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3 Operating the Ethernet CP with STEP 7/NCM S7
If you replace a module, the MAC address of the predecessor is adopted
when you load the configuration data; configured ISO transport connections
remain operable.
Note
If you exchange CP modules in your plant often, you can avoid double assignment
of MAC addresses when using ISO services, for example, by following the
procedure below:
Enter the first 3 vendor−specific bytes of the printed MAC address in the
configuration.
For the last 3 bytes, enter application−specific IDs for your CP (in the example "ik",
"nm", "yx" with a range of values of 0...255 decimal in each case).
Example:
− IP address
With CPs with an additional gigabit interface, the IP address of the
PROFINET interface must not be in the same IP subnet as the IP address
of the gigabit interface.
Note
The "IP address" and "Subnet mask" input fields have no significance for ISO
transport (option "IP protocol being used").
3. Select the required subnet type in the "Subnet" list box.
4. You can display the properties dialog box for the selected subnet by clicking the
Properties button.
5. Enter information specific to the subnet node in the "General" tab.
6. You must finally confirm your input with OK, otherwise the networking is not
entered (refer to Point 3.).
Result: The CP is now configured as a network node for the corresponding S7
station.
A−68
00:0E:8C:ik:nm:xy
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 07/2010
C79000−G8976−C182−10
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