Siemens Simantic ET200SP - Page 26

System overview
2.4 Components
Distributed I/O system
26 System Manual, 12/2016, A5E03576849-AG
Basic component
Function
Figure
Communication module
CM DP
The communication module CM DP
• Connects the CPU with PROFIBUS DP
• The bus connection is an RS485 interface
Interface module for
PROFINET IO
The interface module:
• Can be used as IO device on
PROFINET IO
• Links the ET 200SP with the IO controller
• Exchanges data with the I/O modules via
the backplane bus.
Interface module for
PROFIBUS DP
The interface module:
• Can be used as DP slave on PROFIBUS
DP
• Links the ET 200SP with the DP master
• Exchanges data with the I/O modules via
the backplane bus.