Siemens Simatic S7-300 Specifications download pdf (Page 80)

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S7-300 Automation System CPU Specifications: CPU 31xC and CPU 31x

5-20 A5E00105475-03

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The period that expires between the call of the first instruction in the interrupt OB

and the programmed time of interrupt.

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The fluctuation width of the interval between two successive calls, measured

between the respective initial instructions of the interrupt OBs.

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The following times apply for the CPUs described in this manual:

• Delay interrupt: +/- 200 µs

• Watchdog interrupt: +/- 200 µs

These times only apply if the interrupt can actually be executed at this time and if

not interrupted, for example, by higher-priority interrupts or queued interrupts of

equal priority.

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Siemens Simatic S7-300 Specifications Page 80