Addressing
S7-300 Programmable Controller Hardware and Installation
7-4 A5E00105492-01
Byte address:
start address of modules
Byte address:
start address of modules + 1
Bit address
Figure 7-2 Addresses of the I/O of digital modules
An example for digital modules
The example in the figure below shows which default addresses are obtained if a
digital module is inserted in slot 4 (that is, when the module start address is 0).
Slot number 3 has not been assigned since there is no interface module in the
example.
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