Boolean input and output signals may need to be inverted to fulfil the logic. The
Application Configuration tool supports the adding of inversion logic to a binary
signal.
All input signals have a default value that is used when the signals are not connected
in the configuration.
5.1.3
Function block execution parameters
Three function block execution parameters have an influence on the runtime
execution of the function block within the application configuration.
•
Execution order
•
Cycle time
•
Instance number
Each time a new function block is inserted, these parameters are shown in the Function
Block Instance dialog box in the Application Configuration tool. The three parameters
are selectable and not selectable depending on the function block type. The cycle time
is predefined to one value. The instance number is a counter for the total possible
number of function blocks of that type used within the application configuration.
The
Execution Order
and
Instance Number
are a combination that is predefined
within a product. It is possible to select a pair out of the list.
Section 5
1MRS757810 C
Protection and control engineering
68
REC615 and RER615
Engineering Manual
