ABB RELION 650 SERIES, Инструкция по эксплуатации, Страница: 51 / 110

The
Cycle Time can be selected to 5, 20 or 100 ms. Depending on function block type and the
650 series product only one, two or all three possibilities may be available.
The combination
Execution Order, Instance Number is predefined by ABB. Mainly for basic
logic function blocks like for example
AND, OR, a set of combinations spread over the full
range of execution orders is available. This gives the possibility to select a combination which
fits to the execution order range needed in that application part.
Application configuration cycle time and execution order organization
The application execution within the 650 series products is organized in three time classes,
see Figure 34 .
IEC09000739 V1 EN-US
Figure 34: ACT: Possible MainApplication cycle times
For the same time point, faster cycle times are executed first.
A function block that is placed after a function block in the execution flow must
have the same or a higher cycle time and/or execution order. See Figure 35 .
IEC09000615-2-en.vsd
IEC09000615 V2 EN-US
Figure 35: Cycle time and execution order
A function block type can be defined to be a member of one or several cycle times. A function
block instance can be set only to one cycle time.
1MRK 511 284-UEN B Section 5
Protection and control engineering
650 series 45
Engineering manual
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