Siemens SIMATIC BATCH Operating Manual page 769

Combining conditions
Logical operators (see below) are used to combine conditions. You select the desired logical
operators using shortcut menu commands on the displayed operator buttons. Note that, before
you insert a condition, you decide which other condition the new condition is to be combined
with. Accordingly, you choose the appropriate combination level by pressing the corresponding
operator button behind the condition line to be combined.
A selected condition line can be deleted by pressing the "Delete" button.
List
● Variable (first variable): The first variable shows the attribute of the unit (equipment
property) that should fulfill a condition.
● Relational operator OP: The relational operator shows the relationship between two
variables. The symbols of relational operators have the following meaning:
– = : Equality.
– <>: Inequality.
– >=: Is the left variable greater than or equal to the right variable?
– <=: Is the left variable less than or equal to the right variable?
– >: Is the left variable greater than the right variable?
– <: Is the left variable less than the right variable?
● Variable/value (second variable): The second variable shows the value of the unit attribute
(equipment property) needed to fulfill the desired condition.
● Unit of measure: The physical unit specified for the variable is displayed here.
● Logical operators: You can use logical operators to flexibly combine your conditions
(shortcut menu commands). By single clicking the button with the right mouse button, you
open a menu for selecting the required logic operation. The logic operations provide the
result "satisfied" (or true) as follows:
– AND : all conditions are fulfilled
– OR : at least one of the conditions is fulfilled
– NAND: not all conditions are fulfilled
– NOR : none of the conditions are fulfilled
– XOR : at most one condition is fulfilled
● Change: Click the "Change" button to start the dialog-guided input of a condition created
previously with the "New" button.
● New: Use the "New" button to insert new rows for additional conditions.
● Delete: The "Delete" button deletes the selected condition (row).
Evaluation of operator input with graphic display
During the runtime of a batch, the configured conditions are resolved and the result is displayed
graphically.
SIMATIC BATCH V8.2
Operating Manual, 02/2016, A5E35958174-AA
Context help references
14.1 Dialogs
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