Shared Var Output
Updates a shared variable
Category: Output
Description:
The Shared Variable blocks are used to communicate diagrams between tasks or inside a specific task. It is a kind of global variable with unrestricted scope, it can be accessed by any task and any diagram either finite state, transition, or signal flow. Additionally, it has a predictable behavior, since its value is always initialized as zero and is updated only at the end of a task execution with no interference by the scheduling logic during preemptions.
The Shared Variable Output block receives a value and stores it in a memory which is protect amongst processes of specific tasks. The memory is updated at the end a task execution.
Parameters:
QFIRE CTR-101
has 128 different addresses in the memory to save data. These addresses work like global variables that can be accessed by different diagrams.
Shared Variable Output Dialog
Ports:
Input
Receives a value and saves it in the memory address selected in the Variable Index parameter field.
Data Types:
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