Button Topology

The offline topology can be compared with the online topology via this dialog.

Button Topology 1:Fig.23: PROFINET Topolgy dialog

It is quite possible for a device to have several partners on a port in the online view. This is the case, for example, if a switch is used in PROFINET that does not support LLDP (protocol for neighborhood ID).

In the offline view, on the other hand, partners may have been assigned that don’t exist in the project. This takes place if the reading of the port properties was enabled during scanning and automatic appending. In this case the device has a ‘neighbor’ that is adopted into the project, but the associated device box is missing in the *.tsm file. On enabling this project the ‘neighbor’ which does not exist in the .tsm file is ignored in the driver.