Siemens SIMATIC S7-1500 Manual page 16

Address space
4.1 Address space
Address space for configuration as 1 x 16-channel DQ 16x24VDC/0.5A BA
The figure below shows the address space assignment for configuration as a 1 x 16-channel
module. You can freely assign the start address for the module. The addresses of the
channels are derived from the start address.
The letters "a to d" are printed on the module- "QB a", for example, stands for module start
address output byte a.
Figure 4-1
Address space for configuration as 2 x 8-channel DQ 16x24VDC/0.5A BA S
For the configuration as a 2 x 8-channel module, the channels of the module are divided into
multiple submodules. The submodules can be assigned to different IO controllers when the
module is used in a shared device.
The number of usable IO controllers depends on the interface module used. Please observe
the information in the manual for the particular interface module.
Unlike the 1 x 16-channel module configuration, each of the two submodules has a freely
assignable start address.
Figure 4-2
Address space for configuration as 1 x 16-channel DQ 16x24VDC/0.5A BA MSO
For the configuration as a 1 x 16-channel module (module-internal Shared Output, MSO),
channels 0 to 15 of the module are copied to multiple submodules. Channels 0 to 16 are
then available with identical values in various submodules. These submodules can be
assigned to up to four IO controllers when the module is used in a shared device:
● The IO controller to which submodule 1 is assigned has write access to outputs 0 to 15.
● The IO controllers to which submodule 2, 3, or 4 is assigned have read access to outputs
0 to 15.
The number of usable IO controllers depends on the interface module used. Please observe
the information in the manual for the particular interface module.
16
Address space for configuration as 1 x 16-channel DQ 16x24VDC/0.5A BA
Address space for configuration as 2 x 8-channel DQ 32x24VDC/0.5A BA S
Digital output module DQ 16x24VDC/0.5A BA (6ES7522-1BH10-0AA0)
Manual, 09/2016, A5E32364017-AC