Siemens SIMATIC ET 200AL - Data Exchange between Higher- and Lower-Level IO System

Functions
5.2 Intelligent IO devices (I-devices)
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I-device as a shared device
An I-device can also be used simultaneously by multiple IO controllers as a shared device.
Figure 5-10 I-device as a shared device
Information about configuring an I-device as a shared device is available in the section
Configuring an I-device as a shared device (Page 145).
5.2.4
Data Exchange between higher- and lower-level IO system
Introduction
The next chapter shows the data exchange between the higher- and lower-level IO system.