Practical Industrial Data Networks:Design, Installation and ...

• To demonstrate the use of DeviceNet in a simple networkThere are three parts to this practical exercise.Hardware/software requiredImplementation• One computer with DeviceNet software installed• Three trunk cables (gray)• Four spur cables (yellow)• One small gray interface cable• One interface box (1770-KFD)• One power supply• One power tap connection box• Photoelectric cell• One RS-232 cable• One male terminator• One female terminatorAppendix C – Practicals 3551. Connect up cables with photoelectric cell installed. Remember to putterminators at each end.2. What do you notice about the cabling and connections? Identify the colorsused for power and communications. Is there much similarity with thesecables and RS-485?3. Plug in power supply leads to power tap box. Be very careful about powerleads. In case of doubt, get instructor to assist.4. Connect up the RS-232 cable to the RS-232 interface box and notebookcomputer.5. Click on the DeviceNet icon. Note that the DeviceManager is being installed.6. Open a new project. Give a new name (for example, ‘test’) and description(whatever you need to identify it).7. Go to utilities and setup on line connection. Click on OK and then OK againunder driver configuration. Note the baud rate settings.8. Then click on ‘on line’ build. Observe it building. Be patient as it identifies allthe devices on the network.9. Confirm that all the devices on the network are identified. Remove aterminator and note the results. Why is this the case? If you have time,reconfigure all the devices later for a higher baud rate and note the results.10. To demonstrate a simple configuration of a device, select the photoelectriccell (9000 series – diffuse).11. Double click on the description and wait for it to upload. Click then on startmonitoring. Be patient as it takes a few seconds.12. Move your hand in front of the photoelectric cell and observe the results.13. Stop the device by typing stop monitoring.14. Refer to the specification sheet and modify the parameters; specifically theoperate mode. Change this to the other setting and save to device and clickOK. Commence monitoring and note what happens. Adjust operating marginas well. Observe the results.15. Review the specification sheets and identify the differences between thisapproach and using standard ‘hard wiring’.