Operating instructions

Operating recipes
10.5 Recipe values in the HMI device and the PLC
MP 377, MP 377 PRO (WinCC flexible)
Operating Instructions, 10/2008, 6AV6691-1DR01-0AB0
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10.5 Recipe values in the HMI device and the PLC
Introduction
You can change the values of a recipe on the HMI device and therefore influence the
manufacturing process or a machine.
Depending on the configuration, the recipe values are displayed, edited and saved in
different ways:
● If you are editing recipes with a recipe view in your project, the values are saved
in recipe data records
● If you are editing recipes in a recipe screen in your project, the values are saved
in recipe tags
Differences may occur between the display values in the recipe view and the values saved in
the associated tags in an ongoing project when you edit recipes with a recipe view and in a
recipe screen. To prevent this, the recipe data record values must be synchronized with the
values of the recipe tags.
You have however the option to perform synchronization operations at any time.
Synchronization only takes place if the configuration engineer has activated the respective
settings for a recipe.
Note
Recipe tags can only be synchronized in the enhanced recipe view.
Synchronizing recipe tags
Synchronization of the recipe tags depends on the configuration:
● Automatic synchronization:
The values of the recipe view are synchronized with the associated recipe tags. In this
case, changes to values in the recipe view have an immediate effect on the values of the
associated recipe tags. The values are only synchronized, when an operating element
that is outside the recipe view is operated.
● Synchronization by the user:
The values of the recipe view and the associated recipe tags are not synchronized
automatically. The configuration engineer has assigned the same function to the
button or a different operating element in the recipe view. The recipe tags and the recipe
view are only synchronized when you operate the buttons or the appropriate operating
element.