Functions
5.1 Connecting other bus systems
PROFINET with STEP 7
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Function Manual, 05/2021, A5E03444486-AL
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 1).
Diagnostic options with a CPU S7-1500 as IO controller
The CPU S7-1500 (as of firmware version 1.7) as IO controller detects disrupted DP slaves
behind the IP/PB link.
5.1.2
Connect the DP slave via the IE/PB Link to a PROFINET IO system
Requirements
•
STEP 7 as of V13 SP1
•
CPU supports IE/PB link, e.g.:
–
S7-1500 CPU as of firmware version 1.7
–
S7-1500 Software Controller as of firmware version 1.7
–
S7-300/400 CPU
Procedure for connecting a DP slave via an IE/PB Link
To connect a DP slave to a PROFINET IO system via an IE/PB Link in STEP 7, follow these steps:
1.
Drag-and-drop a PROFINET CPU, for example CPU 1513-1 PN, from the hardware catalog
into the network view of STEP 7.
2.
Drag-and-drop an IE/PB Link PN IO from the hardware catalog into the network view of STEP
7. The IE/PB Link PN IO is located under Network components > Gateways > IE/PB Link PN IO.
3.
Assign the IE/PB Link PN IO to the CPU.
4.
Drag a PROFIBUS interface module e.g. IM155-6 DP HF, from the hardware catalog to the
network view.
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