System overview
2.2 Components
Distributed I/O system
System Manual, 02/2018, A5E31861578-AF
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Components
Components of the ET 200AL distributed I/O system
The following table shows and explains the function of the most important components of the
ET 200AL distributed I/O system.
Table 2- 1 Components of the ET 200AL distributed I/O system
Interface module for
PROFINET IO
• The interface module connects the
ET 200AL distributed I/O system with
the IO controller
• Exchanges data with the I/O modules
via ET-Connection
Interface module for
PROFIBUS DP
• The interface module connects the
ET 200AL distributed I/O system with
the DP master
• Exchanges data with the I/O modules
via ET-Connection
I/O modules
• The I/O modules form the interface to
the process
• Recording and controlling the current
process status via the connected sen-
sors and actuators
Identification labels
• The identification labels come with the
module and can be machine printed
• Can be ordered separately
Bus cable and M8 connector
for ET-Connection
• The bus cable creates the bus connec-
tion between the modules
Power cable and M8 con-
nector for power supply
• The power cable provides power to the
modules
Stripping tool ET-
Connection
• The stripping tool is used to strip the
ET-Connection bus cable