Extended instructions
9.9 Recipes and Data logs
S7-1200 Programmable controller
500 System Manual, V4.2, 09/2016, A5E02486680-AK
First, create a new PLC data type
Add a new PLC data type whose name is the recipe type. In the following image,
"Beer_Recipe" is the new complex PLC data type that stores a sequence of simple data
types. The "Beer_Recipe" PLC data type is a data template that is reused in each recipe DB
record and also in the active recipe DB. Enter the component names and data types that are
common to all the example recipes. The individual component values are added later in the
recipe DB.
Second, create a recipe data block
● Create your recipe DB as a global data block with the DB property "Only store in load
memory" enabled.
● The name of a recipe data block is used as file name of the corresponding CSV file. The
DB name characters you assign must follow the Windows file system naming restrictions.
Characters \ / : * ? " < > | and the space character are not allowed.
● The recipe array assignment is "Products" as Array [1.. 5] of "Beer_Recipe". The array
size 5 is the maximum number of recipe flavors that are possible.
● The values for recipe components are added as DB start values.
In the following image, the "BlackBeer" recipe is expanded to show all the components of a
recipe record.
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