Siemens Simatic S7-1500 / ET 200MP - Page 22

Address space
Digital input module DI 64x24VDC SNK/SRC BA (6ES7521-1BP00-0AA0)
Equipment Manual, 07/2020, A5E48025116-AA
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Address space for configuration as 1 x 64-channel DI 64x24VDC SNK/SRC BA
The figure below shows the address space assignment for configuration as a 1 x 64-channel
module. You can freely assign the start address for the module. The addresses of the
channels are derived from the start address.
"IB a" for example, stands for module start address input byte a.
Figure 4-1 Address space for configuration as 1 x 64-channel DI 64x24VDC SNK/SRC BA