2 Visual Components Manuals

Introduction to Visual Components 2.3
The input field for the recipe no. is connected to the static PV (see code). Input fields for
elements 1 − 5 are connected to the dynamic PVs to (see code).
The contents of the fields for elements 1 − 5 can now be controlled using the recipe number. A change in the
recipe number in the code causes the dynamic PV to 'transfer' to the array element with the index
. Both the array (with 5 elements) and the dynamic PV are of type which
contains 5 UDINT (unsigned long) elements (elem1 − elem5).
4.12.7.3 Code in Automation Basic
4.12.7.3.1 Initialization Section
In the initialization section, 5 array elements of type are initialized with values, the current recipe
number is set to recipe 1, and the old recipe number is set to 0. The control
variable is set to 1 if the new recipe number differs from the old number; it is set to 0 at the
beginning.
(* init program *)
loop i = 0 to 5 do
rec_arr[i].elem1 = 100 * i + 1;
rec_arr[i].elem2 = 100 * i + 2;
rec_arr[i].elem3 = 100 * i + 3;
rec_arr[i].elem4 = 100 * i + 4;
rec_arr[i].elem5 = 100 * i + 5;
endloop
recipeNrAct = 1;
recipeNrOld = 0;
recipeChanged = 0;
4.12.7.3.2 Cyclic Section
The cyclic part checks whether the current recipe number is different from the old recipe number
if the user selects a new recipe number using an input field. In this case, the new recipe number
4.12.7.3 Code in Automation Basic 431