Components - Siemens SIMATIC ET 200SP System Manual

System overview

3.4 Components

3.4 Components
Basic components of the ET 200SP distributed I/O system
Table 3- 2 Basic components of the ET 200SP
Basic component
Mounting rail in accord-
ance with EN 60715
CPU/Fail-safe CPU
24
Function
The mounting rail is the rack of the ET 200SP.
The ET 200SP is installed on the mounting rail.
The mounting rail is 35 mm high.
The (F) CPU:
Runs the user program. The F-CPU also
•
runs the safety program.
Can be used as an IO controller or I-Device
•
on PROFINET IO or as a standalone CPU
Links the ET 200SP to the IO devices or the
•
IO controller
Exchanges data with the I/O modules via the
•
backplane bus.
Additional CPU functions:
Communication via PROFIBUS DP (the CPU
•
can be used as a DP master or DP slave in
combination with the CM DP communication
module)
Integrated Web server
•
Integrated technology
•
Integrated trace functionality
•
Integrated system diagnostics
•
Integrated safety
•
Safety mode (when using fail-safe CPUs)
•
Figure
Distributed I/O system
System Manual, 09/2019, A5E03576849-AJ