Siemens Simatic s7-1500 Manual page 15

Address space for configuration as DI 16x230VAC BA
The following figure shows the address space allocation for the configuration as 16-channel
module. You can freely assign the start address for the module. The addresses of the
channels are derived from the start address.
Figure 4-1
Address space for configuration as 2 x 8-channel DI 16x230VAC 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.
Contrary to 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 DI 16x230VAC BA MSI
The channels 0 to 15 of the module are copied in up to four submodules with configuration
1 x 16-channel module (Module-internal shared input, MSI). Channels 0 to 15 are then
available with identical input values in different submodules. These submodules can be
assigned to up to four IO controllers when the module is used in a shared device. Each
IO controller has read access to the same channels.
The number of usable IO controllers depends on the interface module used. Please observe
the information in the manual for the particular interface module.
DI 16x230VAC BA Digital Input Module (6ES7521-1FH00-0AA0)
Manual, 09/2016, A5E03485975-AD
Address space for configuration as 16-channel DI 16x230VAC BA
Address space for configuration as 2 x 8-channel DI 16x24VDC SRC BA S
Address space
4.1 Address space
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