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Description

2.1 Introduction to PROFINET

Identification and numbering of the interfaces and ports

Interfaces and ports for all modules and devices in the PROFINET system are identified with

the following characters:

Table 2- 3

Element

Interface

Port

Ring port

Examples of identification

Three examples illustrate the rules for identifying PROFINET interfaces:

Table 2- 4

Sample labeling

X2 P1

X1 P2

X1 P1 R

Representation of PROFINET Interfaces in the Topology Overview in STEP 7

You can find the PROFINET interface in the topology overview in STEP 7. The PROFINET

interface for an IO controller and an IO device is represented as follows in STEP 7:

Number

Description

①

PROFINET interface of an IO controller in STEP 7

②

PROFINET interface of an IO device in STEP 7

③

These lines represent the PROFINET interface.

④

These lines represent the "ports" of a PROFINET interface.

Figure 2-5

Representation of the PROFINET interfaces in STEP 7

Identification for interfaces and ports of PROFINET devices

Symbol

Examples for identifying PROFINET interfaces

Interface number

In ascending order starting from number 1

(for each interface)

Port number

1 (ring port)

Function Manual, 12/2014, A5E03444486-AF

PROFINET with STEP 7 V13