SIMATIC BATCH, this version allows faster batch
control. The following features characterize SIMATIC BATCH in AS-based mode:
● Shifting of the recipe logic to the automation system (BATCH block UNIT_PLC)
● Reduction of the communication paths and communication traffic
● Shorter reaction times
● SFC time optimization due to event-driven calls
Compatibility with SIMATIC PCS 7 and SIMATIC BATCH
The proven functionalities, such as engineering, convenient recipe management, and operator
control and monitoring of the process, remain available. Added to this are the deterministic
algorithm and the performance at step changes while the runtime system on the AS is activated.
Hierarchical recipes are created in three levels: RUP, ROP, and RPH. These recipes are
executed in the automation system as batches. Either the BATCH Control Center or the
BATCH OS controls are used for operator control and monitoring of recipes.
Online functionalities, such as creating and starting batches, are available not only in BatchCC
but also with the new BATCH OS controls on a PCS 7 OS.
Offline and project functions, such as "Updating process cell", "Permission management",
"Role management", and the creation of materials, formulas, and formula categories continue
to be used exclusively in BatchCC.
Recipes for AS-based operation continue to be created with the Recipe Editor of SIMATIC
BATCH and their use is checked there. For recipes that have parts executed on the AS,
additional constraints were included in the validation. There is a check to determine whether
free memory blocks are available on the AS to execute selected recipe parts during runtime.
Use of existing recipes
With suitable system knowledge, existing hierarchical recipes from previous versions of
SIMATIC BATCH can be reconfigured for AS-based operation.
3.4.3 Shifting of the recipe logic to the AS
Acceleration of recipe execution steps
An essential measure for accelerating recipe execution steps is the shifting of the recipe logic
from the BATCH control server to the automation system. It results in substantially faster as
well as deterministic step change times.
In comparison to a server, the automation system operates deterministically because the
individual cycles of organization blocks are controlled in it. On the server, in contrast, the
execution times of the cycles can vary depending on the load of the CPU.
Moving the recipe logic also results in changes to the system architecture. As can be seen in
the figure "Shifting the recipe logic", the BATCH control server is connected to the AS via a
Product introduction and installation
3.4 Operating modes in SIMATIC BATCH
SIMATIC BATCH V8.2
44 Operating Manual, 02/2016, A5E35958174-AA
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