Cp As Profinet Io Controller; Project Engineering; Profinet Io System In Step 7 - Siemens S7-300 Configuration Manual

CP as PROFINET IO controller

S7-300/400 station with CP in PROFINET IO controller mode
The PROFINET IO controller allows direct access to PROFINET IO devices over Industrial
Ethernet.
To access the field devices connected to PROFIBUS DP, there are gateways available that
are used as PROFINET IO proxies (for example the IE/PB Link PN IO).
With certain CPs for S7-300, you have the option of operating the CP additionally or
alternatively as a PROFINET IO device.
Further information on PROFINET IO
When setting up a PROFINET IO system, read the comprehensive system documentation:
● PROFINET system description /20/ (Page 233)
● From PROFIBUS DP to PROFINET IO /21/ (Page 234)
6.1

Project engineering

6.1.1

PROFINET IO system in STEP 7

The basic procedure to configure the CP as a PROFINET IO controller is as follows:
1. You create a PROFINET IO system in STEP 7. You can either assign an existing or a
2. Then add the PROFINET IO devices to the PROFINET IO system.
Configuring and commissioning S7 CPs for Industrial Ethernet
Configuration Manual, 09/2013, C79000-G8976-C182-13
This manual contains more information on the structure and function of the supported
data records.
new Ethernet subnet to the CP as the PROFINET IO system.
For information on configuring an IO device from this point on, refer to section Intelligent
PROFINET IO device with S7-300 CP (Page 121).
STEP 7 automatically assigns addresses that you can modify if necessary. The address
information is stored in the database of the CP. When the system starts up, the
PROFINET IO controller (CP) then transfers this address information to the IO devices
(Note: the I/O and diagnostics addresses remain on the IO controller).
If the IO device is a device that is configured in an S7 station or PC station, note the
description of the IO device coupling in the section Intelligent PROFINET IO device with
S7-300 CP (Page 121).
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