The required topic format is: iot-2/evt/ event_id/fmt/ format_string Therefore our final URL will be: ssl://.com:8883 The connection to IBM is using the SSL version at port 8883.
Select MQTT Client from the drop down Configuration for the MQTT Agent are as follow:Īppend the organization id to “.” for the hostname. The complete documentation can be found here: The protocol used to connect to Watson is via MQTT. Step 2: Configuration of the KEPServer EX IoT Gateway Under Security, you may leave the Auth Token blank to auto generateīy now, you will have the required connection parameters for the connection:
When data appear in the main window, you can open a configuration window of the OPC server and watch all available OPC tags (fig. Connect your device and power it on and try to receive data packets with NMEA data. Now, the NMEA parser and the OPC server are ready, and we can test it. OPC tag names Getting variable names for NMEA data: GPS latitude, longitude, altitude, speed, and sounder dataĬlick the "OK" button twice and close all configuration windows. If you select other NMEA sentences in the parser later, click the "Import all" button again.įig.6. The OPC server will import all OPC tag names from the parser. Go to the "Predeclared items" tab and click the "Import all" button (fig. Using these parameters, you can connect from an OPC client to the OPC server. Here you can see the OPC server name and GUID. 5) by selecting the module in the list and clicking the "Setup" button on the "Data Export" tab. 4) Ģ.Open the configuration window of the OPC Server plugin (fig. Activate the OPC server, using the checkbox before the plugin name (fig. Please, click the "OK" button and close the configuration window of the parser.
3), you should unselect all sentences except three sentences: DBT, GGA, and VTG (fig. You may use the default settings here because our NMEA devices output standard NMEA sentences. The dialog window will appear on the desktop (fig. Now, please, open a configuration window of the NMEA parser plugin (click the "Setup" button near a drop-down box fig. First, we should configure the NMEA parser (fig. Now, we are ready for configuring modules. You may easily find a detailed description of all NMEA sentences on Google. DBT (Depth below transducer) provides sounder data (depth below keel) in meters. VTG (Vector track speed over the ground) contains speed in km/h GGA (GPS fix data) contains GPS coordinates: latitude, longitude, altitude We may process and extract only the following NMEA sentences because these sentences contain all necessary data GLL, GGA, RMC, DBT - NMEA sentence names. "GP" means that this is data from a GPS device. GPS devices output several sentences that begin with GPGLL, GPGGA, GPVTG, or GPRMC. Solution: Selecting NMEA sentences of GPS and the sounder You've created a configuration (using the "Green Plus" button) in the main window and configured communication parameters (baud rate, number of data bits, flow control, etc.) in the NMEA data logger and can receive any data without communication errors.
KEPWARE DATA LOGGER TRIAL
Advanced NMEA Data Logger Professional, Enterprise or a trial version.