Section 1:
Introduction
Page 5
The Execute drop down box allows the Recipe field to function in three different ways.
On Select is the default choice and causes the Recipe field to function like all other data
access fields. That is, The
Select
key is used to set focus to the field then the
Enter
key is
used to execute the specific field function When Increment or Decrement is used this is the
only valid execute method allowed.
When a screen is first opened the various field types that make up the screen go through an
initialization procedure. This procedure places associated text on the display and opens
connections to the communication driver if the field type is a data access field such as a
Recipe field.
If the Execute method selected for a Recipe field is an As LinkID then the initialization procedure and operation of the
field are changed. A connection to the communication driver is still made but the field text is not shown on the 2800
display and the field is not selectable using the
Select
key. A pointer to the Recipe is stored in the internal memory
of the 2800. To cause the Recipe items to be downloaded to the Ultra this Recipe fields Link ID must be included within
another Recipe. This is done using the Recipe Link ID parameter found within the Data Reference list. When the
Recipe Link ID parameter is encountered within an executing Recipe field the download process will continue using
the parameters included in the linked Recipe. The Recipe Link ID parameter should be the last parameter within a
recipe list and the assigned value must be that of a valid linked recipe. A linked Recipe field can include a Recipe Link
ID within its parameter list allowing multiple linked recipes to be executed.
If the Execute method selected for a Recipe field is On Open then a connection to the communication driver is made
but the field text is not shown on the 2800 display and the field is not selectable using the
Select
key. The field will
automatically be executed, downloading the parameter list to the Ultra drive.
Within ScreenMaker 2000K the text associated with a Recipe field is always shown, must be at least one character,
and may not be covered by another data access field.
PM2800U3K Revision 4
