Siemens Simatic S7-300 CPU 31xC Series Installation And Operating Instructions Manual page 162

Commissioning
8.6 Commissioning PROFINET IO
Step
Configuration Download
14
Assigning IO Device Names
15
Result
You configured the PROFINET interface X2 of your CPU and the PROFINET IO system in
STEP 7. The CPU can now be reached by other nodes in your Industrial Ethernet subnet.
Reference
For detailed information on address assignment for the PROFINET IO interface, refer to the
STEP 7 Online Help
8-38
Tasks
Download the configuration to the CPU. You have three options:
Online via MPI/ DP interface (the PG and CPU must be located on the same subnet).
•
When you download the configuration in a system containing several node addresses,
select the appropriate MPI or PROFIBUS address of the destination CPU.
Online via switch and PN interface When you download the configuration in a system
•
containing several nodes, select the appropriate IP address of the destination CPU.
Select the MAC address of the CPU if you have not assigned it an IP address yet. In
the next dialog box, you can assign the configured IP address to the CPU.
The PG must be connected to the subnet. The PG interface must be set to TCP/IP
(Auto) mode. Setting in the IE-PG Access tab of the interface properties dialog box:
Assign Project-Specific IP Address.
Offline, by saving the data to an MMC in SIMATIC Manager on your PG, and then
•
inserting the MMC into the CPU
Requirements: The PG must be connected to the subnet. The PG interface must be set
to TCP/IP (Auto) mode. Setting in the IE-PG Access tab of the interface properties dialog
box: Assign Project-Specific IP Address.
Procedure: In online mode, select the various IO devices in HW Config, then select PLC
> Ethernet > Assign Device Name to assign the corresponding device names.
Note: The CPU can only assign the IP address automatically, and thus enable its correct
communication with the IO device, after you assigned a device name to the latter.
If the configuration of the IO devices you downloaded to the CPU actually corresponds
with their physical configuration on the subnet, the CPU addresses the IO devices, and
the BF LED stops flashing both on the CPU and on the IO device.
You can now switch the CPU to RUN, provided there are no other conditions preventing a
startup, and the CPU and IO devices exchange data (read inputs, write outputs, for
example).
.
S7-300, CPU 31xC and CPU 31x: Installation
Operating Instructions, Edition 08/2004, A5E00105492-05