Siemens SIMATIC ET 200SP Manual - Halaman 24

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Sampling interval

The duration of a subcycle is the sampling interval. The cycle time T (send clock) for

isochronous mode is specified in the configuration software. This time, divided by the

configured sampling rate n

Example calculation:

Figure 4-2

Chronological sequence

The figure shows the chronological sequence for oversampling. The acquired measured

vales of a data cycle with oversampling are only copied to the interface module in the

subsequent bus cycle and are then available to the processing CPU one bus cycle later.

①

Figure 4-3

Analog input module AI 2xU/I 2-/4-wire HS (6ES7134-6HB00-0DA1)

Manual, 09/2018, A5E03576060-AF

Sample

Example of calculating the sampling interval

n = measured values from bus cycle n

Oversampling

, yields the sampling interval t

Parameters/address space

4.4 Oversampling

of the module.

Sample