Cycle and response times of the S7-1500R/H redundant system
5.5 Timetables for the RUN-Redundant system state
Cycle and response times
70 Function Manual, 10/2018, A5E03461504-AD
Extension due to nesting of higher-priority OBs and/or interrupts
The interruption of a user program at the end of an instruction by a higher-priority OB causes
a certain basic time expenditure. Take account of this basic time expenditure in addition to
the update time of the assigned process image partitions and the execution time of the
contained user program. The following tables contain the typical times for the various
interrupts and error events.
Table 5- 5 Basic time expenditure for an interrupt
Basic time expenditure of the CPUs for an interrupt in the RUN-Redundant system state
Hardware inter-
rupt
560 μs 430 μs 70 μs
Time-of-day inter-
560 μs 430 μs 70 μs
Time-delay inter-
A table of the time expenditure of the CPUs for an interrupt in the RUN-Solo system state is
available in section User program execution time (Page 31).
Table 5- 6 Basic time expenditure for an error OB
Basic time expenditure of the CPUs for an error OB in the RUN-Redundant system state
560 μs 430 μs 70 μs
Module fail-
560 μs 430 μs 70 μs
Station fail-
560 μs 430 μs 70 μs
A table with the basic time expenditure of the CPUs for an error OB in the RUN-Solo system
state is available in section User program execution time (Page 31).
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