Siemens SIMATIC S7-1500 Manual page 15

Address space for configuration as 1 x 32-channel DI 16x24VDC/DQ 16x24VDC/0.5A BA
The figure below shows the address space assignment for configuration as a 1 x 32-channel
module (16 digital inputs / 16 digital outputs). You can freely assign the start address for the
module. The addresses of the channels are based on the start address.
The letters "a" to "d" are printed on the module. "EB a", for example, stands for module start
address input byte a.
Figure 4-1
Digital input/output module DI 16x24VDC/DQ 16x24VDC/0.5A BA (6ES7523-1BL00-0AA0)
Manual, 09/2014, A5E32364588-AB
Address space for configuration as 32-channel DI 16x24VDC/DQ 16x24VDC/0.5A BA
Address space
4.1 Address space
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