Address Space; Address Space Of The Digital Inputs And Digital Inputs/Outputs - Siemens SIMATIC S7-1500 System Manual

Configuring

7.7 Address space

7.7 Address space
7.7.1

Address space of the digital inputs and digital inputs/outputs

Address space of the digital inputs and digital inputs/outputs
The assignment of address space depends on which digital inputs and digital inputs/outputs
are used:
● 8 DI/DQ at interface X142 (I/Os are assigned to the CPU)
● 12 DI, 8 DI/DQ at interface X122/X132 (I/Os are by default assigned to the SINAMICS
Integrated)
Interface X142 (CPU)
The digital input/outputs of interface X142 are permanently assigned to the CPU.
Table 7- 4
I
Q
STEP 7 assigns the addresses automatically. You can change the addresses in the
hardware configuration of STEP 7, that is, freely assign the start address. The addresses of
the channels are derived from the start address.
You can find the addresses in the device view of the CPU under Device overview and in the
Inspector window, on the General tab under I/O addresses.
You can find a description of the control and feedback interface of the digital input/outputs at
interface X142 in Parameter assignment of digital input/outputs (X142) (Page 109).
104
Scope of the input/output data of the digital input/outputs of interface X142
76 bytes
42 bytes
SIMATIC Drive Controller
System Manual, 11/2019, A5E46600094-AA