Siemens S7-300 Configuration Manual page 206

STEP 7 special diagnostics
12.3 Starting diagnostics
Examples of setting the online path without a gateway
Figure 12-1
Figure 12-2
Attachment of the destination station using the device name
With an Ind.Ethernet (MAC address) or Ind.Ethernet TCP/IP attachment, you can also
specify the module you want to reach by selecting the device name:
1. Select the "Connection via device name" option; when this option is enabled, it is no
longer possible to enter a node address.
2. Enter the device name or click the "Browse network" button.
If more than one module is found with the same device name, select the relevant module in
the dialog that opens.
Note on the "Browse network" dialog: Depending on the device type, in the "Browse
network" dialog, you may see a module name or even no entry in the "Name" column instead
of the device name (PROFINET IO device name). If it is not a device name, the connection
cannot be assigned to the target station using the device name. If this is the case, the entry
in the "Destination station" area remains unchanged. If this is the case, disable the
"Connection via device name" option. If you select the destination station again with "Browse
network", the node address will then be updated.
206
CP requiring diagnostics can be reached directly
The CP requiring diagnostics is accessible indirectly over another CP
Configuring and commissioning S7 CPs for Industrial Ethernet
Configuration Manual, 09/2013, C79000-G8976-C182-13