Description
2.1 Introduction to PROFIBUS
PROFIBUS with STEP 7 V13
14 Function Manual, 12/2014, A5E03775446-AC
Overview of I/O communication
I/O communication is the reading or writing of inputs/outputs of the distributed I/O. The figure
below gives you an overview of I/O communication using PROFIBUS DP:
Figure 2-3 I/O communication using PROFIBUS DP
I/O communication is also available with the communication module (CM) or the interface
module (IM) with integrated DP interface. These DP interfaces behave like integrated DP
interfaces of the CPU.
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