Description
2.1 Introduction to PROFINET
PROFINET with STEP 7
Function Manual, 05/2021, A5E03444486-AL
29
2.1.4
Implementation of the PROFINET device model in SIMATIC
Slots and modules
A PROFINET device can have a modular and compact structure. A modular PROFINET device
consists of slots into which the modules are inserted. The modules have channels which are
used to read and output process signals. A compact device has the same design and can
include modules, however, it cannot be physically expanded, which means that no modules
can be inserted.
This is illustrated by the following graphic.
Figure 2-7
Configuration of a PROFINET device
Number
Description
①
Slot with bus interface
②
Slot with module
③
Subslot with submodule
④
Channel
A module can contain multiple submodules.
Summary of Contents for SIMATIC ET 200AL
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