Siemens SIMATIC S7-1500/ET 200MP System Manual page 51

System overview
4.3 Components
Components
CPU (standard, fail-safe,
compact or technology
CPU)
Interface module for
PROFINET IO
Interface module for
PROFIBUS DP
I/O module/
fail-safe I/O module
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The CPU executes the user program. The integrated system power
supply of the CPU supplies the modules used via the backplane bus.
Further features and functions of the CPU:
• Communication via Ethernet
• Communication via PROFIBUS/PROFINET
• HMI communication
• Integrated web server
• OPC UA server
• OPC UA client
• Integrated technology (e.g. motion control functions, trace func-
tionality)
• Integrated system diagnostics
• Integrated protection functions (access, know-how and copy pro-
tection)
• Safety mode (when using fail-safe CPUs)
The interface module:
• Is used as an IO device on PROFINET IO.
• Links the ET 200MP distributed I/O system with the IO controller.
• Exchanges data with the I/O modules via the backplane bus.
The interface module:
• Is used as a DP Device on PROFIBUS DP.
• Links the ET 200MP distributed I/O system with the DP master.
• Exchanges data with the I/O modules via the backplane bus.
The I/O modules form the interface between the controller and the
process. The controller detects the current process state via the con-
nected sensors and actuators, and triggers the corresponding reac-
tions. I/O modules are divided into the following module types:
• Digital input (DI, F-DI)
• Digital output (DQ, F-DQ)
• Digital input/digital output (DI/DQ)
• Analog input (AI)
• Analog output (AQ)
• Analog input/analog output (AI/AQ)
• Technology module (TM)
• Communication module (CM)
• Communication processor (CP)
A U connector is included in the scope of delivery for each I/O module.
For fail-safe I/O modules, an additional electronic coding element for
saving the PROFIsafe address is included in the scope of delivery and
can be ordered as spare part Accessories/spare parts (Page 363).
Function Diagram
Automation system
System Manual, 01/2023, A5E03461182-AK