Tutorial: Building a Simple Project Configuring the communication driver This part of the tutorial shows how to select and configure a driver to communicate with an external I/O device. 1. In the Project Explorer , click the Comm tab. 2. Right-click the Drivers folder, and the click Add/Remove Drivers on the shortcut menu. The Communication Drivers dialog is displayed. 3. Select a driver from the Available drivers list, and then click Select . For this tutorial, select MODBU. The driver is moved to the Selected drivers list. 4. Click OK . The Communication Drivers dialog is closed, and the driver is added to the Drivers folder in the Project Explorer . MODBU driver selected Page 77