Command: Add Object – Topology
Function: The command adds a Topology object to the device tree. The object shows a graphical overview of the topology of the PROFINET network.
Call:
Project menu → Add Object → Topology
Context menu of the PROFINET controller
Requirement: The PROFINET controller device is selected
The graphical topology view for PROFINET provides a schematic graphical overview of a network topology – over Ethernet devices and the connections between their ports. In this way, the connections between the Ethernet ports can be easily configured or aligned with the actual connections. The configuration of the network topology is required for various PROFINET functions (MRP, IRT, device replacement) as well as for plant diagnostics.
Tab: Topology
This tab provides a graphical overview of the topology of a PROFINET network and the neighborhood/peer information for each PROFINET Device.
| The network is scanned online and the actual topology data is loaded. |
| Toggle online view: The real topology data of the online network is compared with the projected data. This displays the status of the devices and port connections:
|
| Toggles the display between straight right-angle connections and curved connections |
Blink LED | To identify a device by its hardware, select the device and click the Blink LED button. The device should respond by flashing. |
Auto-IP | Automatic setting of a valid IP address within the network (network settings of the master) if the address scanned by the device is invalid. The address is invalid when it is not set or it is in a different subnet than the controller. The station name must be set. |
Load I&M Data | Loads the identification data and maintenance data of the device |
Reset | Resets the device settings of the selected device to default values |
Nominate | Sets the station name and IP address which have been specified for the selected slave |
In order to read the topology information, a valid IP address has to be set previously. See the Auto-IP command for this.
In this view, you can drag and drop with the mouse to connect the Ethernet ports of the individual devices. The real topology data which was determined online can be applied to the project by means of the Element command in the context menu.
The settings for the new element are defined in the Add Element dialog. You can define any number of interfaces (IP address and Port) there.
For more information, see the following: Controller – Topology