3.2 Basic components of the IO device
Basic components for configuration of IO devices
The following tables show the components for configuring IO devices based on the ET 200SP
HA distributed I/O.
Table 3-2 Rail
Function Figure
The rail is the component on which the modules of the IO device are
attached.
The upper part corresponds to a standard rail (width 35 mm).
Table 3-3 Carrier module for interface module
Function Figure
Carrier modules for interface modules are available in the following
versions:
● Carrier module for 1 interface module
(required for singular connection of the IO device to PROFINET
IO)
● Carrier module for 2 interface modules
(required for redundant connection of the IO device to
PROFINET IO)
The carrier modules connect the interface module to the backplane
bus.
They enable data exchange with the I/O modules.
Note:
Interface modules cannot be plugged in if the corresponding con‐
nector for the supply voltage is plugged in beforehand.
System overview
3.2 Basic components of the IO device
ET 200SP HA Distributed I/O system
System Manual, 08/2019, A5E39261167-AD 17
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