Specifications

Configuring Points for Recipes
PlantScape Server and Client Configuration Guide 367
Configuring Points for Recipes
If a point will be in a recipe, the first two characters of the point ID must be the
unit descriptor. The unit descriptor is a 2-character identifier (for example 01, L7).
You need to configure a point for every combination of unit descriptor and
ingredient that you want to use. For example, if two units (“01” and “02”) are to
be used with a recipe that contains the ingredient WATER, the points 01WATER
and 02WATER need to be configured.
You can also configure an analog point with the name
uu RECIPE, where uu is
the unit descriptor. Whenever a recipe is run,
uu RECIPE’s SP and description are
updated to reflect the recipe’s number and name respectively.
Note For some controllers, you need to set the mode of points in the controller to
allow control by programs such as recipes. For example, the mode attribute
(MODEATTR) for PID blocks in the Honeywell Hybrid Controller must be set to
Program to allow control by recipes.
When the operator loads a recipe, PlantScape determines the point ID to be
loaded by combining the unit descriptor defined for the recipe with the partial
point IDs defined for each ingredient. The following figure shows how the unit
descriptor and points in the recipe are used.
Figure 17.1 How Points Are Used with Recipes
02WATER SP 95.0
02ACID SP 50.0
02START OP 1.0
Unit 02
Point Parameter Working Value
WATER SP 95.0
ACID SP 50.0
START OP 1.0
Recipe 3
Partial IDs for Ingredient Points
Unit (Descriptor Entered by Operator or Engineer)
Point IDs to Be Loaded (Configured
in Database by Engineer)
Load
(Entered by Engineer)
plscpcg.book Page 367 Monday, May 28, 2001 10:11 AM