Documentation

Open SYCON.net and create a new project

In the right window, select the Fieldbus tab, navigate to PROFINET IO > Master, select the CIFX RE/PNM V3 item and drag it to the bus line in the Network View window

In the main menu bar, navigate to Network and click Import Device Descriptions. Select the PROFINET GSDML (*.xml) files of the devices in your PROFINET network

In the right window, select the Fieldbus tab, navigate to PROFINET > Slave, select the device you want to add and drag it to the controller bus line in the Network View window. Repeat this step for all devices connected with the IO751 module

Double-click the device node in the Network View window, navigate to Configuration > Modules and use the Add Module and Add Submodule buttons to add the modules and submodules the GSDML provides to the slots and subslots of the device. The modules configuration must match the configuration of the real device. Repeat this step for all PROFINET device nodes

Double-click the controller node in the Network View window, navigate to Controller Network Settings and change the IP Settings for the controller if required. During runtime, the PROFINET controller searches the configured PROFINET devices by name and assigns automatically generated IP addresses to the devices found. The IP address generation is based on the controller's IP address entered in the IP Settings menu

In the left-hand navigation, click Device Table. In the Name of station column, enter the names of the PROFINET devices connected with the module. If unknown, use a scanner tool such as PRONETA to obtain the station names

In the left-hand navigation, click IP Address Table. In the Mode column, select Inherit(Standard) for each device and do not change the IP addresses

In the left-hand navigation, click Stations Timing. In the RT mode column, select Unsynchronized (RT) for all devices. Specify the Updating time for each device in the range 1 to 512 milliseconds and leave the automatically calculated Watchdog time. The Updating time is the interval between two cyclic frames sent from the controller to the device (applies to the frames sent from the device to the controller as well)

In the left-hand navigation, click Controller Settings. Use the Start of bus communication parameter to determine when the module should start the communication with the connected devices

Click the Apply button, close the window, and save the project

Right-click the controller node in the Network View window, navigate to Additional Functions > Export and click DBM/nxd. Save the file to a destination of your choice. Paste the path in the Configuration File parameter of the IO751 Setup block

Double-click the controller node in the Network View window and navigate to Stations Timing. In the RT mode column, select Synchronized (IRT) for the devices for which IRT communication should be activated. Enter the Basic send-clock in the range 0.25 to 4.0 ms and specify the Updating time for the IRT-enabled devices in the same range. The Updating Times of all devices must be a multiple of the Basic send-clock .

Isochronous mode is automatically selected if an IRT-capable submodule is activated in the Isochronous modules dialog

In the left-hand navigation, click Isochronous modules and select the submodules for which you want to activate isochronous data exchange

Switch to the Topology View tab at the bottom of the main window. In this view, connect the ports as per the real-world setup. Clicking on a connection opens the dialog for the cable length and delay time.

Click the controller tile and select the Synchronized (IRT) master for the Synchronization role in the parameter list on the right.

Select the Synchronized (IRT) slave for the IRT-enabled devices

Export the configuration file as described in the previous section

To synchronize the real-time application running on the target machine with the base clock, place the related IO751 Send and Receive blocks in a function-call subsystem connected to an Interrupt Setup block. In the Interrupt Setup block, select the same Module ID as in the IO751 Setup block. Refer to the Utilities documentation for more information about this block