Recipes - Siemens TP27 Equipment Manual

Recipes

Purpose Recipes consist of combinations of tags for a specific application. The purpose
of recipes is to transfer several items of data collectively to the PLC. This
transfer requires synchronization between the touch screen and the PLC.
Data records
The data structure is defined with the data record in the configuration. Data is
assigned to the structure on the Touch Panel. This data structure (recipe) can be
used more than once and different data can be assigned to it. We refer to data
records to which data has been assigned as "data records". Data records are
stored on the Touch Panel. This saves memory space on the PLC.
Example of a The same bottling machine of a fruit juice filling system is to be used to
recipe produce orange nectar, an orange drink and orange juice. The mixing ratios are
different for each drink, though the ingredients are always the same. The
production details are configured in this example as the "Mixture" recipe.
Figure 8-1
TP27, TP37 Equipment Manual
Release 01/00
Mixing Unit
Tank 1 Tank 2
MIXER
M
PLC – for example, SIMATIC S7
TP27/TP37
SIMATIC
Example: Fruit juice system
Tank 3
8
To bottling machine
8-1