Configuring Hardware and Communication Connections STEP 7.pdf

4.4.3 Downloading to PROFINET IO Devices
Configuring PROFINET IO Devices
Downloading to the CPU serving as IO controller for the first time in HW Config
After you have configured the whole IO system, you now have to download this
configuration to the CPU. In this way, the IP address is assigned to the CPU (or
more exactly: the IO controller).
Before starting the download, you should perform a consistency check in order to
have the configuration checked for addresses that have been used twice and
names that are not unique.
Find out if the CPU to receive the download can be downloaded to for the first time
via the PROFINET interface. If not, you will then have to first download the
hardware configuration via the MPI interface.
The following description of the procedure presumes that there is a connection
existing between the programming device (PG) and the CPU via Ethernet.
1. Select the PLC > Download menu command.
2. Select the modules to be downloaded to.
3. If necessary, in the "Select Station Address" dialog box, click the "Display"
button to display the modules that are actually accessible (including the CPU to
receive the download with its current IP address or its MAC address if an IP
address is still not available).
4. In the accessible modules, select the CPU to receive the download .
This module is then displayed in the "Enter connection to target station" field.
5. Start the download by clicking the "OK" button.
During this process, the CPU (i.e. the IO controller) also gets its configured IP
address assigned to it.
Downloading to the CPU serving as IO controller for the first time in the SIMATIC
Manager or NetPro
As an alternative method, you can download to the station (with the CPU of the IO
controller) in the SIMATIC Manager or NetPro (menu command: PLC >
Download).
If you trigger the download in the SIMATIC Manager, the configuration must have
already been compiled (in HW Config or NetPro).
If you download in the SIMATIC Manager or in NetPro, the "Select Station
Address" dialog box is also displayed since the configured IP address no longer
matches the actual IP address. In this case, proceed as described in the previous
section in order to reach the modules to be downloaded.
Assigning a device name to an IO device (online)
In order for the configured CPU to be able to address the PROFINET IO devices,
you must assign the configured device name to each individual IO device.
In order to use the following procedure, the IO devices must be accessible online
for the programming device (PG)/PC on the Ethernet.
Configuring Hardware and Communication Connections with STEP 7
A5E00706939-01 4-27