be accurate if additional logic is used to connect priority signals to
function blocks.
Example shows a simple situation where the execution order causes one cycle time delay
if the NOT port is executed in the order determined by the automatic calculation.
GUID-F8162182-FF21-467A-AEB9-23284CB3FABD V1 EN
Figure 50: Feedback loop situation with automatically calculated execution orders
By setting a smaller execution number than in the AND port to where the NOT port is
connected, it is possible to fix the execution order of all functions in a loop so that they are
handled in the same task.
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Figure 51: Feedback loop situation with manually fixed execution order for NOT port
Execution number can be changed by right-clicking the function and selecting Change
CycleTime ExecOrder.
After manually defining the execution number, the function is no longer part of the
automatic execution order calculation. The function can be included back to the automatic
calculation by right-clicking the function and selecting Include FB in calculation.
Section 5 1MAC108982-MB E
Protection and control engineering
82 615 series ANSI
Engineering Manual
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