Follow these steps to get the BACnet client started up.

1. Connect your PC to the AddMe BACnet port (NET terminals next to power) via an RS-485 interface. This may consist of an adapter on a standard PC COM port, or a USB to RS-485 "dongle" with its manufacturer's drivers installed to make it appear as a COM port.

2. Initialize the stack. Select the COM port that your RS-485 interface is connected to or configured as. Select the baud rate. The Max Master count will default to 127 unless you enter some other number. The AddMe I/O defaults to a Mac/Station ID of 1 and device instance of 2. Set the tool port to anything other than what the device is set to. If you are connecting to an existing network with multiple devices already installed, you will need to know what those devices are set to so that you can select port settings that do not conflict.

All of the settings shown in the Tool Port Settings box apply to the configuration tool only. It becomes another MS/TP device on the network. Click Init Stack. Once clicked, the BACnet MS/TP protocol stack will begin polling, and when you click Find, it will send "who is" looking for the device instance entered as Target.

NOTE: If you are uncertain of the station ID, device instance, or baud rate your AddMe is currently set to, you will need to perform the communication recovery procedure.

3. Look for your device. Until the stack finds your device, you cannot communicate with it. Enter the device instance your AddMe I/O is currently configured for (see note above), and click Find. This sends out the "Who Is" message.

You need to click Find once to send the initial Who Is, and click it a second time to see if you got a response. If you are lucky, you will get "Found device" right away, but you may need to click Find a few times.

4. Test the connection. Once MS/TP finds your device, you can test the connection by simply clicking the Diagnostic Read button. This will read Analog Input object #1 regardless of model type, and verify that you are communicating.

5. Read Device Settings. Click the Device Settings Read button. This will read the communication parameters as well as model and firmware version which are indicated in the log window.

Reading device settings, which includes model, will result in automatically changing the model selection in the top right corner of the screen. If this is not set correctly, your attempts to read/write data objects will have problems since you may be trying to access objects that don't exist or do not match configuration.

6. Proceed with configuration as applicable. You will now begin to use all other areas of the screen. Refer to the overall configuration tool help, and click on each area of the dialog box screen shot to review instructions for that area.