Revision 9
900 Control Station User Guide
117
May 2014
VARIABLE RECIPES
Overview
Description
A Variable Recipe is a list of Grouped Variables that define the values (ingredient quantities) needed to
make a product or run a particular batch. The items represent Analog and/or Digital Points that were
assigned in the Function Block Configuration and are identified by their Variable Names. Variable Recipes
have these basic attributes:
Recipe Number
- A unique number assigned for each recipe that is configured. Numbers are assigned
during configuration or through an upload/download operation. They may have been assigned in any
sequence with gaps between numbers, but no two recipes can be given the same number.
Recipe Name
- A descriptive name assigned to the recipe consisting of letters or numbers with no spaces,
up to 8 characters.
Recipe Description
– Additional text used to identify the recipe, up to 16 characters.
Recipe Variables
- A list of Variables and their values for each recipe, up to 50 variables each.
Variable Recipe Load vs. Variable Recipe Upload/Download
Recipes are stored in the memory of the HC900 controller in a recipe pool. Variable recipes may be read
(uploaded) from the pool into the displays of the operator interface where they may be viewed, edited,
exported and duplicated before being returned (downloaded) to the recipe pool of the controller. (see
Uploading and Downloading Recipe Files in a previous section)
Once the variable recipe is in the controller’s recipe pool, a Variable Recipe Load widget is used from the
operator interface to select a recipe from the pool and have its values transferred to the various analog and
digital variables in the controller’s configuration. See Figure 8.
NOTE:
The contents of the variable recipe cannot be edited from the recipe selection widget. For editing,
the recipe must be uploaded, modified, then downloaded to the controller.