Linking Profinet And Profibus - Siemens SIMATIC PROFINET Function Manual

5.1.2

Linking PROFINET and PROFIBUS

Linking PROFINET and PROFIBUS
With a proxy-capable PROFINET device which is equipped with a PROFINET interface in
addition to a PROFIBUS interface (for example, IE/PB Link PN IO), you can integrate
existing PROFIBUS configurations into the PROFINET configuration.
The following figures shows how a PROFIBUS system is connected via IE/PB Link to a CPU
S7-1500 (as of firmware version 1.7).
Figure 5-2
PROFINET device with proxy functionality
The PROFINET device with proxy functionality is the substitute for a PROFIBUS device on
Ethernet. The proxy functionality allows a PROFIBUS device to communicate not only with
its master but also with all devices on PROFINET.
With PROFINET you can connect an existing PROFIBUS system to an IO controller, for
example with the help of an IE/PB Link PN IO.
From the IO controller perspective, the PROFIBUS DP slaves are connected to the same
network as the IE/PB Link PN IO. These slaves have the same device name and IP address
as the IE/PB Link PN IO, but different device numbers. Furthermore, each also has a specific
PROFIBUS address.
In this way, you can link both DPV0 and DPV1 slaves to PROFINET.
For information on how to connect a DP slave to a PROFINET IO system, refer to section
Connect the DP slave via the IE/PB Link to a PROFINET IO system (Page 96).
PROFINET with STEP 7 V14
Function Manual, 09/2016, A5E03444486-AG
Gateway from PROFINET and PROFIBUS via IE/PB link
5.1 Connecting other bus systems
Functions
95