Siemens SIMATIC S7-1500 Manual page 30

Parameters/address space
4.4 Address space
Address space for configuration as 1 x 8-channel AI 8xU/I HS for oversampling
The following figure shows the address space assignment with the configuration as
8-channel module for the oversampling function. You can freely assign the start address for
the module. The addresses of the channels are derived from the start address.
Writing always starts from IB x. If fewer than 16 sub-cycles are set, the addresses that are
then unused are filled with 7FFF
"IB x" stands, for example, for the module start address input byte x.
Figure 4-6
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H
Address space for configuration as 1 x 8-channel AI 8xU/I HS for oversampling
Analog Input Module AI 8xU/I HS (6ES7531-7NF10-0AB0)
Manual, 12/2016, A5E03484886-AE